JP3489016B2 - Transfer paper post-processing equipment for image forming machines - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying machine and a printer.
Etc. attached to the main body of the image forming machine,
After stapling the transferred transfer paper, discharge it
The present invention relates to a transfer paper post-processing device of an image forming machine. 2. Description of the Related Art In recent years, an image forming machine has
The transfer paper on which the images have been transferred is aligned for each copy corresponding to the number of originals.
And then perform stapling and then discharge to the output tray
A transfer paper post-processing apparatus has been proposed.
-144370, JP-A-5-238604
Etc. SUMMARY OF THE INVENTION [0003]
The transferred transfer paper bundle is discharged to the discharge tray and
When the staples overlap, the staples
Only the processed side is extremely bulky, so the stack capacity is
Decrease. In addition, the stack of transfer paper discharged to the discharge tray
Detects the amount and lowers the output tray in response to an increase in the load
The load detection unit is configured to
If it is other than the iple section, the bulk of the staple section is detected.
The staple part blocks the outlet and causes a jam.
Become. On the other hand, a transfer paper post-processing device of an image forming machine includes:
In order to sort each copy when not stapling
At the same time, the output tray goes straight to the transfer paper
In the direction in which each part is shifted by a predetermined amount.
Also equipped with tray shift means that can be stacked in a state
You. Therefore, when performing staple processing,
Activating the step allows the stapled side
The problem of excessive bulkiness can be solved.
However, the shift discharge basically depends on the consistency of the transfer paper.
Is stapled and sorted for each part.
If possible, avoid shifting emissions as much as possible,
The condition where only the staple side is extremely bulky
It is desirable to discharge the shift only when the discharge occurs. [0005] The present invention has been made in view of the above points.
The main technical issue is the staple side
Is extremely bulky, that is, the number of staples
If the number of copies to be stapled with a fixed number or less
After the transfer paper of the image forming machine which is sometimes shifted and discharged
An object of the present invention is to provide a processing device. Means for Solving the Problems The above main technical problems are solved.
To achieve this, according to the present invention, from the image forming machine body
A transfer paper receiving stand for receiving the transferred transfer paper, and the transfer paper
Alignment means for aligning the transfer paper received in the cradle;
Stay on a plurality of transfer papers aligned by the alignment means.
A stapler to be subjected to a pulling process, and
Transfer paper pushing to push out the stapled copy paper bundle
Ejecting means and the transfer paper pushing means.
And a discharge tray on which the transfer paper bundle is placed.
Shift a predetermined amount in the direction perpendicular to the
Post-processing device of an image forming machine comprising
Set the number of transfer sheets to be stapled.
Staple number setting means and the number of copies to be stapled
Means for setting the number of staple copies,
From the number setting means and the staple copy number setting means.
Transfer paper pushing means and the tray shift
Control means for controlling the operation of the control means.
Means for setting the number of staples and setting the number of staples
The number of staples is determined based on the setting signal from the
When the number of staples is equal to or less than the
The copy paper bundle subjected to the taple processing is transferred to the transfer paper pushing means.
Therefore, every time the sheet is pushed out, the tray shift means is operated to discharge the sheet.
Shifting the output tray.
A transfer paper post-processing device is provided. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described.
1 shows a preferred embodiment of a transfer paper post-processing device of an image forming machine.
This will be described in more detail with reference to the accompanying drawings. FIG. 1 shows a post-processing device constructed according to the present invention.
Configuration diagram showing an embodiment of an image forming machine equipped with a printer
It is. The illustrated image forming machine 2 is an electrostatic copying machine,
The copying machine main body 4 and the circulation mounted on the upper surface of the copying machine main body 4
Automatic document feeder 6 and transfer paper discharge side of copier body 4
And a transfer paper post-processing device 8 disposed in the printer. Duplicate
The copying machine body 4 has a well-known copying function.
The photoconductor drum disposed in the main body 4 and on the copier main body 4
Exposes the document positioned at the exposure position specified on the
Exposure device for forming an electrostatic latent image on the surface of the photosensitive drum
Formed on the surface of the photosensitive drum by the exposure device.
Device for developing an electrostatic latent image into a toner image, and the developing device
Toner image developed on the transfer paper at the transfer unit
Transfer device for transferring, the transfer device
Fixing device for fixing the transferred toner image, transfer paper to the transfer section
Transfer paper supply device that supplies
Transfer paper discharging device that discharges through the
You. Operation means are provided on the upper surface of the copying machine body 4.
This operation means has a copy start key for instructing the start of copying.
Key, staple setting key to specify stapling
-Specify the number of staples equivalent to the number of originals.
Key for setting the number of copies, the number of copies, that is, stapling
A staple copy number setting key to specify the number of copies is provided.
I have. Further, the copying machine body 4 receives signals from the above setting keys and the like.
Control means for controlling the operation of each of the above devices based on the
are doing. The circulating automatic document feeder 6 is also known.
Can be specified on the upper surface of the copier body 4 in order.
