JP3243018B2 - Copy control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a copying machine which supplies a document to an exposure section by a document supply means and transfers a visible image of the document to a transfer sheet which has reached a transfer section to make a copy. Regarding the copy control device, in particular, a recycle automatic document feeder for returning an exposed document to the document table, and an intermediate tray for receiving and storing once copied transfer paper from a transfer paper recirculation path and supplying it to the transfer unit again The present invention relates to a copy control device that includes a copy control unit that selectively controls creation of a duplex copy from a duplex document.

[0002]

2. Description of the Related Art Conventionally, a copying machine reads an original image at an exposure section, and transfers a toner image corresponding to the original image to a transfer sheet reaching a transfer section to create a copy. In this case, there is known a copying machine that reverses an exposed document through a document recirculation path, returns the document to an exposure unit again, sequentially reads a double-sided image of the document, and obtains a double-sided copy. In particular, the toner image corresponding to the first-side original image is transferred onto the first surface of the transfer paper that has reached the transfer unit, and then the toner image corresponding to the second-side original image is transferred to the transfer unit on the transfer paper recirculation path. A copying machine in which copying is performed in a double-sided duplex mode in which a transfer sheet is inverted and transferred to a second side of a transfer sheet that has arrived again to obtain a double-sided copy, or a toner corresponding to a first-side original image The image is transferred to a transfer sheet that has reached the transfer section, and then a toner image corresponding to the second-side original image is transferred to another transfer sheet that has reached the transfer section to obtain a single-sided copy in a double-sided single-sided mode. Copiers are known in which copying is performed.

For example, Japanese Patent Application Laid-Open No. 64-24257 proposed by the present applicant discloses a copying method in which a copy is obtained in a double-sided single-sided mode in which a single-sided copy is obtained from a double-sided original. In this copying method, first, one of the even-numbered or odd-numbered pages of a plurality of double-sided originals is copied by using a transfer sheet by a circulating-type document supply unit (circulating ADF). Is stacked on the intermediate tray, and then the other one of the even-numbered and odd-numbered pages is copied using another transfer sheet.At this time, the copy from the intermediate tray is made before and after the copy sheet on which the other page is copied. On the other hand, a method is adopted in which a transfer sheet on which a page has been copied is fed by idle feeding (no copy processing is performed), and is discharged in the same page order as the original.

[0004]

However, even if a copying machine that obtains a copy of a two-sided image original employs a two-sided one-sided mode that obtains a one-sided copy from a two-sided original, a two-sided copy is obtained from a two-sided original. Even if the duplex mode is adopted, once a single-sided copy is made on the first side of the transfer sheet, the copied copy sheet is received from the transfer sheet recirculation path to the intermediate tray. Then, the copied transfer paper in the intermediate tray is supplied to the transfer unit again to make a copy of the second side in the double-sided double-sided mode, or simply to be fed and discharged in the double-sided single-sided mode. Become.
In such a copying machine, as the number of documents and the number of copies increase, the number of transfer papers temporarily stacked on the intermediate tray also increases.

However, since the intermediate tray used in a copying machine for obtaining a copy of a two-sided original is provided in a transfer paper recirculation path in the body of the copying machine, its storage space is relatively small, and the maximum loading of the stacked transfer paper is possible. The number of sheets is easily regulated. For this reason, conventionally, the maximum number of originals that can be placed on the original placing table is limited according to the regulation of the maximum number of stacked intermediate trays and the number of copies. For this reason, conventionally, in order to perform a two-sided copy of an original bundle that exceeds the maximum number of originals, it is necessary to perform a process of dividing the original bundle and separately performing a two-sided copy of the divided bundle of the number of originals or less. However, there was a problem in the operability of duplex copying. SUMMARY OF THE INVENTION It is an object of the present invention to provide a copy control device in which there is no restriction on the maximum number of originals due to the restriction on the maximum number of intermediate trays, and the operability is good and the productivity accompanying the copy operation is improved.

[0006]

[0007]

[0008]

In order to achieve the above object,
According to a first aspect of the present invention, there is provided a document feeder for feeding a document at a feed position of a document table to an exposure section, and an automatic recycle document feeder for returning a document in the exposure section to the document table via a recirculation path. A paper device and a document reversing means for reversing the recirculated document and sending the document to the document table, and a transfer paper for transferring a visible image obtained from the document in the exposure unit in a transfer unit. A transfer paper tray to be accommodated, an intermediate tray for receiving and storing once copied transfer paper from the transfer paper recirculation path, and supplying the transfer paper to the transfer section again, and a transfer paper in the transfer paper recirculation path selectively. Inverting means for inverting and sending out, copying number input means for inputting the number of copies, copy mode copying mode means for inputting a mode for copying and discharging the number of copies for each page of the document,
A two-sided one-sided mode input means for inputting a mode for making a one-sided copy from a two-sided document, a document counting means for counting the number of fed sheets, and a document which reaches the exposure unit according to the designated mode when receiving a drive command And a copy control means for controlling the transfer of the visible image to the transfer paper which has reached the transfer portion to create a copy, wherein the copy control means is set by the input number of copies. Means for calculating the maximum number of continuously copyable originals by dividing the maximum number of sheets stored in the intermediate tray; and the maximum position from the first sheet to the feed position of the original table in accordance with the drive command. If there is an original that has been copied before this time so that the first side of each original up to the number of continuous copyable originals is set, the original is inverted and the recirculation is performed so that it is placed after the last original on the original mounting table. A first-side original setting means for performing idle feeding via a path; a maximum completion continuity of the original mounting table in accordance with a control completion signal of the first-side original setting means and an input of a copy mode for the number of copies and a duplex single-sided mode; Copies of the first side of the originals with the number of copies that can be made are made by the number of copies using the transfer paper in the transfer paper tray, and the inverted copies are placed on the intermediate tray. A first-side copy unit that inverts and returns the original to the original table after exposure, and a remaining copy other than the current maximum number of continuously copyable originals on the original table according to a control completion signal of the first-side copy unit. If there is a document, the second side initial position setting means for reversing and loading the document after the current maximum number of continuous copyable documents, and the document in response to a control completion signal of the second surface initial position setting means. Mounting If there is a copied original before this time so that the second side of each original from the first sheet to the maximum number of continuously copyable originals can be set at the feed position of A second-side original setting means for performing idle feeding to be placed after the last original;
In response to the control completion signal of the second-side original setting means and the input of the copy mode for the number of copies and the double-sided single-sided mode, the transfer paper in the intermediate tray is discharged by the number of copies to be skipped. The second side copy of the original is made by the number of copies made of the transfer paper in the transfer paper tray and the empty feed / second side copy mode is repeated by the number of originals which can be continuously copied this time. At the same time, a control completion signal for the number of copies of the idle feed / second side copy means and the number of copies of the idle feed / second side copy means for inverting and returning the originals of the maximum number of continuously copyable originals to the original mounting table. Only when there are remaining originals other than the current maximum number of continuous copyable originals on the original mounting table, the remaining originals are reversed and stacked after the current maximum number of original copyable originals, and One-sided manuscript Characterized in that the bets means constituted by the first surface initial position setting means for emitting a drive command.

