JP2003076086A - Sheet post-processing device, its function separating method, image forming device, control program and medium for providing control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet post-processing device capable of easily separating a series of processing functions even though a function separating switch is not provided for each of a plurality of processing functions. SOLUTION: This sheet post-processing device having a plurality of functional units is characterized in that it has a function inhibiting means for invalidating the optional functional unit out of a plurality of functional units, and is constituted so that the functional units related to a specified functional unit out of the functional units other than the specified functional unit are invalidated simultaneously when the specified functional unit out of a plurality of functional units is invalidated by the function inhibiting means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a sheet post-processing apparatus that sorts and binds sheets after image formation in image formation on a sheet surface by a copying machine or an LBP (laser beam printer). It is about.

[0002]

2. Description of the Related Art Conventionally, a stapling process for binding an end portion of a recording sheet bundle output from an image forming apparatus, a center line of the recording sheet bundle is folded, and the recording sheet bundle is folded in two to form a binding form like a pamphlet. Bookbinding processing, cutting processing to cut the edge of bookbinding that has undergone bookbinding processing, inserter function for binding and binding specific paper such as a cover to a stack of recording paper, and making large size paper half size (for example, A3 to A
There are many post-processing devices having a plurality of processing functions, such as a Z-folding function for folding the paper in a Z shape in order to make the number 4), a punching function for punching holes at the edges of the paper for binding to the binder, and the like. .

Further, the plurality of processing functions of the post-processing apparatus having the above-described plurality of processing functions are configured so that the functions can be separated individually, and the stoppage of the function of a certain processing function portion affects the whole. There has been proposed a method of preventing a malfunction of all the functions and preventing the entire system from being down by limiting the function to the minimum necessary.

[0004]

However, in the above-described conventional sheet post-processing apparatus, a switch for separating the functions must be provided for each of a plurality of processing functions, and the switch is also added as the processing functions increase. Since the number increases, there is a problem that it leads to an increase in cost.

In view of the above conventional problems, the present invention provides a sheet post-processing apparatus or the like that can easily separate a series of processing functions without providing a switch for separating the functions for each of a plurality of processing functions. The purpose is to provide.

[0006]

In order to achieve the above object, according to the present invention, in a sheet post-processing apparatus having a plurality of functional units, a function for invalidating an arbitrary functional unit among the plurality of functional units is provided. When a specific functional unit of the plurality of functional units is disabled by the function prohibiting unit, the function prohibiting unit relates to the specific functional unit among the functional units other than the specific functional unit. The feature is that the functional units are configured to be disabled at the same time.

According to the present invention, in a sheet post-processing apparatus having a plurality of functional units, a function inhibiting means for disabling an arbitrary functional unit among the plurality of functional units is provided in advance, and the function inhibiting means is used to perform the above-mentioned operation. When a specific functional unit among a plurality of functional units is disabled, among the functional units other than the specific functional unit,
It is characterized in that the functional units related to the specific functional unit are disabled at the same time.

According to the present invention, there is provided a control program for executing a function separating method of a sheet post-processing apparatus having a plurality of functional units, wherein a function prohibition for invalidating an arbitrary functional unit among the plurality of functional units is performed. When a specific functional unit in the plurality of functional units is disabled by the means, to simultaneously disable the functional units related to the specific functional unit among the functional units other than the specific functional unit It is characterized in that it has the contents for controlling.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing the internal construction of an image forming apparatus equipped with a sheet post-processing apparatus according to an embodiment of the present invention.

The image forming apparatus 1000 includes a sheet feeding device 100, an image reader 200, a printer 300, a folding device 400, a finisher 500, and a trimmer 2000.
Have.

The sheet feeding device 100 conveys the set sheets one by one from the top page in order from left to right on the platen glass 102 via a curved path, and then discharges them to a paper ejection tray 112. To do. At this time, the scanner unit 104 is in a state of being held at a predetermined position, and the sheet is read by passing the sheet on the scanner unit 104 from left to right.

