JP3204411B2 - Identification information setting method for multi-stage paper feed unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper feed unit selecting system in an apparatus using a multi-stage paper feed unit, and more particularly, to a multi-stage paper feed unit identification information setting method which is effective when the same optional paper feed unit is used repeatedly. About.

[0002]

2. Description of the Related Art In a facsimile apparatus or the like in which a large number of paper feed units of the same size are assumed to be received in a large number of optional paper feed units, a plurality of the same paper feed units may be stacked. . In this case, since each stage is the same, the system needs to select (set, select) which unit corresponds to which unit. In a device (system) equipped with a conventional multi-stage paper feed unit,
In such a case, a predetermined priority order (for example,
The paper feed unit was selected at the top. Conventionally, such setting and selection have been performed by a selection bit assigned in serial input data transmitted from the apparatus to each sheet feeding unit.

[0003]

However, in the above-mentioned prior art, it is necessary to assign the above-mentioned selection bits to each paper feeding unit in advance, and this operation is performed by hardware. However, there is a problem in that a harness for transmitting data for this to the lower stage is required, which complicates the machine configuration. The present invention has been made in view of the above circumstances, and an object thereof is to solve the above-described problems in the conventional technology and to stack the same optional sheet feeding unit without providing dedicated hardware. An object of the present invention is to provide a method of setting identification information of a multi-stage sheet feeding unit which is effective when used.

[0004]

SUMMARY OF THE INVENTION The above object of the present invention, multiple
Paper feed unit that uses multiple paper feed units
This is a method for setting the identification information of the
Of the paper feed unit identification information sent from the control
Storage means, and at the start-up of the machine,
The serial input data with the identification information written is
Activate sequentially from the paper unit to the lower paper feed unit.
The paper feed unit corresponding to the
Data is written to the serial input data.
The paper supply unit identification information is stored in the storage unit of the paper supply unit.
Identification information of the multi-stage paper feed unit characterized by remembering
The setting method, and the enable signal is a serial input
The paper supply unit identification information written in the data is
When stored in the storage means of the corresponding paper feeding unit,
Output from the paper feed unit and sent to the lower paper feed unit
This is achieved by the identification information setting method of the multi-stage paper feed unit, which is characterized in that

[0005]

In the identification information setting method of the multi-stage paper feed unit according to the present invention, the paper feed unit identification information of each stage is written in the serial input data transmitted to each paper feed unit when the apparatus is started up. Thus, the identification information is stored in the storage means in each paper feed unit, so that the multi-stage paper feed unit is effective when the same optional paper feed unit is used repeatedly without using special hardware. Can be realized.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 2 is a view showing an outline of a facsimile apparatus with a multi-stage paper feeding unit, showing an embodiment of the present invention, wherein 1 is a main body of the facsimile apparatus, and 2a to 2d are the first to fourth stages of feeding. 2 shows a paper unit. In addition, 3a-3d have shown the jam sensor mentioned later. FIG. 3 is a block diagram showing the internal configuration of the main body of the device. In the drawing, reference numeral 12 denotes a ROM in which a basic program as a facsimile apparatus, a program of the present invention and the like are stored, and 13 denotes an RA in which a work area is formed and various data necessary for controlling the facsimile apparatus are stored.
M and 11 control each unit of the facsimile apparatus in accordance with the program in the above-described ROM, and execute the processing of the present invention.
PU, 14 is a scanner for reading an original, 15 is an operation for inputting an operation from the user, and an operation for transmitting information to the user.
A display unit 16, a SAF memory for storing transmission / reception image information;
Reference numeral 17 denotes a page memory for temporarily expanding image information to be output to a recording unit such as a plotter for copying or printing a received document. Reference numeral 18 denotes a communication control unit for exchanging facsimile signals with a facsimile apparatus via a network control unit 20 for controlling a communication line and executing a facsimile communication procedure. 21
Indicates a multi-stage paper feed control unit. Reference numerals 22 to 23 denote paper feed control units of each stage.

FIG. 4 is a block diagram showing a configuration of an input side of a paper feed control unit (22, 23,...) Provided in each of the paper feed units. As shown in the figure, each paper feed control unit 22, 23,
.. Are composed of a 1/8 frequency divider circuit 31 for a clock (CLK), a serial / parallel conversion register 32, a latch 33, and a D-flip-flop (F / F) 34, and the left side of the figure is a facsimile. The apparatus is connected to the main body or the preceding paper feed control unit, and the right side of the figure is connected to the next paper feed control unit.
FIG. 5 is a block diagram showing the configuration of the output side of the paper feed control units 22, 23,. As shown in FIG.
The output side of 1, 22,... Is a D-flip-flop (F /
F) 41, and a parallel / serial conversion register 42. The left side of the figure is connected to the input side, and the right side of the figure is connected to the CPU 11 of the main body. FIG. 1 shows the above connection state. The portions indicated as the first stage and the second stage in FIG. 1 are the sheet feeding control unit shown in FIG. As shown in FIGS. 1 and 4, a clock (CLK), serial input data (SID), a latch pulse (LATB), and a reset pulse (RESB) are input from the main body of the facsimile apparatus to each optional sheet feeding unit. , Serial output data (SOD) is output from the paper feeding unit.