According to a second aspect of the present invention, there is provided a document supply means for feeding a document at a feed position of a document table to an exposure section, and an automatic recycle document supply for returning the document in the exposure section to the document table via a recirculation path. Equipped with a paper device and document reversing means for reversing the recirculated document and sending it to the document table; and
A transfer paper tray in which a transfer paper for transferring a visible image obtained from the original in the exposure unit is transferred in a transfer unit, and the transfer paper once copied is received and stored in a transfer paper recirculation path, and the transfer unit is again stored in the transfer unit. The intermediate tray to be supplied to the printer, a reversing means for selectively reversing and transmitting the transfer paper in the transfer paper recirculation path, a copy number input means for inputting the number of copies, and a mode for making a one-sided copy from a double-sided document are inputted. A double-sided single-sided mode input means, a document counting means for counting the number of fed sheets, and a transfer of a visible image of the document which has reached the exposure unit to the transfer unit according to the designated mode when receiving a drive command. A copy control means for controlling a transfer to a paper to make a copy, wherein the copy control means is located at an intermediate position from the current first sheet at a feed position of the document table in response to the drive command. Tray
If there is a copied document before this time so that the first side of each document up to the large number of sheets can be set in an overlapping manner, the copied document is reversed and the recirculation path is set so as to be placed after the last document on the platen. The first-side original setting means to be fed by way of the first-side original setting means, and the current intermediate tray of the original placing table in response to the control completion signal of the first-side original setting means and the input of the double-sided single-sided mode.
A copy of the first side of the original up to the number of sheets to be stored is prepared by using the transfer paper of the transfer paper tray, and is reversed and placed on the intermediate tray. A first-side copying unit that inverts and returns the document to the table, and if there is any remaining document other than the current maximum number of sheets stored in the intermediate tray on the document table in response to a control completion signal of the first-side copying unit, This year's middle tray maximum yield
A second-side initial position setting means for inverting and stacking after the number of originals to be supplied, and a feed position of the original placing table intermediate from the current first sheet in response to a control completion signal of the second-side initial position setting means; If there is a document that has been copied before this time so that the second side of each document up to the maximum capacity of the tray can be set, the document is reversed and the document is fed to the idle after the last document on the document table. The transfer sheet of the intermediate tray is discharged by idle feeding in accordance with the control completion signal of the two-sided document setting means and the input of the control completion signal of the second-sided document setting means and the double-sided single-sided mode, and then the document on the document table is The single-sheet feed / second-side copy mode, in which a copy of the second side is made from the transfer paper in the transfer paper tray and discharged, is set to the maximum
Repeat the number of sheets delivered, and increase the maximum
A single idle feed / second side copying means for inverting the originals up to the number of sheets to be fed back onto the original mounting table;
By inverting the remainder of the document only after the current in the intermediate tray up stored number document if there are remaining document other than this intermediate tray largest number of stored said document table in accordance with a control completion signal surface copier The number of current copy copies is counted according to a first-side initial position setting means for loading and issuing a drive command to the first-side original setting means, and a control completion signal of the first-side initial position setting means. And copy number checking means for issuing a drive command to the first-side original setting means until the copy number command value is reached.

[0010]

[0011]

[0012]

In the first invention, the maximum continuous copyable original document number calculating means calculates the maximum continuous copyable original document number, and the first-side original setting means sets the maximum continuous copyable original position at the feed position of the original placing table from the current first original sheet. The first side of each original up to the number of copies that can be copied is set in an overlapped manner, and the first side copying means copies the first side copy of the original up to the maximum continuous copyable number of originals on the first side of the transfer paper. The originals of the maximum number of continuously copyable originals are inverted and returned on the original placing table, and the second-side initial position setting means remains at the feed position. If there is a document of this type, it is inverted and stacked after the current document, and the second-side document setting means superimposes the second side of each document from the first sheet to the maximum number of continuously copyable originals at the feed position. Copy the original before this The second copy is discharged after the last original is placed, and the copy sheet on the second tray is ejected by the empty feed for the number of copies, and the second-side copy means discharges the transfer sheet on the intermediate tray by the number of copies. The second copy mode is repeated up to the maximum number of continuously copyable originals, and the original is inverted on the original platen. When the first-side initial position setting unit has a remaining original other than the current original, it is inverted and stacked after the current original, and a drive command is issued to the first-side original setting unit. When a single-sided copy is made on each transfer sheet from the double-sided original, the original can be divided into a double-sided original bundle of the maximum number of continuously copyable originals, and a plurality of single-sided copies can be intensively produced for each of the divided double-sided original bundles.

In the second invention , the first- side original setting means moves the intermediate tray to the feed position of the original placing table from the current first sheet.
The first side of each document up to the large number of sheets is set in an overlapping manner, and the first side copying means makes a copy of the first side of the document up to the maximum number of sheets stored in the intermediate tray on the first side of the transfer paper. Invert the tray and place it on the intermediate tray.
ー Reverse the maximum number of originals on the original
If there is a remaining original at the feed position by the second-side initial position setting means, the original is reversed and stacked after the current original, and the second-side original setting means is moved from the first sheet to the intermediate tray at the feed position.
The copied originals before and after the current one are reversed so that the second side of each original up to the maximum number of sheets to be stacked is set and placed after the last original. The single empty feed / second side copy mode, in which the second side copy of the original at the feed position is created by the transfer paper of the transfer paper tray,
The originals are repeated up to the maximum number of sheets stored , the originals are inverted and stacked on the original placing table, and a drive command is issued to the first-side original setting means, and the current copy number counted by the copy number check means is the copy number command. Since the drive command is issued to the first-side original setting means until the value reaches the value, when making a one-sided copy on each transfer sheet from a plurality of two-sided originals, the original bundle is divided into a two-sided original bundle having the maximum number of sheets stored in the intermediate tray ,
One-sided copies can be made intensively one copy at a time for each divided double-sided document bundle.

[0014]

1 shows a copying machine equipped with a first copying control device according to the present invention. This copying machine includes an exposure unit 2 at an upper portion of a main body 1 thereof, and a photosensitive drum D is disposed immediately below the exposure unit 2. Around the periphery of the photosensitive drum D, a charge removing lamp 3, a charge removing charger 4, an erase lamp 5, Part 6, transfer charger 7 at transfer position P, separation charger 8, separation claw 9,
The cleaning units 10 are sequentially provided. The exposure unit 2 includes a fourth mirror 11, a lens 12, a third mirror 13, a second mirror 14, a first mirror 15, and an exposure lamp 16. A transfer paper conveyance path R extends from a space between the separation charger 8 and the separation claw 9, and includes a conveyance belt 21 provided at one end of the separation charger 8 and a fixing unit 22 having a pair of rollers at the other end. And the reversing section 23 at the other end of the fixing section 22
And reaches the shift tray 51 via the transport rollers 24 and 25 and the discharge roller 26.

In the drawing, reference numeral 33 denotes a switching claw, at which a transfer paper transport path R branches, and a copied transfer paper can be sent to a finisher 34. The finisher 34 is controlled by a control circuit 92 (see FIG. 3) to be described later.
3 is driven to selectively discharge documents to the shift tray 51 and the staple completion tray 52. The shift tray 51 is provided with a well-known J
The shift is controlled by the OB delimiter signal, and the paper is shifted between JOBs. On the other hand, staple completion tray 5
When the paper is discharged to the staple tray 2, the switching claw 33 guides the copied transfer paper from the staple transport unit 53 to the staple tray 54,
Documents are stored until a staple signal from the control circuit 92 is received, and the jogger 55 aligns the sheet bundle. Then, the stapler 56 operates according to the stapling signal, performs the stapling operation, and discharges the stapled sheet bundle to the stapling completion tray 52 by the discharge belt 57.

When the reversing unit 23 is driven in the reversing mode, the transfer paper is temporarily fed to a reversing path R1 extending above the transfer paper transport path R, and a recirculation path R extending downward therefrom.
2 is controlled by the copy control circuit 90 (see FIG. 3) to move the transfer paper backward. The recirculation path R2 reaches the intermediate tray 29 from the reversing section 23, and further reaches the intermediate tray 29.
Then, the paper reaches the registration roller 32 from the vertical conveyance path R3 via the paper feed roller 30. Therefore, the reversing section 23 and the recirculation path R
2, the transfer paper can be inverted and supplied to the transfer position P again. Below the intermediate tray 29, first and second paper feed trays 35 and 36 are provided. Each tray contains a large number of transfer papers of different sizes, and each transfer paper
The sheets are fed one by one at the time of driving of the driving units 7 and 38. A paper discharge path extends from each of the paper feed rollers 37 and 38, merges in the vertical transport path 31, and reaches the registration roller 32. An automatic recycled document feeder 39 is provided above the exposure unit 2 of the main body 1 of the copying machine.

The automatic recycle document feeder (hereinafter simply referred to as RDH) 39 has a housing-like frame 40 supported by the main body 1 of the copying machine, and the frame 40 forms an original mounting table. A document table 41 and a vacuum belt 42 are provided. A document partitioning unit 50 is provided above the vacuum belt 42, and can be set so that a nail protruding from the document separating unit 50 rests on the uppermost document. Further, from one end of the vacuum belt 42, the original is conveyed in a loop as a transfer paper recirculation path as a transfer paper recirculation path that bends and extends downward sequentially and returns the original to the original table 41 again via the discharge roller 43.
Is deployed. This document transport path r is a vacuum belt 4
(2) an intermediate conveyance path forming unit 44 and a turn roller 48 positioned below, a conveyance belt 46 positioned below and facing an exposure processing unit 45 made of a glass plate, and a document reversal provided at one end of the conveyance belt 46 The portion 47 and the discharge roller 43 are configured to be continuous.