When the sheet passes, the scanner unit 104
The light from the lamp 103 of the sheet is irradiated on the sheet, and the reflected light from the sheet is reflected by the mirrors 105, 106, 107 and the lens 1.
It is guided to the image sensor 109 via 08. In addition,
The sheet is fed by the sheet feeding device 100 to the platen glass 1
02, the scanner unit 10
It is also possible to read the sheet by moving 4 from left to right.

The image of the sheet read by the image sensor 109 is subjected to image processing and sent to the exposure controller 110. The exposure controller 110 outputs laser light according to the image signal. The laser light is applied to the photosensitive drum 111, and an electrostatic latent image is formed on the photosensitive drum 111.
The electrostatic latent image on the photosensitive drum 111 is developed by the developing device 113, and the developer on the photosensitive drum 111 is stored in the cassette 1
14, 115, a manual paper feed unit 125, and a transfer unit 116 for a sheet fed from any one of the double-sided conveyance paths 124.
Is transcribed by.

Manual paper feed unit 125, cassette 114, 1
The paper fed from 15 can be set by the user through the operation unit 1 (not shown), such as thick paper or OHP sheet, and the optimum conveyance conditions and image forming conditions can be set according to these paper types. Is selected.

The sheet on which the developer is transferred is fixed to the fixing unit 11
At 7, the developer is fixed. The sheet having passed through the fixing unit 117 is once guided to the path 122 by the flapper 121, and after the trailing edge of the sheet has passed through the flapper 121, the sheet is switched back and guided to the discharge roller 118 by the flapper 121.

As a result, the surface on which the developer has been transferred is discharged downward from the printer 300 by the discharge roller 118 (face down).

The sheet discharged from the discharge roller 118 is sent to the folding device 400. The folding device 400 performs a process of folding a sheet into a Z shape. When the sheet is an A3 size sheet or a B4 size sheet and the folding process is designated, the folding device 400 performs the folding process, and the other sheets are sent to the finisher main body 500 as they are.

The finisher 500 has a pair of entrance rollers 502 for guiding the paper discharged from the printer 300 through the folding device 400 to the inside. Entrance roller pair 502
Downstream of the sheet, a switching flapper 551 for guiding the paper to the finisher path 552 or the first bookbinding path 553.
Is provided.

First binding path 553, second binding path 554
The paper from is stored in the storage guide 820 by the first transport roller pair 813 and the second transport roller pair 817, and is further transported by the third transport roller 822 until the leading edge of the paper contacts the movable sheet positioning member 823. It
Two pairs of staplers (not shown) are provided downstream of the second pair of conveyance rollers 817 in the conveying direction, and the center of the sheet bundle can be bound in cooperation with an anvil (not shown) located at a position opposing the stapler. Has become.

A folding roller pair 826 is provided on the downstream side of the stapler, and after folding the sheet bundle pushed out by a not-shown ejecting member, it is fed to the trimmer 2000, and the end portion is cut off if necessary.

[Structure of Each Control Unit] FIG. 2 shows the image forming apparatus 1.
3 is a block diagram showing the configuration of a control unit of 000.

The CPU circuit unit 150 has a CPU 153, and according to the program stored in the ROM 151 and the setting of the operation unit 1, the sheet feeding device control unit 101, the image reader control unit 201, the image signal control unit 202, and the printer. It controls the control unit 301, the folding device control unit 401, the finisher control unit 501, and the external I / F 209.

The sheet feeding device control unit 101 is the sheet feeding device 100, the image reader control unit 201 is the image reader 200, and the printer control unit 301 is the image forming unit 3.
00, the folding device control unit 401 controls the folding device 400, the finisher control unit 501 controls the finisher 500, and the trimmer control unit 2001 controls the trimmer 2000.

The RAM 152 is used as an area for temporarily holding control data and a work area for arithmetic operations associated with control. The external I / F 209 is an interface from the computer 210, develops print data into an image, and outputs the image to the image signal control unit 202. The image read by the image sensor 109 is output from the image reader control unit 201 to the image signal control unit 202, and the image output from the image signal control unit 202 to the printer control unit 301 is input to the exposure control unit 110.