To the exposed position. The post-processing device 8 performs the copying
The toner image sent from the outlet 41 of the machine body 4 is transferred.
Received transfer paper, and step by
It has a function to discharge after applying iple processing.
This will be described in detail with reference to FIGS. The post-processing device 8 includes a box-shaped housing 10.
I have it. The copier body 4 is provided in the housing 10.
Transfer paper inlet 12 is provided at a position facing discharge port 41
And transferred to the opposite side of the transfer paper carry-in port 12.
A copying paper outlet 14 is provided. This housing 10
Inside, between the transfer paper inlet 12 and the transfer paper outlet 14
A first transport path 16 extending from the first transport path 16
A second transfer path 18 that branches and extends downward is provided.
You. A drive roller 20 is provided at one end of the first transport path 16.
1 and a receiving roller pair 20 composed of a driven roller 202
And is provided at an intermediate portion of the first transport path 16.
A transport roller including a driving roller 221 and a driven roller 222
A roller pair 22 is provided. The first transport path 16
Downstream of the transfer roller pair 22 in the transfer paper transfer direction.
The transfer paper detection switch SW1 for detecting the transfer paper to be fed is
It is arranged. The other end of the first transport path 16, that is,
A drive roller is provided upstream of the transfer paper discharge port 14 in the transfer paper transport direction.
Roller composed of a roller 241 and a pressing roller 242
A pair 24 is provided. The holding roller 242 is the shaft 26
L-shaped support rail with the intermediate part rotatably supported by
The bar 28 is rotatably mounted on one end. Support lever
-28, the other end of the pressing spring is fixed at one end to the fixed part
30 is locked at the other end, and the support lever 28 is
In FIG.
Biased to rotate in the direction. Also, support lever 2
8 is connected to a plunger 321 of the solenoid 32.
Is tied. When this solenoid 32 is deenergized
At this time, the support lever is actuated by the action of the pressing spring 30.
28 and the pressing roller 242 are in the operation position indicated by the solid line.
Once positioned and the solenoid 32 is energized, the support
The bar 28 and the pressing roller 242 are connected to the pressing spring 30.
It is positioned at the retracted position shown by the two-dot chain line against the spring force.
You. At the lower end of the second transport path 18, a drive
Post-treatment discharge consisting of roller 341 and driven roller 342
A roller pair 34 is provided. The first transport path 16
And each of the roller pairs disposed on the second conveying path 18.
Each drive roller is operatively connected to a drive mechanism (not shown) by
It is rotationally driven in the directions indicated by arrows. In addition, the second conveyance
In the transfer paper transport direction from the post-processing discharge roller pair 34 of the path 18
On the downstream side, a transfer paper detection switch that detects the transfer paper being conveyed
Switch SW2 is provided. The first transport path 16
A switching claw 36 is provided at a branch point from the second transport path 18.
Is established. The switching claw 36 is rotatably provided.
The first shaft 38 is mounted on the shaft 38 and is shown by a solid line in FIG.
It is actuated to a position and a second position indicated by a two-dot chain line. Switch
One end of an operating lever 40 is attached to a shaft 38 on which a pawl 36 is mounted.
A solenoid is mounted on the other end of the operating lever 40.
42 plungers 421 are connected. This Soleno
When the id 42 is deenergized, the solenoid 42
Plunger by the spring force of the built-in return spring 422
421 is pushed out, and the switching claw 36 is indicated by a solid line.
In a first position. Also, solenoid
42 is urged against the spring force of the return spring 422
The plunger 421 is sucked, and the switching claw 36 has a two-dot chain.
It is actuated to a second position indicated by the line. The first transport path 16 and the second transport path
A transfer paper receiving table 44 is disposed below the transfer sheet 18. This
The transfer paper receiving table 44 is located above the second conveyance path 18 from below.
It is disposed to be inclined upward toward the discharge roller pair 24.
ing. The rear end of the transfer paper tray 44 (lower right in FIG. 2)
At the end), a stopper 46 is provided. Transfer paper tray
An aligning means 50 is provided at an intermediate portion of the table 44 in the document conveying direction.
Have been. The matching means 50 will be described with reference to FIG.
I will tell. The aligning means 50 is located at a position as a transfer paper aligning member.
It comprises a decision plate 52 and a width shifting means 54. position
The determining plate 52 is located on the front side in the width direction of the transfer paper receiving table 44 (FIG. 3).
Is mounted on the upper surface of the transfer paper receiving base 44).
I have. The width shifting means 54 faces the positioning plate 52
In the width direction along the upper surface of the transfer paper receiving table 44.
Width-adjusting plate as a transfer paper alignment member configured to be movable
541. The rack 54 is provided on the width shift plate 541.
2 is mounted, and a pinion gear
543 are engaged. Pinion gear 543 is coaxial
Gear 544 mounted on and meshing engagement with the gear 544
To the servo motor 546 (M1) via the gear 545
Power transmission is connected. This servo motor 546 (M1)
The rotation of the rotary encoder or frequency generator
The amount detector 547 (FG1) is mounted
The quantity detector 547 (FG1) is a pulse signal which is a detection signal.