The vacuum belt 42 drives a fan motor (not shown) in response to a paper feed command signal from a control circuit 94 (see FIG. 3), which will be described later, and feeds the lowermost feeding position of the original on the vacuum belt 42. The original F is sucked from the inside of the vacuum belt 42 and driven so as to be conveyed in the paper feeding direction. The document reversing section 47 includes a document conveying path r extending from a position where a switching claw 49 (held at the solid line position in FIG. 1 during recycling control) 49 at one end of the conveying belt 46 to the discharge roller 43 and a switchback roller 48. Are provided in parallel with each other, and the original is reversed and returned to the original table 41 via the switchback path r1 and the discharge roller 43 at the time of reverse feeding, and the original is temporarily transferred to the switchback path r1 at the time of forward transfer. After being guided, the original can be returned to the original table 41 via the original transport path r in a normal rotation state.

An operation unit 60 as shown in FIG. 2 is provided on the upwardly outer wall surface of the main body 1 of the copying machine. Here, reference numeral 6
1 is a start key for instructing a copy start, 62 is a numeric keypad for inputting the number of copies, 63 is a clear / stop key for instructing clearing of a numeral and copy stop,
64 is a set number display for displaying the number of copy sets;
65 is a copy number display for displaying the number of copies, 66 is a document number display for displaying the number of documents, 67 is a paper size display for displaying the copy paper size set in each tray, 68 is each tray 35, 36 is a paper remaining amount display for displaying the remaining amount of copy paper set in 36, and 69 is set in a mode (automatic paper selection mode) for automatically selecting an optimum copy paper from document size information and the like. , An automatic paper selection mode display 70 for displaying copy paper, a paper key 70 for selecting a copy paper, a paper size selection display 71 for displaying which copy paper size is selected, and 72 a copy machine being prepared. Waiting to be displayed, 73 indicates that the copier is ready to be copied. 74 can be used to indicate the stack mode. Key, 75 stack mode indicator for indicating that the stack mode has been set, 7
Reference numeral 6 denotes a staple key for instructing the staple binding mode, reference numeral 77 denotes a staple mode indicator for displaying that the staple binding mode is set, and reference numeral 80 denotes that two single-sided copies are made from one double-sided original. Is a double-sided single-sided mode key, 81 is a double-sided single-sided mode indicator that indicates that the double-sided single-sided mode is set, and 82 is 1
A double-sided double-sided mode key 83 for instructing that one double-sided copy is made from one double-sided document, and a double-sided double-sided mode indicator 83 for displaying that the double-sided double-sided mode is set.

FIG. 3 is a block diagram showing a control system of the copy control device of the copying machine. Here, reference numeral 90 is a copying machine, and reference numeral 9 is
Reference numeral 1 denotes a control circuit of the RDH 39, and reference numeral 92 denotes a control circuit of the finisher 34, which is configured to be able to exchange signals with each other. Each of these control circuits is a CPU,
A ROM, a RAM, an input / output circuit, and the like are provided. Here, a copy control circuit 90 serving as copy control means includes a motor, solenoid,
A clutch and the like and sensors are connected so that signals can be transmitted and received. Similarly, a motor, a solenoid, a clutch, and the like, which are loads in the RDH 39 and collectively represented by reference numeral 94, and sensors are connected to the control circuit 91 so that signals can be transmitted and received.
Similarly, a motor, a solenoid, etc., which are loads in the finisher 34 and sensors, which are collectively represented by reference numeral 95, are connected to the control circuit 92 so that signals can be transmitted and received.

Here, the CPU of the copy control circuit 90 as copy control means is written in the ROM in FIGS.
The control of the copying machine is performed according to the flowchart of FIG. 7, and at the same time, the drive control of the RDH 3 and the finisher 34 is performed together with the control circuits 91 and 92. Here , each function of the copy control circuit 90 as each copy control means will be described separately with reference to FIGS. 4 to 7, and thereafter,
The copy control performed by the copy control circuit 90 shown in FIG. 1 will be described with reference to the control programs shown in FIGS. 4
The copy control circuit 90 includes a maximum continuous copy original number calculating unit A1, a first-side original setting unit A2, a first-side copying unit A3, a second-side initial position setting unit A4, and a second-side original setting unit A5. Function as the second-side copy unit A6 and the first-side initial position setting unit A7.

Here, the maximum continuous copyable original document number calculating means A1 divides the intermediate tray maximum storage number C set by the number of copies B inputted by the ten keys 62 to obtain the maximum continuous copyable original document number M (= C / B). ) Is calculated. The first-side original setting means A2 sets the first side of each original from the present first sheet to the maximum number of continuously copyable originals M at the feed position F of the original placing table in response to a drive command (turn on of the start key 61). If there is a copied original before this time so as to be set in an overlapped manner, it is inverted and fed through the recirculation path r so as to be placed after the last original on the original table 41. The first-side copying unit A3 responds to the control completion signal of the first-side original setting unit A2 and inputs a copy mode for the number of copies (by turning on the stack key 74) and a two-sided duplex mode (by turning on the two-sided duplex mode key 82). A copy of the first side of the document having the maximum number M of continuous continuous copyable documents on the table 41 is made by the first side of the transfer sheet of the transfer paper tray (automatically selected according to the size of the original on one of 35 and 36). A copy is made for each copy number B, and the copy is inverted and placed on the intermediate tray 37.
The original of the maximum number M of originals that can be successively copied is inverted and returned on the original table 41 after exposure.

The second side initial position setting means A4 responds to the control completion signal of the first side copying means A3 by the original table 41.
If there is any remaining document other than the current maximum number M of continuous copyable originals,
The document is inverted and loaded after the original. The second-side original setting means A5 responds to the control completion signal of the second-side initial position setting means A4 at the feed position F of the original table 41 to set the number of originals from the first to the maximum continuously copyable originals M. If there is a copied original before this time so that two sides are set one on top of the other, the original is reversed and fed in an empty manner so as to be placed after the last original on the original table 41. The second-side copy unit A6 responds to the control completion signal of the second-side original setting unit A5 and inputs a copy mode (by turning on the stack key 74) and a duplex mode (by turning on the duplex mode key 82) for the number of copies. The copy of the second side of the original having the maximum number M of continuous copyable originals on the mounting table is
The originals of the maximum number of continuously copyable originals M are stored in the original table 4 at the same time.
Flip back to 1 The first-side initial position setting means A7 responds to the control completion signal of the second-side copying means A6 only when there is a remaining document other than the current maximum continuously copyable number of documents M on the document table 41, and the current maximum continuous copy. The remaining originals are reversed and stacked after the originals of the possible number of originals M, and a drive command is issued to the first-side original setting means A2.

The copy control circuit 90 shown in FIG. 5 includes a first- side original setting means A2, a first-side copying means A3-2, a second-side initial position setting means A4, and a second-side original setting means A5. , Single reversing / second side copying means A6-2 and first
Plane initial position setting means A7 and copy number checking means A
And 8. Here, an intermediate token is stored in a storage unit (not shown).
The maximum number C of stored sheets is set. The first-side original setting unit A2 moves the intermediate position from the current first sheet to the feed position F of the original placing table in response to a drive command (the start key 61 is turned on).
If there is a copied original before this time so that the first side of each original up to the maximum number C of trays can be set, the original is reversed and the recirculation path r is placed after the last original on the original table 41. Feeding via. First side copy means A
Reference numeral 3-2 denotes a control completion signal of the first-side original setting means A2 and a two-sided duplex mode (by turning on a two-sided duplex mode key 82).
Of the intermediate tray of the document table 41
A copy of the first side of the document having the large storage capacity C is created on the first side of the transfer paper of the transfer paper tray (automatically selected according to the size of the original on one of 35 and 36), and the intermediate tray 29 is used.
And the maximum storage capacity of the intermediate tray
After exposing the document of the number of sheets C, the document is reversed on the document table 41 and returned.

The second-side initial position setting means A4 responds to the control completion signal of the first-side copying means A3-2 by, if there is any remaining document on the document table 41 other than the current maximum number C of the intermediate tray, is used. This time the maximum tray capacity C
The document is inverted and loaded after the original. The second-side document setting means A5 sets the second sheet of each document from the first sheet to the maximum number C of intermediate trays at the feed position F of the document table 41 in response to the control completion signal of the second-side initial position setting means A4. If there is a document that has been copied before this time, so that the originals are set one on top of the other, this is reversed and the document is fed after the last document on the document table 41 so as to be placed after it. Single reversal / second side copy means A6
-2 transfer sheet of the intermediate tray 29 copies of the second surface of the original document table 41 in response to input of the control completion signal and the double-sided duplex mode of the second surface of the original set of means A5 (double-sided double-sided mode key 82 on) this intermediate tray single inversion and second side copy mode for discharging the paper to create a second face of
Along with the repeat only the value of up to a maximum storage number of sheets C, in this time
Documents up to the maximum number C of trays to be stored
Flip it up and back. The first-side initial position setting means A7 responds to the control completion signal of the single reversing / second-side copying means A6-2 to set the maximum number of sheets stored in the intermediate tray of the document table 41 at this time.
This intermediate tray only when there are remaining documents other than C
The remaining originals are inverted and stacked after the original having the maximum number of sheets C , and a drive command is issued to the first-side original setting means A2. The number-of-copies checking means A8 counts the current number of copies Bn in response to the control completion signal of the first-side initial position setting means A7, and sets the first-side original setting means until the same value reaches the number B of copies specified by the ten key 62. A drive command is issued to A2.