Next, the folding device 400, the finisher 500, the saddle pass, the inserter pass, the folding device 400 and the finisher 500, and the trimmer 2000 in the image forming apparatus 1000 according to the embodiment of the present invention shown in FIGS. Control block, function separation SW, function separation operation and power supply to the separated unit, voltage of loopback signal line, power supply switching of saddle stitcher unit, controller unit 3 of finisher 500
000 connection detection, signal transfer between the controller unit 3000 and the functional unit, and the detailed configuration of the functional connection determination table will be described.

[Folding Device, Finisher, and Trimmer Control Block] FIG. 3 shows a folding device 4 according to this embodiment.
00, finisher 500, and trimmer 2000 are block diagrams showing a configuration of a control system.

The control system of the folding device 400, the finisher 500, and the trimmer 2000 according to this embodiment includes a controller section 3000, a function separation SW section 3010, a unit connection SW section 3020, and a sample tray unit 30.
30, a punch unit 3040 for punching holes in the ends of the sheets for binding to a binder, and an inserter unit 3 for binding a specific sheet such as a cover sheet to a bundle of recording sheets for binding.
050, a folding unit 3060 for folding the sheets, a center line of the recording sheet bundle is bound, a saddle stitcher unit 3070 for binding the recording sheet bundle into a binding form like a pamphlet, and a binding process Trimmer unit 3 that performs cutting processing to cut the edge of bookbinding
It is equipped with 080.

The above configuration will be described in detail. The controller section 3
000 includes a CPU, a RAM, a ROM, a communication IC and the like (not shown). Sample tray unit 3030, punch unit 3040, inserter unit 3050, folder unit 3060, saddle stitcher unit 3070, and trimmer unit 3080.
Are constituent units of the finisher 500. Connection signals 3101 to 3106 of the respective functional units are output from the respective functional units, and the controller unit 3000 can detect whether or not the functional units are connected.

The function separation SW section 3010 is provided with switches corresponding to the constituent units of the finisher 500 excluding the trimmer unit 3080. By operating the switches corresponding to the respective functions, the corresponding function is physically changed. Feature can be disabled even if it is implemented as a standard.
The unit connection SW unit 3020 is a connection confirmation control unit of the functional unit, and even if the function is disconnected by the function disconnection SW unit 3010, the trimmer physically connected by the forced confirmation signal 3021 from the controller unit 3000. The presence / absence of attachment of all functional units except the unit 3080 can be detected.

[Details of Function Separation SW Section] FIG. 4 is a block diagram showing a detailed configuration of the controller section 3000, the function separation SW section 3010 and the unit connection SW section 3020 shown in FIG.

The function separation SW section 3010 is composed of a five-pole DIP switch 3011 composed of the switches SW1 to SW5, and one terminal of the DIP switch 3011 is grounded by a signal line. The other terminal of SW1 of the DIP switch 3011 is connected via the signal line 3091 to the sample tray unit 3
Signal line 3101 via connector 3031 in 030
Connected to.

The signal line 3101 is connected to the input port Pina of the CPU 3009 in the controller unit 3000. In addition, the unit connection S is connected to the signal line 3091.
The signal line 3023 in the W portion 3020 is connected, and is connected to the signal line 3021 via the transistor 3022. The signal line 3021 is connected to the controller unit 300.
0 is connected to the output port Pout of the CPU 3009.

Similarly, the SW of the DIP switch 3011
The other terminals of 2 to SW5 are connected to the punch unit 3040, the saddle stitcher unit 3050, the inserter unit 306 via the signal lines 3092 to 3095.
0 and each connector 304 in the folder unit 3070
The signal lines 3102 to 3105 are respectively connected via 1 to 3071.

The signal lines 3102 to 3105 are
Input ports Pinb of the CPU 3009 in the controller unit 3000 are connected to Pines. The unit connection SW unit 30 is connected to the signal lines 3092 to 3095.
Signal lines 3024 to 3027 in 20 are connected, and are connected to the signal line 3021 via the transistor 3022. The signal line 3021 is connected to the output port Pout of the CPU 3009 in the controller unit 3000.

Further, the CPU in the controller unit 3000
3009 Signal line 3 connected to input port Pinf
106 is a connector 30 in the trimmer unit 3080.
It is grounded to the ground in the controller unit 3000 via 81.

[Function separation operation and power supply to the separated unit] FIG. 5 shows the saddle stitcher unit 3
3 is a block diagram showing a detailed configuration of a power control unit and a function separation SW unit 3010 of 070. FIG.

In FIG. 5, reference numeral 3071 denotes a loopback signal line in the saddle stitcher unit 3070.
Reference numeral 3072 denotes a power supply monitoring circuit that monitors the potential of the loopback signal line 3071 (hereinafter referred to as V1), and is connected to a power supply changeover switch 3074 that turns on / off the power supply to the driver circuit in comparison with the reference voltage 3073. Outputs a switching control signal.

[Description of voltage of loopback signal line] SW5 of the switch group 3011 of the function disconnecting SW unit 3010 is off, and the unit connection SW unit (connection confirmation control unit) 302
When the 0 switch 3022 is not operating, a voltage VH that is substantially equal to the power supply voltage is generated on the loopback signal line 3071. SW5 of the switch group 3011 of the function separation SW unit 3010 is off, and the unit connection S
When the switch 3022 of the W section 3020 is operating, the voltage VM is generated on the loopback signal line 3071. The voltage VM is a value determined by the resistor R3002 of the controller unit (CPU circuit unit) 3000, the voltage division by the resistor R3020 in the unit connection SW unit 3020, and the forward voltage of the diode 3028. When the switch group 3011 of the function separation SW unit 3010 is turned on, the voltage VL substantially equal to the ground potential appears on the loopback signal line 3071.

[Switching the power source of the saddle stitcher unit] Reference voltage 3 in the saddle stitcher unit 3070
The value of 073 is set to a value smaller than the above voltage VM and larger than the above voltage VL, and the switch group 301
When SW5 of 1 is turned on, the power supply monitoring circuit 30
An ON signal is output from 72 to the power switching SW 3074, but in other cases, the power switching SW 307
An off signal is output to 4.

[Detection of Saddle Stitcher Unit Connection in Controller Section] Reference voltage ES of the saddle stitcher unit connection detection circuit 3002 in the controller section 3000
Is set to a value larger than the voltage VM described above, and the switch 3022 of the unit connection SW unit 3020 operates even when the SW5 of the switch group 3011 is on and the SW5 of the switch group 3011 is off. If so, the connection of the saddle stitcher unit 3070 can be detected.

[Switching the power supply of the trimmer unit] The power supply of the trimmer unit is switched by SW5 in the SW section 3010 for separating the functions of the saddle stitcher unit 3070.
Done in. When the function disconnection SW unit 3010 turns on SW5 and detects that the function of the saddle stitcher unit 3070 is disconnected at the input port Pine of the CPU 3009, the CPU 3009 outputs the output port Pout.
2 outputs the OFF signal to the power source switching SW 3082 in FIG. 6 through the signal line 3200 to shut off the power source of the trimmer unit 3080.

[Confirmation of Connection of Trimmer Unit] The connection of the trimmer unit 3080 can be confirmed by the trimmer unit 30.
It is performed only by whether or not the connector 3081 in 80 is connected. In FIG. 6, when the connector 3081 is normally connected, the signal line 3096 is connected to the controller unit 300.
Since it is connected to the ground potential within 0, the CPU300
The input port Pinf of 9 becomes the ground level. When the connector 3081 is not connected, the CPU 3
Since the input port Pinf of 009 becomes the power supply voltage VH via the resistor R3006, the trimmer unit 3080
The connection status of can be detected.

Here, the flow of power supply switching and connection confirmation of the trimmer unit 3080 will be described with reference to FIG. By storing the program according to the flowchart of FIG. 7 in the ROM 151 and operating the program, the following control method can be realized.