To the control means described later. Note that, in the illustrated embodiment,
In other words, the servo motor 5
46 (M1), but using a stepping motor
May be. The width shifting means 54 configured as described above includes:
Retreat position detecting means for detecting the retreat position of the width shift plate 541
55 are provided. The retreat position detecting means 55 is provided with the rack
The light-shielding plate 551 attached to the 542
Light emitting element 5 disposed at a position corresponding to light shielding plate 551
53 and a light receiving element 554 (SW
6). The width shifting means 54 constructed as described above
Is a retreat position where the width shift plate 541 is indicated by a solid line in FIG.
To drive the servo motor 546 (M1) forward
Gear 545, gear 544, pinion gear 543 and
And the width approaching plate 541 via a two-dot chain line
To the transfer position shown in FIG.
The transferred transfer paper P is aligned. Note that the width adjustment position is not used.
Varies depending on the size of the transfer paper
The amount of movement of the stopper plate 541 is set in advance in accordance with the size of the transfer paper.
The rotation amount of the servo motor 546 (M1) is determined.
Then, when the width shift plate 541 is moved to the width shift position,
The control means described later rotates the servomotor 546 (M1) in reverse.
Driving moves the width shift plate 541 backward as shown by a solid line in FIG.
Actuate position. The width shift plate 541 reaches the retracted position
And the light shielding plate 551 includes the light emitting element 553 and the light receiving element 55.
4 and intercepts the light beam.
The control means described later is based on the servo motor 546 (M
Stop the operation of 1). In this way, the matching means 50
Servo motor 546 (M1) for forward drive and reverse drive
By performing the control, the transfer paper alignment processing is performed. Above the transfer paper receiving table 44, the first
And is conveyed onto the transfer paper receiving table 44 through the second conveyance path 18.
Transfer paper, the rear end of which touches the stopper 46
A positioning roller 56 for transporting the sheet is provided. Rank
The positioning roller 56 is a driving roller of the transport roller pair 22.
Gear 221 and the timing belt 58
ing. The positioning roller 56 is not shown.
The retracted position shown by the solid line in FIG.
It is configured to be positioned at the operation position indicated by the two-dot chain line.
Have been. That is, the positioning roller 56 is used for the second transport.
The transfer paper conveyed through the feeding path 18 is transferred to a transfer paper receiving table 44.
Evacuation position indicated by a solid line in FIG.
And receives the transfer paper P on the transfer paper receiving table 44
Once positioned, position it in the position indicated by the two-dot chain line in FIG.
Can be The positioning roller 56 is positioned at the operation position.
Then, it acts on the transfer paper, and directs the transfer paper toward the stopper 46.
Move. In addition, the positioning roller 56 is moved to the operation position.
After a certain period of time has passed since positioning,
It is configured to be positioned. The description will be continued with reference to FIGS. 2 and 3.
At the rear end of the transfer paper receiving table 44 in the width direction.
The stapler 60 is provided at a position corresponding to the side.
You. In addition, the transfer paper tray 44
Copy paper pushing means 62 is provided. Illustrated embodiment
The transfer paper pushing means 62 in the state is the transfer paper receiving table 44.
For extruding the upper transfer paper toward the transfer paper outlet 14
The pushing members 621 and 621, and the pushing members 62
1 and 621 are indicated by solid lines in FIG.
And move it between the pushing position shown by the two-dot chain line.
And a pushing member operating means 622. Push
The delivery members 621 and 621 project upward from the transfer paper receiving table 44.
And is formed on the transfer paper receiving stand 44.
It moves along the guide grooves 441, 441.
You. The pushing member operating means 622 includes a driving pulley 623.
And a predetermined distance from the driving pulley 623.
Driven pulley 624, the driving pulley 623 and the driven pulley
The pushing member 621 wound around the
Equipped with an endless timing belt 625 to which the 621 is attached.
I have. The drive pulley 623 is a coaxially mounted pulley.
Tool 626, timing belt 627, pulley 628
Transmission-connected to the servomotor 629 (M2)
You. In the illustrated embodiment, the extruded portion
Servo motor 629 as a drive source for material actuation means 622
(M2) is illustrated, but a normal electric motor
Data may be used. The transfer paper pushing hand constructed as described above.
The step 62 is such that the pushing members 621 and 621 are
From the state of the retracted position shown by the solid line, the servo motor 629
By driving the (M2) forward, the timing belt
627 is moved in the direction indicated by arrow 625A,
Extruding member 62 attached to imming belt 627
1 and 621 are moved to the extrusion position indicated by the two-dot chain line.
As a result, the transfer paper on the transfer paper receiving tray 44 is discharged from the transfer paper tray.