As shown in FIG. 6, the copy control circuit 90 according to the first aspect of the present invention includes a maximum continuous copyable original document number calculating means A1.
First-side original setting means A2, first-side copying means A
3-3, a second-side initial position setting unit A4, a second-side original setting unit A5, and an empty feed / second-side copy unit A6-3 for the number of copies, and a first-side initial position setting unit A7. Here, the maximum continuous copyable original document number calculating means A1 divides the maximum storage number C of the intermediate tray 29 set by the number of copies B input by the ten keys 62 to obtain a maximum continuous copyable original document number M (= C / B). Is calculated. The first-side original setting means A2 sets the first side of each original from the present first sheet to the maximum number of continuously copyable originals M at the feed position F of the original placing table in response to a drive command (turn on of the start key 61). If there is a copied original before this time so as to be set in an overlapped manner, it is inverted and fed through the recirculation path r so as to be placed after the last original on the original table 41. The first-side copying unit A3-3 responds to the control completion signal of the first-side original setting unit A2 and inputs the copy mode (by turning on the stack key 74) and the double-sided and single-sided mode (by turning on the double-sided and single-sided mode key 80) for the number of copies. The copy of the first side of the current maximum number of continuous copyable originals M on the original table 41 is transferred to the first transfer paper on the transfer paper tray (one of 35 and 36 is automatically selected according to the original size or the like). together placed inverted in the intermediate tray 29 to create the number of copies B min increments by a surface, returning the original of this maximum continuous copying possible number of documents M is inverted on the document table 41 after exposure.

The second-side initial position setting means A4 responds to the control completion signal of the first-side copying means A3-3 if there is any remaining document on the document table 41 other than the current maximum number M of continuously copyable documents. Is inverted and stacked after the current maximum number M of documents that can be continuously copied. The second-side original setting means A5 responds to the control completion signal of the second-side initial position setting means A4 at the feed position F of the original table 41 to set the number of originals from the first to the maximum continuously copyable originals M. 2
If there is a document that has been copied before this time, so that the originals are set one on top of the other, this is reversed and the document is fed after the last document on the document table 41 so as to be placed after it. The copy feed / second-side copy unit A6-3 provides a control completion signal for the second-side original setting unit A5, a copy mode (by turning on the stack key 74) for the number of copies, and a double-sided single-sided mode (double-sided single-sided mode key 80).
In response to the input of "ON", the transfer paper in the intermediate tray 39 is discharged by the number of copies B by idle feeding, and then a copy of the second side of the document on the document table 41 is transferred to the transfer paper tray (35,
36, which is automatically selected according to the document size, etc.), the number of copies to be copied is B, and the number of copies to be discharged is the number of copies to be discharged. And the current maximum number of continuous copyable originals M is inverted and returned on the original table 41. The first-side initial position setting means A7 responds to the control completion signal from the copy-feed / second-side copy means A6-3 by the number of copies, and when there are remaining originals on the original table 41 other than the current maximum continuously copyable original number M of originals. Only after this, the remaining originals are inverted and stacked after the current maximum number M of originals that can be continuously copied, and a drive command is issued to the first-side original setting means A2.

As shown in FIG. 7, the copy control circuit 90 according to the second aspect of the present invention comprises a first- side original setting means A2, a first-side copying means A3-4, and a second-side initial position setting means A4.
The second-side original setting means A5, the single-sheet feeding / second-side copying means A6-4, and the first-side initial position setting means A7
And copy number checking means A8. Here, the maximum number C of intermediate trays stored is stored in a storage unit (not shown).
Has been set. The first-side original setting means A2 superimposes the first side of each original from the current first sheet to the maximum number C of intermediate trays at the feed position F of the original placing table in response to a drive command (ON of the start key 61). If there is an original that has been copied this time so that it is set again, it is reversed and fed through the recirculation path r so as to be placed after the last original on the original table 41. The first side copying means A3-4 this intermediate tray up storage number C of the document table 41 in response to input of the control completion signal and the double-sided single-sided mode of the first surface of the original set of means A2 (double-sided single-sided mode key 80 on) A copy of the first side of the original is made from the first side of the transfer paper of the transfer paper tray (automatically selected according to the size of the original on one of the sides 35 and 36), and is inverted and placed on the intermediate tray 29. At the same time, the original of the current maximum number of sheets C stored in the intermediate tray is inverted and returned to the original table 41 after the exposure.

The second-side initial position setting means A4 responds to the control completion signal of the first-side copying means A3-4 by, if there is any remaining document other than the current intermediate tray maximum sheet number C in the document table 41, this document. This time the maximum tray capacity C
The document is inverted and loaded after the original. The second-side document setting means A5 sets the second sheet of each document from the first sheet to the maximum number C of intermediate trays at the feed position F of the document table 41 in response to the control completion signal of the second-side initial position setting means A4. If there is a document that has been copied before this time, so that the originals are set one on top of the other, this is reversed and the document is fed after the last document on the document table 41 so as to be placed after it. Single empty feed / second side copy means A
Reference numeral 6-4 denotes a control completion signal of the second-side original setting means A5 and a double-sided single-sided mode (by turning on the double-sided single-sided mode key 80).
In response to the input, the transfer sheet in the intermediate tray 29 is ejected by idle feeding, and a copy of the second side of the document on the document table 41 is copied on the transfer sheet tray (one of the transfer paper trays 35 and 36 according to the document size and the like). this intermediate tray single air feed-second surface copy mode for discharging the paper to create a transfer paper is automatically selected)
ー Repeat the value up to the maximum number of sheets C
Documents up to the maximum storage capacity C of the intermediate tray
Flip back to 1 The first-side initial position setting means A7 stores the current intermediate tray maximum in the original table 41 in response to the control completion signal of the single-sheet feed / second-side copy means A6-4.
Only when there are remaining documents other than the number C ,
The remaining originals are inverted and stacked after the original having the maximum number of stored sheets C , and a drive command is issued to the first-side original setting means A2. The number-of-copies checking means A8 responds to the control completion signal of the first-side initial position setting means A7 to set the current number of copies B
n is counted, and a drive command is issued to the first-side original setting means A2 until the same value reaches the number of copies B designated by the ten keys 62.

The copy control operation performed by the copy control circuit 90 of the copying machine shown in FIG. 1 will be described below with reference to the control program of the copy control circuit 90 shown in FIGS. When the copy control is started, the process waits for the input designation of the number of sets B by the ten keys 62 in step s1, and stores the data in the set copy storage area in the ROM of the copy control circuit 90 by the input. In step s3, the stack key 74
The stack mode is set if it is on, otherwise the on / off determination of the two-sided double-sided key 82 is made in step s5. If it is on, the two-sided two-sided key 82 is set in step s13. It is determined whether the double-sided single-sided key 80 is on or off.
If it is not likely to set the double-sided single-sided mode in step s3
Return to and wait for each key to turn on. If it is determined that the mode is the stack mode and the process proceeds to steps s4 and s7,
Is turned on and off. If on, the duplex double-sided mode is set in step s9. If not, the process proceeds to step s8 to determine whether the double-sided single-sided key 80 is turned on or off. Otherwise, the process returns to step s7 and waits for the ON input of both keys 82 and 80.

When the process reaches step s11 from any of steps s9 and s10, the process waits for the input of the start key 61, and determines whether or not the mode is the duplex mode in step s12 according to the input. Proceeding to s19, the duplex mode for taking a duplex copy from the duplex document is performed together with the stack mode. If No, the process proceeds to step s67 in FIG. 19 to perform the duplex mode for taking a single-side copy from the duplex document together with the non-stack mode. On the other hand, when the process reaches step s15 from any of steps s13 and s14 instead of the stack mode, it is determined here whether or not the start key 61 has been input. If yes, the process proceeds to step s43 in FIG. 18 to perform the duplex duplex mode for taking a duplex copy from the duplex document together with the non-stack mode. If No, the process proceeds to step s96 in FIG. Perform with the stack mode. When the process proceeds to step s16 assuming that the start key 61 has not been input in step s15, the on / off state of the stack key 74 is determined again. When the stack key 74 is on, the stack mode is set in step s18 and the process returns to step s11 to return to the stack mode. Otherwise, the process returns to step s15, and the determination processing of the double-sided double-sided mode and the double-sided single-sided mode under the non-stack mode is repeated again.