First, the CPU 3009 executes step S10.
The presence or absence of the saddle stitcher unit is checked at 01, and if the saddle stitcher unit is present, then the presence or absence of the trimmer unit 3080 is checked (step S100).
2). If the trimmer unit 3080 exists, it is then determined whether the saddle stitcher unit is functionally separated (step S1003). At this time,
When it is determined that the saddle stitcher unit is disconnected, the CPU 3009 outputs a signal for turning off the power supply switch of the trimmer unit 3080 (step S1004).

[Signal Transfer between Controller Unit and Functional Unit] FIG. 8 is a circuit diagram showing a signal line interface circuit between the controller unit 3000 and the saddle stitcher unit 3070.

In the figure, M3071 is a thrusting motor for driving a thrusting plate for guiding the sheet to a folding roller for folding the sheet in two, which is driven by a driver D3071. A motor ON signal is sent from the controller unit 3000 to the driver D3071 via the output driver T3001. Output driver T300
The output format of 1 is a well-known open collector format. Further, M3072 is a folding motor that drives the above-described folding roller, and receives the motor-on signal in the open collector format as in the case of the thrust motor M3071.

SE3071 is a sensor for detecting the home position of the veneer, and is an output driver T307.
1 to the controller unit 3000. Similarly, the output format of the output driver T3071 is an open collector format. SE3072 is a home position sensor used when moving by the folding motor M3072.

As described above, since each signal line between the controller section 3000 and the saddle stitcher unit 3080 is of the open collector type, the effective logic is low level. As a result, the voltage used in the signal output side unit does not occur in the signal lines of the controller unit 3000 and the saddle stitcher unit 3070 on the signal receiving side. As a result, the units can be electrically separated from each other, so that even if the power supply of each unit is controlled to be turned on / off at an arbitrary timing, it is possible to prevent the occurrence of a problem regarding the potential difference of the signal line between the units.

The saddle stitcher unit 3070 has the controller unit 3000 because it has the control configuration of the power supply circuit and the signal passing configuration between the units as described above.
When the saddle stitcher unit 3070 fails, the functions can be separated by using the function separation SW unit 3010 without performing the physical separation. At the same time, the function of the trimmer unit 3080 can be separated. At this time, since the power supply to the separated unit can be prohibited, other functions can be continuously used while avoiding the problem caused by energizing the failed electric component.

The sample tray unit 3030,
Punch unit 3040, inserter unit 305
0, and the interface of the folding machine unit 3060 has the same configuration as the saddle stitcher unit 3071.

According to the image forming apparatus of the present embodiment, by performing the function disconnection for one functional unit, the function of the related functional unit is also disconnected at the same time. When the functional separation of the saddle stitcher unit 3070, which is an upstream unit, is performed between the functional units that perform a series of operations, the trimmer unit 3080 of the downstream unit is used.
Can be separated at the same time. As a result, there is no need to increase the number of function disconnecting switches, which does not increase the cost. In addition, the complexity of operating the two function separation switches is avoided, leading to improved operability.

In the structure in which the registration information of each of the plurality of functional units is stored in the RAM 152 or the like,
For example, when the saddle stitcher unit 3070 is separated by the function separation SW unit 3010, the registration information of the trimmer unit 3080 related to the saddle stitcher unit 3070 is deleted and the trimmer unit 3 concerned.
The power supply to 080 may be shut off at the same time.

The present invention is not limited to the apparatus of the above-described embodiment, but may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. A storage medium storing a program code of software that realizes the functions of the above-described embodiments is supplied to a system or apparatus, and a computer (or CPU or MPU) of the system or apparatus reads and executes the program code stored in the storage medium. Needless to say, it can be completed by doing.

In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention. As a storage medium for supplying the program code, for example, a floppy (registered trademark) disk, a hard disk, an optical disk,
A magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a non-volatile memory card, and a ROM can be used. In addition, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also the OS or the like running on the computer executes actual processing based on the instruction of the program code. It goes without saying that a case where some or all is performed and the functions of the above-described embodiments are realized by the processing is also included.

Further, after the program code read from the storage medium is written in the memory provided in the function expansion board inserted in the computer or the function expansion unit connected to the computer, based on the instruction of the next program code. Needless to say, this also includes the case where the CPU or the like included in the expansion board or the expansion unit performs the expansion function to perform a part or all of the actual processing, and the processing realizes the function of the above-described embodiment. Yes.

[0057]

As described above, according to the present invention,
By executing the function disconnection for one functional unit, the function of the related functional unit is also disconnected at the same time, so that it is not necessary to increase the number of switches for function disconnection, so that the cost does not increase. Further, it is possible to avoid the complexity of operating a plurality of switches for separating the functions, which leads to improvement in operability.

[Brief description of drawings]

FIG. 1 is a sectional view showing an internal configuration of an image forming apparatus including a sheet post-processing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a control unit of image forming apparatus 1000.

FIG. 3 is a block diagram showing a configuration of a control system of a folding device 400, a finisher 500, and a trimmer 2000 according to the embodiment.

4 is a controller unit 3000, a function separation SW unit 3010, and a unit connection SW unit 3020 shown in FIG.
3 is a block diagram showing a detailed configuration of FIG.

5 is a block diagram showing a detailed configuration of a power supply control unit and a function separation SW unit 3010 of a saddle stitcher unit 3070. FIG.

FIG. 6 is a circuit diagram showing a function separation operation and power supply of the trimmer device.

FIG. 7 is a flowchart showing connection confirmation and power source switching of the trimmer device.

FIG. 8 is a circuit diagram showing a signal line interface circuit between a controller unit 3000 and a saddle stitcher unit 3070.

[Explanation of symbols]

100 sheet feeding device 101 sheet feeding device control unit 150 image forming circuit section 153 Image forming circuit CPU 151 ROM of image forming circuit unit 200 image reader 201 Image reader control unit 202 image signal controller 300 printer 301 Image formation control unit 400 folding unit 401 Folding device control unit 500 finisher 501 finisher controller 1000 image forming apparatus 3010 Function separation SW section 3020 Unit connection SW section 3030 Sample tray unit 3040 Punch unit 3050 Inserter unit 3060 folding unit 3070 Saddle stitcher unit 3080 trimmer unit

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B65H 39/00 B65H 39/00 45/12 45/12 G03G 21/00 376 G03G 21/00 376 398 398 ( 72) Inventor Hitoshi Kato 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. F-term (reference) 2H027 EJ17 FA21 FA35 ZA01 2H072 AB15 AB22 GA01 GA02 GA05 GA07 3F050 AA00 LA02 LA06 LA14 LA15 LB01 3F108 GA02 GA09 GB01 GB03 GB06 HA02 HA22 HA32 HA55

Claims (17)

[Claims] 1. A sheet post-processing apparatus having a plurality of functional units, comprising a function prohibiting unit for disabling an arbitrary functional unit among the plurality of functional units, and the plurality of functional units being made by the function prohibiting unit. When a specific functional unit in the above is invalidated, among the functional units other than the specific functional unit, the functional units related to the specific functional unit are invalidated at the same time. Sheet post-processing device. 2. The plurality of functional units are configured to be electrically separable from each other, and when the function inhibiting unit invalidates a specific functional unit among the plurality of functional units, the specific functional unit is disabled. 2. The sheet post-processing apparatus according to claim 1, wherein among the functional units other than the functional unit, the functional unit related to the specific functional unit is electrically disconnected. 3. A means for interrupting power supply to each of the plurality of functional units, wherein the specific function unit among the plurality of functional units is disabled by the function prohibiting means, the specific function unit is disabled. 3. The sheet post-processing apparatus according to claim 1, wherein power supply to a functional unit related to the specific functional unit is cut off among functional units other than the functional unit. 4. A means for cutting off power supply to each of the plurality of functional units, and a means for storing registration information of each of the plurality of functional units, wherein the function prohibiting means prevents When a specific functional unit therein is disabled, among the functional units other than the specific functional unit, the registration information of the functional unit related to the specific functional unit is deleted and the power supply to the functional unit is cut off. The sheet post-processing apparatus according to claim 1, wherein the sheet post-processing apparatus and the sheet-processing apparatus are configured to perform the above and the same at the same time. 5. The plurality of functional units include the functions of a bookbinding machine that saddle-stitches a sheet into a book and a cutting machine that cuts an edge of a book bound by the bookbinding machine. The sheet post-processing apparatus according to any one of claims 1 to 4. 6. An image forming apparatus comprising the sheet post-processing device according to claim 1. Description: 7. A sheet post-processing apparatus having a plurality of functional units, wherein a function prohibiting unit for disabling an arbitrary functional unit among the plurality of functional units is provided in advance, and the function prohibiting unit causes the plurality of functional units to be disabled. When a specific functional unit in the functional units is disabled, among the functional units other than the specific functional unit, the functional units related to the specific functional unit are disabled at the same time. Function separation method for processing equipment. 8. The specific function unit is configured to be capable of being electrically disconnected from each other, and when the specific function unit of the plurality of function units is invalidated by the function prohibiting means, the specific function unit is disabled. 8. The function separating method for a sheet post-processing apparatus according to claim 7, wherein a function unit related to the specific function unit is electrically separated from the function units other than the function unit. 9. A means for cutting off power supply to each of the plurality of functional units is provided in advance, and when a specific functional unit among the plurality of functional units is disabled by the function prohibiting means, 9. The method for separating the function of the sheet post-processing apparatus according to claim 7, wherein the power supply to the functional units related to the specific functional unit is cut off among the functional units other than the specific functional unit. . 10. A unit for cutting off power supply to each of the plurality of functional units and a unit for storing registration information of each of the plurality of functional units are provided in advance, and the plurality of units are disabled by the function prohibiting unit. When a specific functional unit among the functional units is disabled, among the functional units other than the specific functional unit, the registration information of the functional unit related to the specific functional unit is deleted and the power to the functional unit is deleted. 9. The method for separating the functions of the sheet post-processing apparatus according to claim 7, wherein the supply is interrupted at the same time. 11. The plurality of functional units includes the functions of a bookbinding machine for saddle stitching sheets into a book, and a cutting machine for cutting the edge of the booklet bound by the bookbinding machine. A function separating method for the sheet post-processing apparatus according to claim 7. 12. A control program for executing a function separation method of a sheet post-processing apparatus having a plurality of functional units, comprising a function prohibiting means for invalidating an arbitrary functional unit among the plurality of functional units. Control for simultaneously disabling a functional unit related to the specific functional unit among functional units other than the specific functional unit when a specific functional unit among the plurality of functional units is disabled A control program having the content of performing. 13. When a specific functional unit among the plurality of functional units is invalidated by the function prohibiting means, the specific functional unit among the functional units other than the specific functional unit is related to the specific functional unit. 13. The control program according to claim 12, having contents for performing control for electrically disconnecting the functional unit. 14. When a specific functional unit among the plurality of functional units is invalidated by the function prohibiting means, it is related to the specific functional unit among functional units other than the specific functional unit. 14. The control program according to claim 12 or 13, which has a content of performing control for cutting off power supply to the functional unit. 15. When a specific functional unit among the plurality of functional units is invalidated by the function prohibiting means, it is related to the specific functional unit among functional units other than the specific functional unit. 15. The control program according to claim 12, wherein the control program has contents for performing control for simultaneously deleting the registration information of the functional unit and shutting off power supply to the functional unit. 16. The plurality of functional units include the functions of a bookbinding machine for saddle stitching sheets into a book, and a cutting machine for cutting an edge of a book bound by the bookbinding machine. The control program according to any one of claims 12 to 15. 17. A medium for providing a control program, which provides the control program according to any one of claims 12 to 16.