It is extruded toward the outlet 14. The above timing
On the lower side of the belt 627, the timing belt 627
Therefore, the pushing members 621 and 621 that are activated
Extruded member position for detecting the retracted position and the extruded position
Position detection sensors SW3 and SW4 are provided. Figure
The transfer paper pushing means 62 in the embodiment shown in FIG.
From the state shown by, the servo mode is
629 (M2) is driven to rotate forward, and the pushing member 62
1 and 621 reach the pushing position, and the position of the pushing member is detected.
When the output sensor SW4 is turned ON, the control means
629 (M2) is driven to rotate in the reverse direction. Soshi
Then, the servo motor 629 (M2) is driven in the reverse direction,
When the extension members 621 and 621 reach the retracted position,
When the material position detection sensor SW3 is turned on, the control means
The motor 629 (M2) is stopped.
As described above, the transfer paper pushing means 62 includes the servo motor 6
29 (M2) for forward rotation drive and reverse rotation drive control.
Then, a transfer paper extruding process is performed. The transfer paper receiver
On the upstream side of the ejection roller pair 24 of the gantry 44, the transfer
Detecting transfer paper extruded by paper extruding means 62
A transfer paper detection switch SW5 is provided. The roll formed on the box-shaped housing 10
The copy paper discharge port 14 is provided with the paper discharged from the transfer paper discharge port 14.
Transfer paper discharge tray device 64 for placing the transfer paper to be placed is provided.
Have been. The transfer paper discharge tray device 64 has a discharge tray.
And a lift 66 for moving the discharge tray 66 up and down.
Lowering means 68 (see FIGS. 4 and 5) and discharge tray 66
Is shifted a predetermined distance in the direction orthogonal to the transfer discharge direction.
Tray shift means 70 (see FIGS. 4 and 6)
Is provided. The elevating means 68 includes an elevating frame 681.
It has. The lifting roller 681 has a shift roller 6
82 and 682 are attached, and a roller 68 for this shift is provided.
Tray mounting base with discharge tray 66 mounted on 2,682
683 are placed. In addition, the lifting frame 681
A pair of lifting rollers 684, 684 are attached to both ends, respectively.
The pair of lifting rollers 684 and 694 are
Guide rails 16 provided on the jing 10
It is arranged separately. In addition, it is arranged in the guide rail 16.
One pair of the lifting rollers 684 has one of the rollers 684a.
It is arranged in contact with 16a on the front wall of the guide rail 16,
The other roller 684b is attached to the rear wall of the guide rail 16 by 16b.
It is arranged in contact with. Therefore, a pair of lifting rollers
The lifting frame 681 to which the 684 and 694 are attached
Smooth without play on the drains 16
Can be moved up and down. In addition, guide rail 1
The lifting rack 685 extending in the up-down direction is included in 6, 16;
685 are mounted respectively. Also, the lifting frame
A rotating shaft 686 is rotatably mounted on the 681.
The lifting rack 68 is provided at both ends of the rotating shaft 686.
Gears 687 and 6 respectively meshingly engaged with the gears 5 and 685
87 are mounted respectively. In addition, the back side of the rotating shaft 686
A pulley 688 is attached to the end (upper side in FIG. 4).
The pulley 688 is connected to the timing belt 689 and
Motor 691 (M3) via the pulley and pulley 690
Transmission connection. This servo motor 691 (M
3) includes a rotary encoder or a frequency generator, etc.
A rotation amount detector 692 (FG2) is mounted.
The rotation amount detector 692 (FG2) is a pulse which is a detection signal.
The signal is sent to control means described later. The illustrated embodiment
In the above, a servo motor is
691 (M3), but using a stepping motor
It may be. The elevating means 68 configured as described above
When the servo motor 691 (M3) is driven forward, the drive
The power is the pulley 690, the timing belt 689, and the
Transmission to pinion gears 687, 687 via rolling shaft 686
And the pinion gears 687, 687 are indicated by arrows 687A.
Roll on the lifting racks 685 and 685 while rotating in the
The lifting frame 681 rises by moving,
The discharge tray 66 placed on the lifting frame 681
Is raised. Also, the servo motor 691 (M
When 3) is driven in reverse, the pinion gears 687, 687
While rotating in the direction indicated by arrow 687B.
85, 685 so that the lifting frame 68
1 is lowered, and thus is placed on the lifting frame 681.
The discharged tray 66 is lowered. In addition,
The transfer paper discharge portion of the printer 10 is discharged onto a discharge tray 66.
Transfer paper loading amount detection means for detecting the amount of transfer paper loaded
A stage 72 (SW7) is provided. This transfer paper loading capacity
The detecting means 72 (SW7) is provided at the discharge side end of the housing 10.
Light-emitting element and light-receiving element
Are transferred onto the discharge tray 66 and transferred.
This signal will be described later when the paper blocks the light from the light emitting element
Send to control means. Then, the control means to be described later
Transfer paper loaded on the output tray 66 based on the
Is determined to have reached the predetermined amount, and the servo
The motor 691 (M3) is driven to rotate in the reverse direction to raise and lower the frame 681.