Assume that the stack mode has been set to the double-sided double-sided mode, and the process has reached step s19 in FIG. Prior to this, assuming that the number of originals A = 15 is placed on the original table 41, the number of copies B = 9 is input, and the maximum number of intermediate trays C is set to 50, FIG. FIG.
This will be described with reference to FIG. In steps s19, 20, and 21, the first-side copy mode is set, the maximum number of continuous copyable originals M = C / B = 50/9 = 5, and the remainder 5 is calculated, and the copied original copy number counter is cleared. You. The number of copied originals is used when the copied originals, which will be described later, are fed by an idle feed. Next, in steps s22 to s25, the document number counter is cleared, and this document number is used for comparison with the maximum continuous copyable document number. Next, document feeding is started, the document number counter is incremented by one, updated, and the copy number counter is cleared. In step s26, it is first checked whether or not the first-side copy mode is set, and it is determined that the first-side copy mode is set, and the designated sheet feed tray (the sheet feed tray 35,
36 is set. ) Is supplied to the transfer position P side in synchronization with the rotation of the photosensitive drum D.
In the copy control, nine copies of the first side are made for each original according to a predetermined copy control, and the copied transfer paper is placed in the intermediate tray 2.
The copy number counter is set to +
1 and updated.

In step s31, it is determined whether or not the set copy number B = 9 and the current copy copy number match.
Steps s26 to s31 are repeated, and original 1
When the first page copy is counted nine, the process reaches step s32, and the document is reversed and discharged to the document table 41 through the reversing path r1. Then, the document end signal is checked, and if there is no end signal, the process proceeds to step s34, where the number of documents A>
Check the maximum number of originals M (5) that can be
If it is o, the next original (second sheet) is fed to the exposure position again in step s23, and steps s24 to s34 are repeated to create nine copies of the first side of each of the second to fifth originals. Here, if the current number of originals exceeds the maximum number of continuously copyable originals M (5) before the original end signal comes, the intermediate tray 29 cannot accommodate any more transfer papers. Interrupting, the remaining uncopied originals (6 to 15 sheets) are fed in reverse by reverse discharge, the first-side copy mode is checked, and if Yes, the process reaches step s39.
The second-side copy mode is set, and the presence or absence of a copied document is checked. Since the current copy document number counter is zero, it is determined that there is no copied document, and the process returns to step s22 of No.

When the process reaches step s22 again, the document number counter is cleared and the first document is fed (at this time, the document is inverted and the second side is set in the exposure section). Is incremented by 1 to clear the copy number counter and check the first-side copy mode. In this case, since the mode is the second surface mode, the process reaches step s28, the inverted transfer sheet is supplied from the intermediate tray 29 to the transfer position P side, and copy control is performed. This double-sided copy is sent to the finisher 34. Then, the copy number counter is incremented by one, and step s is performed until the set number B = 9 and the current copy number match.
Steps from 26 to s31 are repeated, and if yes, the process reaches step s32 to invert the document and check the document end signal. If there is no end signal in step s33, it is checked whether the current number of originals exceeds the maximum number M (5) of continuously copyable originals. If No, steps s23 to s34 are performed again.
Are repeated, and all the nine originals on the second surface of the fifth original are copied, and the process reaches step s35 with Yes. At this point, the remaining uncopied originals are fed in reverse by reverse discharge, and the first-side copy mode is checked. Since it is now No, the process proceeds to step s37 to return to the first-side copy mode, and the number of copied originals is now five. And storage processing. That is, the number of originals is added to the copied original number counter and updated. Next, it is determined whether or not there is a copied document, and since there is a copied document, the copied document is fed in reverse by reverse discharge.

Returning again to step s22, the same processing as that for the first to fifth sheets of the first and second surfaces is sequentially repeated, and
The same process is sequentially repeated for 6 to 10 sheets of the first side and the second side, and both sides are copied. Further, in the copy processing of the first side of the originals 11 to 15, the copying of the nine copies of the first side of the fifteenth original is completed, the process reaches step s32, the original is reversed to the second side, and the original end signal is output. Check. Steps
At step 33, the end signal is input upon completion of the copy processing of the first side of the 15 originals, so that the process reaches step s42 and checks the first side copy mode. Is set, the flow advances to step s41 of Yes from the presence of the copied original, and the copied originals (1 to 10 sheets) are fed by skipping.
In step 1, the number of copies of the second side of the eleventh sheet is set to B = 9 copies. In step s32, the document is inverted and discharged to the document table 41. Then, the document end signal is checked, and if there is no end signal, the process proceeds to step s34, where the number of documents A> the maximum number of continuous copyable documents M (5 sheets) is checked. The sheet is fed to the exposure position on the second side of the eye), and steps s24 to s34
repeat. Eventually, in step s31, when nineteen 15 second-side copies are counted, the process proceeds to step s32,
The document is inverted and discharged onto the document table 41, and the process proceeds to step s42 from the input of the document end signal, and the control is terminated assuming that the mode is not the first-side copy mode.

As a result, as shown in FIG. 9, nine copies of each double-sided (first and second side) copies of the first to fifteenth originals are sequentially stacked on the staple completion tray 52. It will be. Next, it is assumed that the process has reached the step s68 in FIG. 19 as the double-sided single-sided mode in the stack mode.
Before reaching this, it is assumed that the number of originals A = 15 is placed on the original table 41, the number of copies B = 9 is input, and the maximum number of intermediate trays C = 50 is set. This will be described with reference to FIG. Step s6
In steps 8 to s74, the same control as in steps s19 to s25 is performed. That is, the first-side copy mode is set, the maximum number of continuous copyable originals M == 5, the remainder 5 is calculated, the copied original copy number counter and the original copy number counter are sequentially cleared, and the first original is fed. Then, the document number counter is incremented by one, and the copy number counter is cleared.

In step s75, the first-side copy mode is checked, and the first-side copy mode is set to the specified first sheet tray (either of the sheet trays 35 and 36 in the sheet size designation routine separately performed by the copy control circuit 90). The transfer paper is supplied to the transfer position P side. In the copy control, nine copies of the first side are made for one document in accordance with a predetermined copy control, the copied transfer paper is reversed and placed on the intermediate tray 29, and the copy number counter is incremented by one. Be updated. In step s79, the number of sets B = 9
Steps s76 through s79 are repeated until the current copy number is equal to the current number of copies.
When the number is counted, the process proceeds to step s85. Step s8
From step 5, in step s96, the same control as in steps s32 to s43 is performed. That is, in step s85, the original is reversed and discharged, and if there is no end signal, the process proceeds to step s87, where the number of originals A> the maximum number of continuous copyable originals M (5)
Is checked, and if No, the next original (second sheet) is fed to the exposure position again in step s71, and step s7
Steps 2 to s86 are repeated to create nine copies of the first side of each of 2 to 5 originals.

Here, if the current number of originals exceeds the maximum number M (5) of continuous copyable originals before the end of original signal, the intermediate tray 29 can no longer accommodate transfer paper. The copy mode is interrupted, and the remaining uncopied originals (6 to 15 sheets) are fed in reverse by reverse ejection, and the first-side copy mode is checked.
The second-side copy mode is set, the presence or absence of a copied document is checked, and the counter of the number of copied documents is returned from zero to step s71. When the process reaches step s71 again, the document number counter is cleared, the second side of the first sheet is set on the exposure unit, the document number counter is incremented by 1, the copy number counter is cleared, and the first side copy mode is checked. And the second
Since the mode is the plane mode, steps s80 to s82 are reached.
Here, the transfer paper (copy of the first side of the first document) of the intermediate tray 29 is discharged to the finisher 34 by the number of copies B (9) by idle feeding. When the current number of copies reaches nine in the set number, the copy number counter is cleared and the process proceeds to step s76. Steps s76 to s7
At 9, control is performed to make a copy of the second side of the first document of the document table 41 using one of the transfer papers of the transfer paper trays 35 and 36, and the copy number counter is incremented by +1.
Steps s76 to s79 are repeated until the set number of copies B = 9 and the current copy number match, and the idle feed / second side copy mode is executed by the number of copies. If the determination is Yes, the process reaches step s85, the document is inverted, and the document end signal is checked.