The timing of each signal is as shown in FIG. 6, and one access is performed by eight CLK pulses.
Serially input / output bit data. Hereinafter, the operation of the present embodiment configured as described above will be described. For example, from the facsimile machine body,
After inputting (RESB), a write mode operation for each sheet feeding unit is executed. In write mode, the serial
ID0 of the input data (SID) is set to the “H” level, and first, SEL0, SEL0,
1,2 = (0,0,0) Input by ID1-3. At this time, since each enable signal is off ("L" level) in the second and subsequent sheet feeding units, the serial
Input data (SID) and clock (CLK) are not input, and the second and subsequent sheet feeding units do not operate. When writing to the first stage of the paper feeding unit is completed, a D-flip-flop (F / F) 34 is generated by a latch pulse (LATB).
Changes from “L” to “H” level. As a result, the enable signal changes from “L” to “H” level and is fed back, and a new input to the latch 33 is masked via the OR gate 35. In this state, the next serial input data (SID) SEL0, 1,
When 2 = (0, 0, 1) is input, the input is not accepted at the first stage of the sheet feeding unit, but is input only at the second stage of the sheet feeding unit.

By repeating the above operation, SEL
Which of the maximum eight stages from 0,1,2 = (0,0,0) to (1,1,1) is set (written). The sheet feeding units at each stage report the completion of the setting in the write mode by the OD7 of the serial output data (SOD). Thus, the system can detect how many paper feed units are set. When the system setup is completed, the system is operated, and the paper feed unit is selected, ID0 of the serial input data (SID) is set to the “L” level, and ID1 to ID3 are set for each stage. By comparing with SEL0, SEL1, and SEL2 latched in the sheet feeding unit, only the matching one is selected and operated. According to the above embodiment,
Since the selected data is written to each paper feed unit at the time of system initial, the system sets the paper feed unit more easily than by hardware.
It becomes possible to choose. It should be noted that the above embodiment is an example of the present invention, and it is needless to say that the present invention is not limited to this.

Next, in the facsimile apparatus having the multi-stage paper feed unit as described above, a description will be given of a process when any of the paper feed units has a fault such as a jam. Conventionally, in some cases, SAF (Stor
Although a measure is taken to perform alternate reception using an e-Forward (e.g. And Forward) memory, the SAF memory is limited in capacity, and if there is no remaining capacity, reception becomes impossible. Here, a method of performing reception output using a sheet feeding unit other than the sheet feeding unit in which a failure such as a jam has occurred is provided. That is, on the facsimile machine body side,
As shown in FIG. 2, jam sensors 3a to 3d are provided. Hereinafter, the operation of the present apparatus will be described with reference to the flowchart shown in FIG. The CPU 11 determines the paper size from the received data and selects a paper feed unit of a size corresponding to the paper size (step 51). This is the N-th sheet feeding unit. Next, it is checked whether or not a paper jam has occurred in the first to N-th paper feed units (step 5).
2).

As a result of the check in step 52, if there is no trouble such as a jam, the reception is performed using the N-th sheet feeding unit (step 57). Is checked (step 53), and if there is remaining memory, proxy reception is performed (step 58). If there is no remaining memory, the output data is output to a paper feed unit (hereinafter, referred to as an n-th stage) above the N-th stage.
If necessary, a scaling operation is performed, and an output operation is performed using the n-th sheet feeding unit (steps 54 and 55). If there is no paper feed unit of a size corresponding to the received data, a separate process is performed (step 56). With this configuration, even when the SAF memory has no remaining capacity, it is possible to perform reception output using a sheet feeding unit other than the sheet feeding unit in which a failure such as a jam has occurred. This technology is
It is also possible to combine with a facsimile apparatus having the above-described multi-stage paper feed unit selection function.

[0012]

As described in detail above, according to the present invention, the identification information setting of the multi-stage paper feed unit is effective when the same optional paper feed unit is used in a stacked manner without providing dedicated hardware. This has a remarkable effect that the system can be realized.

[0013]

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a connection state of a sheet feeding control unit of a facsimile apparatus with a multi-stage sheet feeding unit according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an outline of a facsimile apparatus with a multi-stage sheet feeding unit according to the embodiment.

FIG. 3 is a block diagram showing an internal configuration of an apparatus main body according to the embodiment.

FIG. 4 is a block diagram illustrating a configuration of an input side of a sheet feeding control unit provided in a sheet feeding unit of each stage.

FIG. 5 is a block diagram illustrating a configuration of an output side of a sheet feeding control unit provided in a sheet feeding unit of each stage.

FIG. 6 is a timing chart illustrating a timing relationship between signals in the embodiment.

FIG. 7 is a flowchart showing an operation of a facsimile apparatus with a multi-stage paper feed unit provided with a jam sensor to which the present invention can be applied.

[Explanation of symbols]

11: CPU, 12: ROM, 13: RAM, 14: scanner, 15: operation / display unit, 16: SAF memory, 1
7: Page memory, 18: Communication control unit, 19: Plotter control unit, 20: Network control unit, 21: Multi-stage paper feed control unit, 2
2 to 23: paper feed control units of each stage.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04N 1/00-1/00 108 G03G 15/00 303-534 G03G 21/00 370-540 H04L 12/28 -12/417 H04L 12/44-12/46

Claims (2)

(57) [Claims] An identification information setting method for a multi-stage paper feed unit using a plurality of paper feed units stacked in multiple stages, wherein each of the paper feed units has a paper feed unit identification information transmitted from a control unit of an apparatus main body. A storage unit is provided, and when the apparatus is started up, a system in which the paper feed unit identification information of each of the above-described stages is written.
Real input data is supplied from the upper paper feed unit to the lower
Enable signal that becomes active sequentially toward paper unit
Number into the corresponding paper feed unit, and
Paper unit identification information written in the input data
Is stored in the storage unit of the sheet feeding unit, wherein the identification information setting method of the multi-stage sheet feeding unit is stored. 2. The serial input circuit according to claim 2 , wherein
Input unit identification information written in the force data
When stored in the storage unit of the corresponding paper feed unit,
Output from the paper feed unit and sent to the lower paper feed unit
2. The identification information setting method for a multi-stage sheet feeding unit according to claim 1 , wherein the signal is a signal to be set.