Is lowered by a predetermined amount. Next, the tray shift means 70 will be described with reference to FIG.
This will be described with reference to FIGS. Tray shift means shown
Reference numeral 70 denotes the tray mounting table 683 in the width direction, that is, transfer.
A shift installed in a direction perpendicular to the paper discharge direction
Rack 701 is provided. Meanwhile, the lifting frame
681 includes a pinion that meshes with the shift rack 701.
An on gear 702 is rotatably mounted. This pini
The ON gear 702 is rotatably mounted on the lifting frame 681.
Gears 703 and 704 and a driving gear 705
And connected to the servo motor 706 (M4)
You. This servomotor 706 (M4) has a rotary
Rotation amount detector 707 such as encoder or frequency generator
(FG3) is mounted, and the rotation amount detector 707
(FG3) controls a pulse signal, which is a detection signal, to be described later.
Send to means. In the illustrated embodiment, the tray
Servo motor 706 (M
Although 4) has been exemplified, a stepping motor may be used.
No. Tray shift means constructed as described above
70 drives the servo motor 706 (M4) to rotate forward.
And the driving force is the driving gear 705, the gear 704 and the teeth.
The power is transmitted to the pinion gear 702 via the
Turn ON gear 702 in the direction indicated by arrow 702A.
Can be Therefore, the shift rack 701 is shown in FIG.
The shift tray 701 is moved downward, and the shift rack 701 is mounted.
The exit tray 66 is located below the elevating frame 681, that is, in the front.
Shifted to the side. Also, the servo motor 706 (M4)
When the pinion gear 702 is driven in reverse,
02B in the direction indicated by
The rack 701 is moved upward in FIG. others
The discharge tray 66 on which the shift rack 701 is mounted
Is shifted upward on the lifting frame 681, that is,
You. Note that the discharge tray 66 during the tray shift is
Shift amount is the rotation amount of the servo motor 706 (M4).
Therefore, it is controlled. That is, the servo mode
The rotation amount detector 707 (F
G3) sends the detection signal to control means described later,
When the signal from the rotation amount detector 707 (FG3) is predetermined
When the amount is reached, the electric motor 706 is stopped. in this way
The tray shift means 70 includes a servo motor 706 (M4)
By controlling the forward rotation drive and reverse rotation drive, the tray
Perform shift processing. The post-processing device 8 shown in FIG.
Step 100 is provided. The control means 100 is a micro
Control program that is configured by a computer
Central processing unit (CPU) 101 that performs arithmetic processing according to
And a read-on memory (RO) for storing a control program
M) 102 and a readable and writable
Random access memory (RAM) 103 and timer 10
4 (T), counter 105, and input interface
106 and an output interface 107
You. The input interface of the control means 100 thus configured
The transfer paper detection switch SW
1. Transfer paper detection switch SW2, push-out member position detection
Sensors SW3 and SW4, transfer paper detection switch SW
5. Detector 552 (SW6), transfer paper loading amount detection means 7
2 (SW7), rotation amount detector 547 (FG1) rotation amount detection
Dispenser 692 (FG2), rotation amount detector 707 (FG3)
And the like, and the output interface 1
07 to the solenoids 32 (SOL1), 42 (SO
L1), servomotors 546 (M1), 629 (M
2), 691 (M3), 706 (M4), stapler
A control signal is output to 60 or the like. The control means 100
Is connected to the control means 400 of the copying machine body 4,
Control signals are also exchanged between the two. Copy
The control means 400 of the machine body 2 is provided with the operation means.
Copy start key 401 for specifying stapling
Staple setting key 402, staple sheet for one original
Key 403 for specifying the number of copies, the number of copies
That is, a staple copy number setting key for specifying the number of staple copies
Copy information is input from 404 or the like. Post-processing of the image forming machine according to the illustrated embodiment
The device is configured as described above.
Referring also to the flowcharts shown in FIGS.
explain. The flowcharts shown in FIGS.
Is a stapling process using the stapling setting key 402
Indicates the processing procedure of the specified staple processing mode.
It is. The control means 400 of the copier main body 2
When the pull process is specified, the control unit 100
The processing according to the processing mode is started. And control means 1
00 is determined by the control means 400 of the copying machine main body 4 as the number of originals.
Receives a signal specifying the corresponding number of staples (NS)
Then (step S1), the random access memory (R
AM) 103 to set the number of staples (NS)
(Step S2). Next, the control means 100 executes step S
3, the control section 400 of the copying machine main body 4
Receiving the signal designating the number, that is, the number of staples (NT).
Then, the random access memory (RAM) 103
The number of copies (NT) is set (step S4). This
And the number of staples (NS) and stapling
When the control unit 100 receives the number of copies (NT),
Proceeding to step S5, the staple number (NS) is a predetermined number.
Number (NA) or less, check the number of staples
If (NS) is greater than the predetermined number (NA), the
Proceeding to step S25, the number of staples (NS) is predetermined
If the number is equal to or less than the number (NA), the process proceeds to step S6,
Check whether the number of copies (NT) is equal to or greater than the predetermined number (NB).
Click. In step S6, the control means 100
If the number of copies (NT) is smaller than the predetermined number of copies (NB),
To step S25, where the number of copies (NT) is
If the number is equal to or greater than the number of copies (NB), the process proceeds to step S7,
Waits for a copy start signal from the copying machine body 4 and outputs the copy start signal.
If received, the process proceeds to step S8 to execute a start process.
You. The start processing in step S8 is performed by, for example,
The drive roller of the feed roller pair is driven to rotate, and the solenoid 42 is driven.
In the second position shown by the two-dot chain line
Position. Execute the start processing in step S8.
If executed, the control means 100 proceeds to step S9.
Then, the counter 105 for counting the number of processed sheets is cleared. Thereafter, the copying operation is performed in the copying machine body 4.
Is performed, and the transfer paper on which the predetermined image is transferred is
4 to the transfer paper inlet 12 of the post-processing device 8 from the outlet 41 of
The transfer paper that has been introduced and passed through the receiving roller pair 20 is cut.
The sheet is guided by the replacement claw 36 and transported to the second transport path 18.
Then, the paper is discharged to the transfer paper receiving base 44. At this time, the control hand
In step 100, the transfer paper detection switch SW2 is turned ON, and thereafter,
It is checked whether it has been turned off (steps S10 and
Step S11), the transfer paper passes through the second transport path 18
Check if it is. Step S10 and step S
In step 11, the transfer paper detection switch SW2 is turned ON and O
If the FF is confirmed, the control means 100 proceeds to step S1.
Proceeding to 2, the timer 104 (T) is set to a predetermined set time T1.
At step S13.
"1" is added to the number of processed sheets (NC). Note that the above steps
The set time T1 in step S12 is such that the trailing edge of the transfer paper rolls.
After passing through the paper detection switch SW2, the transfer paper tray 4
4 is set to the time required to be accepted
You. Next, the control means 100 proceeds to step S14.
To determine whether the transfer paper detection switch SW2 is turned off.
Whether or not the elapsed time TS has reached the set time T1
Check that the elapsed time TS reaches the set time T1
If not, wait for the elapsed time TS to reach the set time T1.
Is reached, the process proceeds to step S15, where the transfer paper position is set.
Execute the backup process. The transfer paper positioning process is
The roller 56 to the operating position indicated by the two-dot chain line in FIG.
The transfer paper received in the transfer paper receiving tray 44 is positioned.
It moves toward the stopper 46. And after a predetermined time
If the transfer paper has passed, the rear end of the transfer paper has contacted the stopper 46.
And the positioning roller 56 is indicated by a solid line in FIG.
At the indicated evacuation position. In this way, the transfer paper position
After executing the mounting process, the control unit 100 proceeds to step S1.
Proceeding to 6, the transfer paper alignment processing is executed. Transfer paper alignment
The reason is that, as described above, the width shifting device 5 in the alignment means 50 is used.
No. 4 servo motor 546 (M1) is driven to rotate forward to adjust the width.
The plate 541 is moved to the width shift position indicated by the two-dot chain line,
The transfer paper on the receiving table 44 is aligned. And control hands
The stage 100 drives the servo motor 546 (M1) in the reverse direction.
The retracted position shown by the solid line in FIG.
To work. The transfer paper alignment process is executed as described above.
If so, the control means 100 proceeds to step S17,
Whether the number of processed sheets (NC) has reached the number of staples (NS)
Check whether or not the number of sheets processed (NC) is the number of staples
If (NS) has not been reached, proceed to step S10.
Steps S10 to S16 are repeated.
Return and execute. In step S17, the number of processed sheets (N
If C) reaches the number of staples (NS), the control
Step 100 proceeds to step S18 to count the number of processed sheets.
Clears the counter 105, and proceeds to step S19.
Execute stapling processing. Staple processing is performed on transfer paper
A predetermined stapler positioned at a predetermined position of the cradle 44
Stapler 60 on transfer paper with the number of sheets (NS)
Move and do. In step S19, staple processing is performed.
If executed, the control means 100 proceeds to step S20.
Then, the transfer paper pushing process is executed. Step S20
Transfer paper extruding process in
2 servo motor 629 (M2) is driven forward and pushed out
Dowel members 621, 621 operate in the direction indicated by arrow 625A
Then, the transfer stapled on the transfer paper receiving tray 44
The sheet bundle is pushed out toward the transfer sheet discharge port 14. Note that this
When the pressing roller 242 of the discharge roller pair 24 is
In the retreat position shown by the two-dot chain line,
The front end of the extruded transfer paper bundle is the transfer paper detection switch SW
5 (the front end of the transfer paper bundle is
The time it takes to reach LA vs. 24)
Position. The pressing roller 242 is actually
When positioned at the operating position shown by the line, the discharge roller pair 2
4 by the pushing members 621 and 621.
The discharged transfer paper bundle is discharged from the transfer paper discharge port 14 to a discharge tray.
It is discharged to b. The pushing members 621 and 621 are
In 2, the extruded position indicated by the two-dot chain line
When the member position detection sensor SW4 is turned on, the control means 1
00 drives the servo motor 629 (M2) in the reverse direction,
The extension members 621, 621 are operated in the direction indicated by the arrow 625B.
Move. Then, the pushing members 621, 621 are shown in FIG.
At the retreat position indicated by the solid line, and
When the output sensor SW3 is turned on, the control means 100
The motor 629 (M2) is stopped. As described above, the transfer paper pushing process is performed.
The executed and stapled transfer paper bundle is placed in the output tray 6.
6, the control means 100 proceeds to step S2.
Proceeding to 1, the tray shift process is executed. Step S
The tray shift processing in 21 is performed by the tray shift means 7
0 servo motor 706 (M4) is first driven to rotate forward,
The output tray 66 is shifted by a predetermined amount to the near side. This
The transfer paper P discharged to the discharge tray 66 is shown in FIG.
And is positioned at the position indicated by the two-dot chain line. The following
When the transfer paper bundle is discharged to the discharge tray 66, the control
The stage 100 drives the servo motor 706 (M4) in the reverse direction.
The discharge tray 66 is shifted by a predetermined amount to the back side. This
The transfer paper P discharged to the discharge tray 66 is shown in FIG.
And is positioned at the position indicated by the dashed line. in this way
Then, if the tray shift process is executed, the control unit 1
00 proceeds to step S22, where the counter 105
"1" is added to the number of copies (ND). And control means 10
0 proceeds to step S23, where the number of copies (ND) is
Check if the number of copies (NT) has been reached and process
The number of copies (ND) must not reach the number of staples (NT)
If so, the process proceeds to step S10, and steps S10 to S10 are performed.
Each operation of step S22 is repeatedly executed. Steps
In S23, the number of copies to be processed (ND) is changed to the number of staples (N
If T) has been reached, the control means 100 proceeds to step S24.
To clear the counter 105 that counts the number of copies processed
And exit. As described above, the number of staples (NS)
Is less than the specified number (NA) and the number of staples (NT)
When the number of copies is equal to or more than the fixed number (NB), that is, discharge to the discharge tray 66
Stapled transfer paper bundles are stacked
And the condition that only the staple side is extremely bulky
Tray shift processing is performed when the
The transfer paper bundle subjected to iple processing is shifted alternately in the width direction.
Are alternately stacked on the output tray 66. Therefore,
The stapled roll discharged onto the discharge tray 66
The stapled portion of the copy paper bundle must overlap
There is no, so it will not be extremely bulky. Next, step S5 and step S5 are performed.
6, the number of staples (NS) is equal to the predetermined number (N
A) When the number of staples (NT) is more than
If the number is smaller than the number of copies (NB),
The stapled transfer paper bundle to be discharged is stacked
Conditions where the stapled side is not extremely bulky
The processing in the case where are all completed will be described. That is,
In steps S5 and S6, the stay
When the number of pulls (NS) is larger than the predetermined number (NA) and
And the number of staples (NT) is less than the predetermined number (NB)
If not, the control means 100 proceeds to step S25,
Steps S25 to S41 are executed. this house
Steps S25 to S38 are the same as steps S25 to S38.
Processing similar to that of steps 7 to S20 is executed. Soshi
Transfer paper stapled on the transfer paper receiving tray 44
The bundle of transfer paper pushing means 62 and the discharge roller pair 24
After discharging to the discharge tray 66 by the action,
The control means 100 does not execute the tray shift process
Proceeding to step S39, the number of copies (N
D) is incremented by "1", and the process proceeds to step S40.
Has the number of copies (ND) reached the number of staples (NT)?
Check whether the number of processed copies (ND) is the number of staples
If (NT) has not been reached, proceed to step S28.
Then, the operations of steps S28 to S39 are repeated.
Execute again. In step S40, the number of copies (N
If D) reaches the number of staples (NT), the control
The step 100 proceeds to the step S41 to count the number of copies to be processed.
And clears the counter 105. As above
The stapled sheet discharged to the discharge tray 66 is
Even if the stack of transfer papers is stacked, the stapled side
If the conditions that are not extremely bulky are met,
Is not performed, the stay discharged to the discharge tray 66 is not
The transfer paper bundles that have been pulled are stacked in an aligned state.
It is. When stapling is not performed,
The switching claw 36 is turned off in FIG.
It is located at the first position indicated by the line. Therefore, the copier
In the main body 2, a copying operation is performed, and a predetermined image is transferred.
The transferred transfer paper is fed through the outlet 41 of the copier body 2 to a post-processing device.
When it is introduced into the transfer paper entrance 12 of the loading device 8, the receiving roller
The transfer paper that has passed through the pair 20 is moved to the first position by the switching claw 36.
The conveyance roller pair 22 and the discharge
The stapling process is performed by the action of the roller pair 24.
Discharge from transfer paper discharge port 14 to discharge tray 44 without
Is done. The post-processing device of the image forming apparatus according to the present invention.
Indicates that the number of staples is less than
When the number of copies exceeds the specified number,
Tray shift machine every time extruded by copying paper extruding means
I moved the discharge tray by operating the mechanism,
Staple-processed transfer paper bundle discharged to the discharge tray
Are stacked, only the staple side is extreme
The tray shift process is performed when the conditions
Therefore, the staple-processed transfer paper bundle alternates in the width direction.
Are alternately stacked on the shifted output tray.
Therefore, the staple processing that is discharged onto the discharge tray is performed.
The stapled portion of the transfer paper stack
It is never bulky. Also discharge
The stapled transfer paper bundle discharged to the tray is stacked
Stapled side is extremely bulky even when stacked
If all the conditions are not met, do not perform the tray shift process
Therefore, the stapled rolls discharged to the discharge tray
The stack of paper sheets is stacked in an aligned state.
No alignment work is required.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram showing an embodiment of an image forming machine equipped with a post-processing device to which the present invention is applied. FIG. 2 is an enlarged cross-sectional view illustrating a main part of a post-processing device configured according to the present invention. FIG. 3 is a plan view showing a relationship between an aligning unit and a transfer paper pushing unit constituting the post-processing apparatus shown in FIG. 2; FIG. 4 is a plan view showing a relationship between an elevating mechanism and a tray shift mechanism constituting the post-processing apparatus shown in FIG. 2; FIG. 5 is a sectional view of the lifting mechanism and the tray shift mechanism shown in FIG. 4; FIG. 6 is a sectional view taken along line AA in FIG. 4; FIG. 7 is a configuration block diagram of control means provided in a post-processing device configured according to the present invention. FIG. 8 is a partial flowchart showing a processing procedure of a control unit shown in FIG. 7; FIG. 9 is a partial flowchart showing a processing procedure of a control unit shown in FIG. 7; FIG. 10 is a partial flowchart showing a processing procedure of a control unit shown in FIG. 7; [Description of Signs] 2: Image forming machine (electrostatic copying machine) 4: Copy machine body 6: Automatic document feeder 8: Post-processing device 10: Post-processing device housing 12: Transfer paper carry-in port 14: Transfer paper discharge Exit 16: first transport path 18: second transport path 20: receiving roller pair 22: transport roller pair 24: discharge roller pair 34: post-treatment discharge roller pair 36: switching claw 44: transfer paper receiving table 46: stopper 50: alignment means 52: positioning plate 54: width shifting means 56: positioning roller 58: timing belt 60: stapler 62: transfer paper pushing means 621: pushing member 622: pushing member operating means 64: transfer paper discharge tray device 66: discharge Tray 68: elevating means 681: elevating frame 683: tray mount 685: elevating rack 687: pinion gear 70: tray shifting means 701: Shift rack 702: pinion gear 100: control means SW1: transfer paper detection switch SW2: transfer paper detection switch SW3: extrusion member position detection sensor SW4: extrusion member position detection sensor SW5: transfer paper detection switch SW6: detector SW7: transfer Paper loading amount detection means 547 (FG1): rotation amount detector 692 (FG2): rotation amount detector 707 (FG3): rotation amount detector 32 (SOL1): solenoid 42 (SOL2): solenoid 546 (M1): servo Motor 629 (M2): Servo motor 691 (M3): Servo motor 706 (M4): Servo motor 400: Control means 401: Copy start key 402: Staple setting key 403: Staple number setting key 404: Staple copy number setting key

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65H 37/04 B42C 1/12 G03G 15/00 534 B65H 31/26

Claims (1)

(57) [Claim 1] A transfer paper receiving table for receiving a transfer paper carried in from an image forming machine main body, and an aligning means for aligning the transfer paper received by the transfer paper receiving table; A stapler for performing stapling on a plurality of transfer papers aligned by the alignment means, a transfer paper pushing means for extruding a copy paper bundle stapled by the stapler, and a transfer paper bundle extruded by the transfer paper pushing means And a tray shift means for shifting the discharge tray by a predetermined amount in a direction perpendicular to the transfer paper discharge direction. Staple number setting means for setting the number of staples; staple number setting means for setting the number of staple copies; staple number setting means; Control means for controlling the operation of the transfer sheet pushing means and the tray shift means based on a setting signal from the staple copy number setting means, and the control means includes a staple sheet number setting means and a staple copy number setting means. When the number of staples is equal to or less than a predetermined number and the number of staples is equal to or more than a predetermined number based on the setting signal, the tray shift unit is operated and the discharge tray is operated each time the stapled copy paper bundle is extruded by the transfer paper extruding unit. A transfer paper post-processing device for an image forming machine.