If there is no end signal in step s86, it is checked whether the current number of originals exceeds the maximum number M (5) of continuously copyable originals.
86 is repeated to copy all of the nine copies of the second to fifth originals on the second side, and copy all the nine originals on the second side of the fifth original, and reach Yes at step s85. . At this point, the remaining uncopied originals (6 to 15 sheets) are fed in reverse by reverse discharge, and it is determined that the original is not in the first-side copy mode, and the process returns to step s89 to return to the first-side copy mode. Update to 5 cards. Next, since there is a copied document, the copied document is fed in reverse by reverse discharge.

Returning again to step s71, the same processing as that for the first to fifth sheets of the first and second surfaces is sequentially repeated.
The same process is sequentially repeated for 6 to 10 sheets of the first surface and the second surface, and 6 to 10 sheets of the first surface and the second
Make one-sided copies of 9 sides each. Further, originals 11 to 15
Even in the copying process of the first side of a sheet, 11
Nine copies of the first and second sides of the fifteenth sheet are copied one by nine. At this time, copying of the nine copies of the first side of the fifteenth original is completed, and the process reaches step s85. Flip to
Check the document end signal. Here, the end signal is input upon completion of the copy processing of the first side of the fifteenth document, and the process reaches step s95, checks the copy mode of the first side.
The side copy mode is set, and the flow advances to step s94 of Yes from the presence of the copied original, and the copy original (1 to 10 sheets) is fed in an empty manner. In steps s71 to s79, the second side of the eleventh sheet is set to the number of copies B = Nine copies are made, and the document is inverted and discharged to the document table 41 in step s85. Then, the document end signal is checked, and if there is no end signal, step s8
7, the number of originals A> the maximum number of continuous copyable originals M
(5 sheets) is checked, and the sheet is fed to the exposure position of the next original (the 12th sheet, second surface) again at step s72 from No, and steps s72 to s87 are repeated. Eventually,
When nine copies of 15 second-side copies are counted in step s79, the process proceeds to step s32, where the document is placed on the document table 4.
Then, the process proceeds to step s42 from the input of the document end signal, and the control ends because the mode is not the first-side copy mode.

As a result, as shown in FIG. 13, on the staple completion tray 52, each page of the first to fifteenth double-sided originals is sequentially copied as a single-sided copy in nine copies, ie, the first page of the first sheet is copied. 1st, 1st, 2nd, 2nd, 1st
, And the second, third, first, third, second,... Surfaces, and a total of 270 single-sided copies are obtained. It is assumed that the process has not reached the stack mode but has reached the step s44 in FIG. 18 as the duplex mode. Prior to reaching this, the number of originals A = 12 is placed on the original table 41, and the number of copies B = 2 is input.
The description will be given with reference to FIGS. 10 and 11 assuming that the maximum number of stored sheets in the intermediate tray C = 5.

First, in step s44, the copy number counter is cleared, and then the first-side copy mode is set.
The copied document number counter is cleared, and the document number counter is cleared, and the process reaches step s48. Here, the document feeding is started, and the document number counter is incremented by one to be updated. In step s50, it is first checked whether or not the first-side copy mode is set.
Transfer paper is supplied to the transfer position P side from one of the transfer sheets 5 and 36. In the copy control, one copy of the first side is created for each document in accordance with the predetermined copy control, and the copied transfer sheet is reversed and placed on the intermediate tray 29 to reach step s54.

In step s54, the document is placed on the document table 4
1 is inverted and discharged. Then, the document end signal is checked, and if there is no end signal, the process proceeds to step s56, where the number of documents A> the maximum number of intermediate trays C (5 sheets) is checked, and if No, the next document (the second sheet) is returned again in step s48. )
Are fed to the exposure position of Steps s49 to s5.
6 is repeated to make copies of the first side of the originals 2 to 5 one by one. Here, before the document end signal arrives,
When the current number of originals exceeds the intermediate tray maximum storage number C (5), the transfer paper cannot be stored in the intermediate tray 29 any more, so the first-side copy mode is interrupted and the remaining uncopied originals (6 to 12 sheets), and the first side copy mode is checked. If the answer is Yes, the process reaches the step s59.
The second-side copy mode is set, the presence or absence of a copied document is checked, it is determined that there is no copied document, and the process returns to step s47 of No.

When the process reaches step s47 again, the document number counter is cleared and the first document is fed (at this time, the document is inverted and the second side is set in the exposure section). Is incremented by 1, and the first-side copy mode is checked. Since the second-side mode is selected, the process reaches step s52, the inverted transfer sheet is supplied from the intermediate tray 29 to the transfer position P, and copy control is performed. This double-sided copy is sent to the finisher 34. Further, at step s54, the document is reversed and the document end signal is checked. The current number of documents intermediate tray if there is no end signal in step s54
-Check if the maximum number of sheets C (5 sheets) is exceeded,
Then, steps s48 to s56 are repeated again, and one copy of the second side of the fifth copy of the original is copied.
Reach 57. Here, the remaining uncopied originals (6 to 12
), The first-side copy mode is checked, and since it is now No, the process proceeds to step s60 to return to the first-side copy mode, and the number of copied originals is stored as five here. . That is, the number of originals 5 is set in the copied original number counter and updated. Next, since there is a copied original, the copied original (1 to 5 sheets) is fed in reverse by reverse discharge.

Returning again to step s47, the same processing as that for the first to fifth sheets of the first and second sheets is repeated sequentially.
The same process is sequentially repeated for 6 to 10 sheets of the first side and the second side, and both sides are copied. In addition, the original 11 and the first
In the side copying process, copying of one copy of the first side of the twelfth original is completed, the process reaches step s54, the original is inverted to the second side, and the original end signal is checked. Here, since the end signal is input upon completion of the copy processing of the first side of the twelfth original, the process reaches step s64 and checks the first side copy mode. Since it is Yes, the process reaches step s65 and the second side copy is performed. Set the mode, Y
es63, the flow advances to step s63, and the copied original (1 to 10
Sheet is fed, and one copy of the second side of the eleventh sheet is copied in steps s47 to s53, and the document is inverted and discharged to the document table 41 in step s54. Then, the document end signal is checked, and there is no end signal, and the process proceeds to step s56, where the number of documents A> the maximum number of sheets C (5 sheets) stored in the intermediate tray is checked. When the sheet is fed to the exposure position on the (second side), steps s49 to s53 are performed, and one double-sided copy having the second side of the twelfth original is created.
The process proceeds to 54, where the twelfth document is inverted and discharged to the document table 41, and the document end signal is inputted to step s.
The process proceeds from step 55 to s64, and it is determined that the first-side copy mode is not set, and the process reaches step s66. In this case, the number of set copies (= 2 × 1
It is checked whether 2) and the current number of copies are the same.
The second copy is created in the same manner as the first copy, and the number of set copies (= 2 × 1
If 2) matches the current number of copies of 24, the control ends with Yes.

As a result, as shown in FIG. 11, two copies of each of the first to twelfth originals (first and second surfaces) are stacked on the staple completion tray 52, one copy at a time. The Rukoto. It is assumed that the process has reached the step s97 of FIG. Prior to reaching this, the number of originals A = 12 is placed on the original table 41, and the number of copies B = 2 is input.
The description will be made with reference to FIGS. 14 and 15 assuming that the maximum number of stored sheets in the intermediate tray C = 5.

In steps s97 to s103, the same control as in steps s44 to s48 is performed. That is, the copy number counter is cleared, the first-side copy mode is set, the copied document number counter is cleared, the document number counter is cleared, document feeding is started, and the document number counter is updated by +1. . In step s103, it is checked whether the current mode is the first-side copy mode. If the current mode is the first-side copy mode, the transfer sheet is supplied to the transfer position P from one of the designated sheet feed trays 35 and 36. In the copy control, one copy of the first side is made for each document according to a predetermined copy control.
The copied transfer sheet is reversed and placed on the intermediate tray 29, and the process reaches step s107.

Here, the original is inverted and discharged to the original table 41. Then, the document end signal is checked, and if there is no end signal, the process proceeds to step s110, and the number of documents A> medium
The maximum number of sheets C (5 sheets) stored in the inter-tray is checked, and if No, the next document (second sheet) is fed to the exposure position again in step s101, and steps s101 to s110 are repeated to repeat 2 to 5 sheets of the original. Make a copy of the first side of the set. If the current number of originals exceeds the maximum number of intermediate trays C (5) before the end of original signal, transfer sheets cannot be further stored in the intermediate tray 29, and the first-side copy mode is interrupted. Then, the remaining uncopied originals (6 to 12 sheets) are fed in reverse by reverse discharge, and the first-side copy mode is checked. If Yes, the process reaches step s115, and the second-side copy mode is set. If there is no copied document, the process returns to step s100 of No.

In step s100, the document number counter is cleared again, the inverted first document is set in the exposure unit, the document number counter is incremented by 1, the first-side copy mode is checked, and the second-side Mode s10
4, the transfer paper (the first copy of the first side) inverted to the transfer position P side from the intermediate tray 29 is fed empty to the staple completion tray 52. In step s106, the designated paper feed tray (copy control circuit) One of the paper feed trays 35 and 36 is set in a paper feed size designation routine separately performed by the CPU 90.). In the copy control, a second copy of the first document is made in accordance with a predetermined copy control, and a double-sided copy, which is a copied transfer sheet, is sent to the finisher 34. Further, at step s108, the document is inverted and the document end signal is checked. If there is no end signal in step s109, it is checked whether the current number of originals exceeds the maximum number of intermediate trays C (5).
Step 110 is repeated to copy one copy of the second side of the fifth document, and the process reaches Step s111 with Yes. Here, the remaining uncopied originals (6 to 12 sheets) are idle-fed by reversing discharge and the first-side copy mode is checked. Since it is now No, the process returns to step s113 to return to the first-side copy mode, and the copied original is returned. Here, the number is stored as five. That is, the number of originals 5 is set in the copied original number counter and updated.
Next, since there is a copied manuscript, a copied manuscript (1 to 5 sheets)
Is fed by reverse discharge.

Returning again to step s100, the aforementioned 1
The same process is sequentially repeated for the first and second surfaces of 5 to 5 sheets, and the same process is sequentially repeated for the first and second surfaces of 6 to 10 sheets, and each one-sided copy of the first and second surfaces Are sequentially created one by one. That is, the transfer paper (the copied transfer paper on the first side of the 6th to 10th originals) of the intermediate tray 29 is discharged to the finisher 34 by idle feeding, and the second transfer of the 6th to 10th originals is performed.
The operation along the single-blank-feed / second-side copy mode of directly discharging the copied transfer sheet on the side to the finisher 34 is performed.

Further, in the copy processing of the first side of the 11th to 12th originals, copying of one copy of the first side of the twelfth original is completed, the process reaches step s108, and the original is reversed to the second side. Check the document end signal. Here, since the end signal is input upon completion of the copy processing of the first side of the twelfth original, step s118 is reached, the first side copy mode is checked, and since it is now Yes, step s119 is reached, and the second side copy is performed. Set the mode, Y
es 117, the copied original (1 to 1
0), and 1 in steps s100 to s108.
One copy of the second side of the first document is copied, and step s10
At step 8, the original is inverted and discharged to the original table 41. And
Check the original end signal, the process proceeds to step s110 without end signal, the number of documents A> maximum intermediate tray accommodating sheets
Check the number C (5), and go back to step s1 from No.
In step 01, the next original (the twelfth second surface) is fed to the exposure position, and steps s102 to s107 are performed.
When a single-sided copy of the second side of the twelfth original is made with transfer paper from the transfer paper tray, the process proceeds to step s108, where the twelfth original is inverted and discharged to the original table 41,
Then, the document end signal advances from step s109 to s118 from the input, and reaches step s120 assuming that the mode is not the first-side copy mode. Here, the number of sets (= 2 × 1) is set.
It is checked whether 2) and the current copy number match, and the current copy number is 12 and the process returns to step S98 on the No side again.
The second copy is created in the same manner as the first copy, and the number of set copies (= 2 × 1
If 2) matches the current number of copies of 24, the control ends with Yes.

As a result, as shown in FIG. 15, one copy of the first side and one copy of the second side of the first to twelfth originals are sequentially placed on the staple completion tray 52, one copy at a time. 24 sheets and 48 sheets are stacked in two copies. Each time the copy control is reached in the middle of such a copy control routine, the transfer paper discharge control as shown in FIG. 22 is executed. In this transfer sheet discharge control, the first
In the first-sided copying mode, it is determined whether or not all the transfer sheets are reversed, and then the sheets are discharged to the intermediate tray 29,
Return to the copy control routine.

On the other hand, at step p1, in the second-side copy mode, the process reaches step p4, and it is checked whether or not the mode is the double-sided single-sided mode. The sheet is discharged, and the process returns to the copy control routine. In step p4, in the double-sided single-sided mode, the process proceeds to step p5, where the designated paper feed tray information is taken in, the transfer paper supplied from one of the designated paper feed trays 35 and 36 is inverted and discharged to the finisher 34, and so on. Instead, the transfer paper on the first side copied from the intermediate tray is discharged to the finisher 34 without reversing, and the process returns to the copy control routine. Thus, in the duplex double-sided mode, the copy side of the first side is turned down (reversed), and the copy side of the second side is turned up (forward), and the page order is aligned. All copy faces can be aligned downward (reversed).

[0054]

[0055]

[0056]

As described above, the first invention divides a plurality of double-sided originals into the calculated maximum number of continuous copyable originals, and divides the original from the first one to the maximum continuous copyable original number of sheets. A copy of the first side of each original in the bundle of originals is made by transfer paper for each copy number, placed in an inverted position on the intermediate tray, and further, the single-sided copy paper of the intermediate tray is fed by the number of copy copies. Then, copies of the second side of each document from the first sheet up to the maximum number of continuous copies can be made by the number of copies using the transfer paper on the transfer paper tray, and the one-sided copy is output to the paper discharge tray. Then, the first and second single-sided copies of the first and second sides of each original of the divided original bundle from the next first sheet to the maximum number of continuously copyable originals are sequentially created by the number of copies. The operation of discharging these one-sided copies to the paper output tray is sequentially repeated. Since a single-sided copy can be returned, a single-sided copy of the first and second sides is intensively created by a plurality of copies for each divided double-sided document bundle in a double-sided single-sided copy in a stack mode in which a single-sided copy is created from a large number of double-sided originals. The operation can be repeated, a large number of single-sided copies can be obtained with good operability without being restricted by the maximum number of documents, and the productivity accompanying the copying operation is improved.

According to a second aspect of the present invention, a plurality of double-sided originals are stored in an intermediate tray.
Divided into each over a maximum storage number, this time of the intermediate tray from the first sheet
-The first of each original in the divided original bundle up to the maximum
One-sided copies are made one by one using transfer paper, placed on the intermediate tray in reverse, and the one-sided copy of the intermediate tray is discharged by idle feed .
A copy of the second side of each document up to the maximum capacity of the tray is made one by one using the transfer paper on the transfer paper tray, a one-sided copy is output to the output tray, and then the intermediate tray is started from the next first sheet.
-The first of each original in the divided original bundle up to the maximum
The operation of sequentially making a single-sided copy of the first side and the second side and sequentially discharging the sheets to the paper output tray is repeated to create a single-sided copy of the first copy, and this can be repeated for a plurality of copies. In a two-sided one-sided copy in the non-stack mode in which a one-sided copy is made from a two-sided original, an operation of making one copy of each of the first and second sides one by one for each divided two-sided document bundle can be repeated. A large number of single-sided copies can be obtained with good operability without restriction, and the productivity associated with the copying operation is improved.

[Brief description of the drawings]

FIG. 1 is a schematic overall configuration diagram of a copying machine employing a copy control device of the present invention.

FIG. 2 is a partial plan view of an operation panel of the copying machine shown in FIG.

FIG. 3 is a block diagram of a control system of the copying machine of FIG. 1;

FIG. 4 is a functional block diagram relating to a first example of a copy control circuit of the copying machine of FIG. 1;

FIG. 5 is a functional block diagram relating to a second example of the copy control circuit of the copying machine of FIG. 1;

FIG. 6 is a functional block diagram relating to a first invention in a copy control circuit of the copying machine of FIG. 1;

FIG. 7 is a functional block diagram relating to a second invention in the copy control circuit of the copying machine of FIG. 1;

FIG. 8 is a front explanatory view of a stack mode and a duplex mode according to a first example performed by the copying control device of the copying machine of FIG. 1;

9 is an explanatory rear view of the stack mode and the duplex mode according to the first example performed by the copying control device of the copying machine of FIG. 1;

FIG. 10 is a front explanatory view of a non-stack mode and a duplex double-sided mode according to a second example performed by the copy control device of the copying machine of FIG. 1;

11 is an explanatory rear view of the non-stack mode and the duplex mode according to the second example performed by the copying control device of the copying machine of FIG. 1;

12 is an explanatory front view of a stack mode and a double-sided and single-sided mode according to the first invention performed by the copying control device of the copying machine of FIG. 1;

FIG. 13 is an explanatory rear view of the stack mode and the double-sided single-sided mode according to the first invention performed by the copy control device of the copying machine of FIG. 1;

14 is a front explanatory view of a non-stack mode and a double-sided and single-sided mode according to a second invention performed by the copying control device of the copying machine of FIG. 1;

FIG. 15 is a rear explanatory view of the non-stack mode and the double-sided and single-sided mode according to the second invention performed by the copying control device of the copying machine of FIG. 1;

FIG. 16 is a front flowchart of a copy control routine performed by the copy control device of the copying machine shown in FIG. 1;

FIG. 17 is a flowchart of a stack mode and a duplex mode according to a first example of a copy control routine performed by the copy control device of the copying machine of FIG. 1;

FIG. 18 is a flowchart of a non-stack mode and a duplex mode according to a second example of a copy control routine performed by the copy control device of the copying machine of FIG. 1;

FIG. 19 is a partial flowchart of a stack mode and a double-sided and single-sided mode portion according to a first invention of a copy control routine performed by the copy control device of the copying machine of FIG. 1;

FIG. 20 is a flowchart showing the rest of the stack mode and double-sided and single-sided mode portions according to the first invention of the copy control routine performed by the copy control device of the copying machine of FIG. 1;

FIG. 21 is a flowchart of a non-stack mode and a double-sided and single-sided mode portion according to a second invention of a copy control routine performed by the copy control device of the copying machine of FIG. 1;

FIG. 22 is a flowchart of a transfer sheet discharge control routine performed by the copy control device of the copying machine of FIG. 1;

[Explanation of symbols] 1 Copier body 29 Intermediate tray 39 Recycled Document Automatic Feeder (RDH) 90 Copy control circuit A1 Maximum continuous copyable original document number calculation means A2 First-side original setting means A3 First-side copy means A4 Second surface initial position setting means A5 2nd-side original setting means A6 Second-side copy means A7 First surface initial position setting means A8 Number of copies check means F Feed position

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-66276 (JP, A) JP-A-59-77455 (JP, A) JP-A-61-186969 (JP, A) JP-A 63-66969 21655 (JP, A) JP-A-62-66273 (JP, A) JP-A-3-211566 (JP, A) JP-A-60-258564 (JP, A) (58) Fields studied (Int. ⁷ , DB name) G03G 15/00 G03G 21/00 G03G 21/14 B65H 83/00-85/00

Claims (2)

(57) [Claims] An original feeding means for feeding an original at a feed position of an original placing table to an exposure section; an automatic recycle original document feeder for returning the original in the exposure section to the original placing table via a recirculation path; A transfer unit that is equipped with document reversing means for reversing the recirculated document and sending it to the document mounting table, and in which a transfer sheet for transferring a visible image obtained from the document in the exposure unit by a transfer unit is accommodated The paper tray and the transfer paper once copied are received and stored from the transfer paper recirculation path, and the intermediate tray to be supplied to the transfer section again, and the transfer paper in the transfer paper recirculation path are selectively inverted and sent out. Inverting means, copy number input means for inputting the number of copies, copy mode means for inputting a mode for copying and discharging the number of copies for each page of the original, and a mode for making a one-sided copy from a double-sided original A two-sided single-sided mode input means for inputting Document counting means for counting the number of document feeds, and when a drive command is received, a visible image of the document reaching the exposure unit is transferred to a transfer sheet reaching the transfer unit according to a designated mode to create a copy. A copy control unit having a maximum number of intermediate copy trays that can be calculated by dividing the maximum number of sheets stored in the intermediate tray by the input number of copies. Means for calculating the number of continuously copyable originals, and setting the first side of each original from the current first copy to the maximum number of continuously copyable originals at the feed position of the original mounting table in accordance with the drive command. A first-side original setting means for inverting a copied original before this time and feeding the empty original through the recirculation path so as to be placed after the last original on the original placing table; Document setting method In response to the completion signal and the number of copies, the copy of the first side of the originals of the maximum number of continuously copyable originals on the original mounting table is copied by the transfer paper of the transfer paper tray in accordance with the input of the copy mode and the duplex simplex mode. A first-side copying means, which is prepared one by one and placed on the intermediate tray in an inverted manner, and, after exposing the current maximum number of continuously copyable originals to the original placement table after being exposed, the first-side copying means; In response to the control completion signal of the copying means, if there is a remaining document other than the current maximum number of continuously copyable originals on the document table, the document is inverted and stacked after the current maximum number of continuous copyable originals. The second-side initial position setting means and the first sheet from the current sheet to the maximum number of continuously copyable originals at the feed position of the document table in response to the control completion signal of the second-side initial position setting means. Two sides A second-side original setting means for inverting the copied originals before the present one so as to be set in an overlapping manner and feeding the originals after the last original on the original-mounting table; In response to the control completion signal of the means and the input of the copy mode and the one-sided copy mode for the number of copies, the transfer sheet of the intermediate tray is discharged by the number of copies to be skipped, and then the second side of the document on the document table is placed. And the second-side copy mode in which the number of copies is made by the number of copies from the transfer paper tray and discharged, is repeated by the value up to the current maximum number of continuously copyable originals.
In response to the control completion signal of the number of copies of the empty feed / second side copy means and the number of copies of the maximum number of consecutively copyable originals which are inverted and returned on the document table. Only when there are remaining originals other than the current maximum number of continuous copyable originals on the original platen, the remaining originals are inverted and stacked after the current maximum number of originals that can be continuously copied and the first side A copy control device comprising: a first surface initial position setting unit that issues a drive command to a document setting unit. 2. A document supply means for feeding a document at a feed position of a document table to an exposure section; an automatic recycle document feeder for returning a document in the exposure section to the document table via a recirculation path; A transfer unit that is equipped with document reversing means for reversing the recirculated document and sending it to the document mounting table, and in which a transfer sheet for transferring a visible image obtained from the document in the exposure unit by a transfer unit is accommodated The paper tray and the transfer paper once copied are received and stored from the transfer paper recirculation path, and the intermediate tray to be supplied to the transfer section again, and the transfer paper in the transfer paper recirculation path are selectively inverted and sent out. Inverting means, copy number input means for inputting the number of copies, double-sided single-sided mode input means for inputting a mode for making a single-sided copy from a double-sided original, document counting means for counting the number of fed sheets, and receiving a drive command The above exposure depending on the specified mode. A copy control unit for transferring a visible image of the document that has reached the copy unit to a transfer sheet that has reached the transfer unit to make a copy, wherein the copy control unit responds to the drive command. If there are copied originals before this time, the originals are reversed so that the first side of each original from the current one to the maximum number of sheets stored in the intermediate tray can be set at the feed position of the original mounting table. A first-side original setting unit for performing idle feeding via the recirculation path so as to be placed after the last original on the original mounting table; and a control completion signal of the first-side original setting unit and an input of a double-sided single-sided mode. Copies of the first side of the original up to the maximum number of sheets stored in the intermediate tray on the original mounting table are created by using the transfer paper of the transfer paper tray, and the inverted copy is placed on the intermediate tray. Original number of storage A first surface copy means for returning inverted on the document table after exposure to,
In response to the control completion signal of the first-side copying means, if there is any remaining document on the document table other than the current maximum number of intermediate trays, this is reversed after the current maximum number of documents on the intermediate tray. Means for setting the initial position of the second surface to be loaded, and the position of each original from the first sheet to the maximum number of sheets stored in the intermediate tray at the feed position of the original table in response to the control completion signal of the second surface initial position setting means. A second-side original setting means for inverting a copied original before this time so that the second side is set so as to be set thereon, and feeding the original so as to be placed after the last original on the original mounting table; In response to the control completion signal of the two-sided original setting means and the input of the two-sided single-sided mode, the transfer sheet of the intermediate tray is discharged by idle feeding, and then the copy of the second side of the original on the original mounting table is transferred to the transferer. Paper tray transfer paper Single sky Feed-to waste paper to create more
The single-sided feeding / second-side copy means, which repeats the second-side copy mode by the value of the current maximum number of sheets stored in the intermediate tray and reverses the originals up to the maximum number of sheets stored in the current intermediate tray onto the document table. Only when there is a remaining document other than the current maximum number of intermediate trays stored on the document table in response to the control completion signal of the single-single-feed / second-side copy means, the number of originals of the current maximum number of intermediate trays is reduced. A first-side initial position setting unit for loading the remaining originals in a reversed state and issuing a drive command to the first-side original setting unit;
A copy copy number check means for counting the number of copy copies this time in response to the control completion signal of the surface initial position setting means, and issuing a drive command to the first surface document setting means until the current copy number reaches the copy number command value; A copy control device comprising: