JPH01285963A - Operation mode setting method for copying machine - Google Patents

Abstract

PURPOSE:To allow a standard operation mode to be partly and properly changed so that said part can be set as one of the standard operation modes by making a desired key operation as a special mode setting mode by the special operation involving the operations of a power switch and the mode setting key on an operation panel. CONSTITUTION:A main routine is started and the display of a special mode is turned on by the special operation of closing the power switch while the two keys; a register check key 66 and a register clear key 65, of the operation panel 60 are held turned on. Various mode changes, etc., are allowed and are selectively set according to input/output processing and register setting processing. A part of the changed and set mode is maintained in the backup region in a RAM even when the power switch is turned off. The changed mode is initially set as a part of the standard mode when the power switch is next closed. A part of the standard operation mode can thus be set as desired by the intentional key operation without making erroneous setting.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an operation mode setting method for a copying machine suitable for a multifunctional copying machine having various functions.

BACKGROUND OF THE INVENTION In recent years, copying machines have become multi-functional, and have become capable of performing various types of copy processing. Then, by operating keys, the user sets a desired operation mode and executes copying. Here, when the power switch is turned on or the mode clear key is pressed, the operation mode is automatically set to a predetermined operation mode, that is, the standard operation mode, or automatically changed from the set operation mode to the standard operation mode. Return.

However, the standard operation mode that is preset at the time of copying machine shipment is not necessarily easy to use for all users, and some users may choose to use the standard operation mode individually, considering their frequent copying methods. You may want to change some part of. This is convenient because it is often possible to perform a copy operation in the standard operation mode suitable for the user without making any special mode settings.

Conventionally, such requests for partial changes in the standard operating mode have been handled using dip switches, special keys, etc. For example, in the case of a dip switch method, a plurality of dip switches are provided and one mode is set for each dip switch. However, it requires multiple dip switches, resulting in high cost. Also,
In order to avoid erroneous setting changes, it is desirable to have a configuration that is difficult for users to operate, but easy for service personnel to change.However, currently the former is prioritized to avoid erroneous settings, so it is difficult for service personnel to perform change operations. It has a difficult configuration.

In addition, in the case of the dip switch method, if a part of the standard operating mode is changed by operating the dip switch, it is fine as long as the changed mode is for continuous use. If you forget to return the dip switch when setting a free run mode etc.
This free-run mode will also become effective as part of the standard operation mode the next time the power is turned on. In other words, there is also the inconvenience of forgetting to return the dip switch.

Purpose The present invention was made in view of the above points, and it is possible to perform some of the standard operation modes as required without erroneous settings due to intentional key operations while maintaining the existing or ordinary key configuration of the operation panel. The purpose of the present invention is to provide a method for setting the operation mode of a copying machine that can be changed to the following.

Configuration In order to achieve the above object, the present invention includes a power switch that supplies power, a mode setting key that sets the copy mode, a backup storage means that stores some modes even when the power is off, and a switch that supplies power when the power is turned on. Alternatively, the standard mode setting means is set when the mode is cleared, and the special mode setting mode is entered by turning on the power switch while pressing a specific mode setting key among the mode setting keys, and the special mode setting mode is set. In the mode state, by operating the mode setting keys including the numeric key, a part of the preset standard mode can be changed or special operation can be set, and furthermore, according to the contents of the changed standard operation mode, Some of them are backed up when the power is turned off, and the rest are not backed up.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

First, FIG. 2 is a cross-sectional structural diagram schematically showing a monochrome copying machine to which the present invention is applied. An automatic document feeder (hereinafter abbreviated as ADF) 2 is mounted on the copying machine main body 1 . In addition, a sorter 3 is equipped on the side paper ejection side, and a two-stage paper feed cassette 4, 5 and a paper feed tray 6 for feeding a large amount of paper are equipped on the side paper feed side. The transfer paper 7 is configured to be able to selectively feed the transfer paper 7.

The ADF 2 includes a document table 8, a paper feed roller 9, a conveyance belt 11 located on a contact glass 10, a paper discharge turn guide 12, a document discharge tray 13, and the like. As a result, the originals 14 stacked and set on the original table 8 are automatically fed and transported onto the contact glass 10 by the paper feed roller 9 and the transport belt 11, stopped at a predetermined position 6, and then exposed and scanned. Serve. After the original exposure scan is completed, the conveyor belt 1 is driven again and the original output tray 1 is
3. Eject the paper onto the top. Such operations are repeated for the stacked originals 14 in the same manner. Here, the entire ADF 2 can be opened and closed with respect to the contact glass 10 with one side as the axis, and the ADF 2 can be opened and closed with respect to the contact glass 10 with one side as the axis.
By opening F2, an original can be directly set on the contact glass 10, and the ADF 2 functions as an original pressing plate.

Further, the copying machine main body 1 is provided with an optical system for exposing and scanning the original 14 automatically/manually set on the contact glass 1o. First, the original 14 is illuminated by the lamp 15 . Then, the reflected light from the original 14 is reflected from the first to
An image is formed on the surface of a drum-shaped photoreceptor 21 disposed within the copying machine main body 1 via the three mirrors 16 and 17 degrees 18, the lens unit 19, and the fourth mirror 20. The lamp 15 and the first mirror 6 are mounted on a first carriage (not shown) and are driven to scan the lower surface of the contact glass 10 from the left side to the right side in FIG. 2 at a constant speed.

The second and third mirrors 17, 18 are mounted on a second carriage (not shown) and are driven in the same direction at half the speed of the first carriage.

The photoreceptor 21 is rotated clockwise by a main motor 22 via a drive transmission mechanism (not shown), and various members are arranged around it in accordance with the electrophotographic process. First, the surface of the photoreceptor 21 is uniformly charged by the main charger 23. The charged surface passes through the subdivision erase unit 24 and is exposed by the optical system to a light image corresponding to the original image, and the photoreceptor 21
An electrostatic latent image is formed on the surface. This electrostatic latent image is developed with a developer in a developing device 25 to become a visible image, and is sent to a transfer section by a transfer charger 26.

On the other hand, the transfer paper 7 is stored in the paper feed cassettes 4, 5 or the paper feed tray 6.
The paper feed roller 2 is selectively driven from one of the paper feed sections by
It is fed out at step 7, passes through conveyance rollers 28 and 29, reaches registration rollers 30, and waits there.

The timing is determined by the registration roller 3o, and the paper is conveyed to the transfer section according to the paper guide. Here, due to the action of the transfer charger 26, the visible image on the photoreceptor 21 is transferred to the transfer paper 7.
transcribed into. The transferred transfer paper 7 is transferred to the separation unit 3
1, the paper is separated from the photoreceptor 21, guided by a paper guide 32, and enters a fixing device 33. This fixing device 3
After being heated and fixed by the heater heat of 3, the paper guide 3
4 and is sent out of the copying machine main body 1 by a paper ejection roller 35. If it is in the sorter mode, it is sorted by predetermined types and discharged into a predetermined bin 36 in the sorter 3.

Also, in double-sided copy mode or composite copy mode,
Since it is copied twice on one sheet of transfer paper (same transfer paper),
After passing through the paper ejection roller 35, the paper is conveyed downward by the switching device 37, and is ejected by the ejection roller 39 with the copied side facing upward onto the intermediate tray 38 for re-copying, where it waits.

Thereafter, the sheet is conveyed through the second conveyance path 43 by the pick-up roller 40, refeed roller 41, conveyance roller 42, etc., and is again conveyed to the transfer section by the registration roller 30 at a predetermined timing. Here, in the double-sided copy mode, since the transfer paper 7 is waiting on the intermediate tray 38 with the copied side facing upward, the transfer paper 7 is transferred from the second @ feed path 43 to the transfer charger 26.
If the image is directly turned and conveyed until the image is transferred, the untransferred surface will be located on the side of the photoreceptor 21, and thus a double-sided copy will be made by transferring the image as it is. On the other hand, in undercolor or other composite copy modes in which copies are made on top of monochrome copies, it is necessary to transfer the image twice onto the same side of the transfer paper 7. For this reason, the second
In the middle of the conveyance path 43, there is a reversing device 4 for composite copy mode.
4 is provided so as to be selectively activated by a switching claw 45. 46 is the reversing evacuation tray, 47 is the calling roller,
48 is a paper refeed roller.

On the other hand, the surface of the photoreceptor 21 after the transfer process is cleaned by the cleaning unit 49 and uniformly charged by the main charger 23 again.

Furthermore, red, green, and blue developer tanks 50, 51, and 52 are installed separately in the lower part of the copying machine main body 1, and each is independently piped to the photoreceptor 21, so that the developer is supplied to the photoreceptor and It is configured to circulate between tanks. 53 is a supply side piping system, 54 is a recovery side piping system, and 55 is a recovery distribution section. Further, 56 is a cleaning liquid tank. Further, a tank 57 for black toner liquid, which is used most frequently, is arranged near the photoreceptor 21.

Next, the configuration of the key/display operation panel 60 of the copying machine of this embodiment will be explained with reference to FIG.

First, the keys and switches include a power switch (not shown), various keys including the usual mode setting key,
For example, print key 61, interrupt key 62, mode clear key 63, numeric keypad 64, clear stop key 65,
A number confirmation key 66 is provided. Further, a density key 67, a paper selection key 68, a magnification key 69, a continuous page copying key 7o, a duplex copy key 71, and a sorter key 72 are provided for instructing and setting various modes and functions. The density key 67 is used to instruct dark/light in addition to automatic density.

The magnification key 69 is 1. A fixed magnification of OO%/74%/64% is specified cyclically for each key operation. The page continuous copying key 7o is used to select and instruct page continuous copying 2/1. The double-sided copy key 71 is used to select and instruct double-sided copy 2/1.

Sorter key 72 is used to select stack mode/sort mode. In addition to this, various other keys (for example, a composite copy key, etc.) are provided as appropriate, but they will be omitted.

In addition, a display section 73 disposed on a part of the operation panel 60
Inside, there is a document number display section 74, a copy number display section 75,
Along with a job in progress display section 76, paper selection display section 77, paper end display section 78, etc., a service man call display 79 is provided.
Abnormality display sections 79 such as a, toner end display 79b, door open display 79c, developer out display 79cl, transfer paper jam 79e, and original document jam 79f are provided. 80 is a second screen mode display section.

Furthermore, the schematic configuration of the control system of the copying machine of this embodiment is shown in the block diagram of FIG. A key switch group 81 operated by various keys on the operation panel 60, machine white state detection sensors (for example, paper sensor, jam sensor, etc.) 82, a pulse generator 83 that generates timing pulses synchronized with the photoreceptor 21, etc. , and are input to the CPU 85, which controls the entire system, via buffers 84 and the like. This CPU 85 is connected to a ROM 86, a RAM 87, an I10 port buffer 88, etc. via an address bus, a control bus, a data bus, etc.
89 is connected. These 10-port buffers 88 and 89 are connected to various loads via drivers 90, such as a display section (display element) 73 on the operation panel 60, a mechanical drive system (for example, the main motor 22), exposure, charging, etc.
A developing system load, a paper feeding/discharging system load, a fixing system load, a peripheral device load such as the ADF 2, etc. are connected. Note that the RAM
87 is backed up by a battery (not shown), and a part of the area functions as a non-volatile memory.

In such a configuration, a flowchart of the basic operation is shown in FIG. When the power switch is turned on, the copy machine
After performing power-on initialization processing, print preprocessing and copying preprocessing are performed in this order, and then actual copying processing is performed. When the copy process is finished, perform the copy end process,
Perform preprocessing for the next copy, or repeat the termination process and wait.

32. The li' power-on initialization J process in the basic flowchart of FIG. 5 is executed by the CPU 8 as shown in FIG.
5, the selective special mode setting process (special mode setting mode), and the initial mode setting process are performed in this order. Among these, the FCPU initial setting process includes input/output port settings, RA
The contents of M are cleared (however, the backup area is removed and the contents of the backup area are maintained as they are), various timers are set, backup is checked, and the process moves to input/output processing. The special mode setting process is
This is a characteristic process of this embodiment, and the details will be described later, but a predetermined operation mode is set as one of the standard operation modes by changing a part of the standard copy mode set in advance according to the user's request. It is for setting and is optional.

Further, the initial mode setting process is a process for setting the copying machine to the standard operation mode.

The "special mode setting" process will be explained based on the flowchart of FIG. 1 and further with the flowcharts of FIGS. 8 to 13. First, this special mode setting routine is a selective one that requires intentional operation by the operator in order to avoid inadvertently changing the standard operation mode due to incorrect settings. This routine is entered by a special operation of turning on the power switch while keeping both the confirmation key 66 and the number clear key (clear stop key 65) on, and the special mode display is turned on.

Furthermore, it is possible to change various modes as described below. That is, APS standard setting processing, AMS standard setting processing, paper feed port standard setting processing, standard size setting processing, AD
These are F speedup setting processing, duplex mode speedup setting processing, and free run mode setting processing. These are selected and set according to input/output processing and number setting processing. To exit from this special mode setting routine, set r999J on the numeric keypad 64 and press the print key 61, or turn off the power switch. When the print key 61 is pressed after entering r999J, the process immediately proceeds to the next initial mode setting, and the mode changed in this special mode setting routine is initialized as part of the standard mode. Also,
Even when the power switch is turned off, some changed modes are maintained in the backup area in the RAM 87, and the next time the power switch is turned on, the changed modes are initialized as part of the standard mode. .

Here, the automatic size selection (APS) mode, which automatically selects the transfer paper size from the original size and magnification, is set to the standard operation mode (i.e., the initial mode when the power is turned on, or the r- FIG. 8 shows the FAPS standard setting process, which is the process of determining whether to set the mode as one of the modes (I-movement return mode). If you want to set the APS mode to the standard operation mode, enter ``250J'' on the numeric keypad 64 and turn on the print key 61 to turn on and set the APS set flag. After that, if you press the mode clear key 63, the APS reset flag turns on and the APS mode is released from the standard operation mode.The APS set flag and APS reset flag are stored in the backup area of the RAM 87 in any case, and the power is turned off. When the power is turned on next time, the state of this flag is checked during the initial mode setting during the power-on initialization process, and the APS
It is determined whether or not the mode is set as one of the standard operation modes.

Completion of the settings is confirmed by the buzzer sounding three times.

Also, fA is a process for determining whether to set the automatic magnification selection (AMS) mode, which automatically selects the copy magnification based on the original size and transfer paper size, as one of the standard operation modes.
The routine of "Ms standard setting process" is shown in FIG. AMS
If you want to set the mode to standard operation mode, press numeric key 6.
By inputting "252" in step 4 and turning on the print key 61, the AMS set flag is turned on and set. On the other hand, if the mode clear key 63 is pressed after setting r252J, the AMS reset flag is turned on and the AMS mode is canceled from the standard operation mode.

The AMS set flag and the AMS reset flag are also stored in the backup area of the RAM 87 in the same way as in the APS standard setting process described above.

Next, the routine of "paper feed port standard setting process" will be explained with reference to FIG. Here, the paper feed port is a process for setting the operation from which of the three-tiered cassette trays 4, 5, and 6 to feed the transfer paper into the standard operation mode. The paper feed cassette 4 is the first paper feed port (paper feed mode 1),
The paper feed cassette corresponds to the third paper feed port (paper feed mode 3). After entering r200J on the numeric keypad 64, pressing the print key 61 turns on the flag for paper feeding mode 1, which sets transfer paper feeding from the paper feeding cassette 4 (first paper feeding port) as the standard operation mode. Also, if you press the print key 61 after entering r210J on the numeric keypad 64, the flag for paper feed mode 2, which sets transfer paper feeding from paper feed tray 6 (third paper feed port) as the standard operation mode, is turned on. Ru. Paper feeding mode 1 like this
The on/off states of the flags .about.3 are also stored in the backup area. Furthermore, the routine of the "standard size setting process" will be explained with reference to FIG. This is to ensure that the set transfer paper size is automatically selected in the standard operation mode, and the corresponding size data is displayed in the standard size data area by setting the value using the numeric keypad 64 and operating the print key 61. is set to For example, if you enter r220J on the numeric keypad 64 and press the print key 61, A4 horizontal size data will be set in the standard size data area. If you specify a different size, just change the value. Further, in order to prevent paper from being fed from the paper feed tray 6 (third paper feed port), the flag for paper feed mode 3 is turned off.

These standard size data and the paper feed mode 3 flag are maintained in the backup area. Therefore, when setting the initial mode when the power is turned on next time, the paper feed slot setting process is called as described later, and the above setting example (setting value r220J
), the paper feed port having the A4 horizontal size transfer paper 7 is selected.

Furthermore, the routine of the li'ADF speedup setting process J is shown in FIG. First, when performing a copying operation using the ADF 2, make sure that the ADF 2 feeds and conveys the original 14 onto the contact glass 10 to the specified position without jamming (feeding error). Then, the paper feed control mode (original paper feed confirmation method) based on the first paper feed timing in which the transfer paper 7 is fed.
and a paper feeding control mode (speed-up method) using a second paper feeding timing in which the transfer paper 7 is immediately fed at a predetermined timing without checking whether or not the original 14 has jammed during paper feeding and conveyance of the ADF 2. , is used to set which transfer paper feeding timing control method is to be set as the standard operation mode. That is, according to the first paper feeding timing, if a document feeding error occurs in the ADF 2, the transfer paper 14 will not be fed, so that unnecessary copying operations will not be performed.

However, since the transfer paper is fed after checking the document conveyance status, it is undeniable that the processing time is delayed when copying a large number of documents 14 one by one. On the other hand, according to the second paper feeding timing, since the transfer paper 7 is fed in parallel with the feeding and conveyance of the original 14, there is less waiting time, and when copying multiple originals, etc.
The copy processing time can be shortened. On the other hand, even if a paper feeding error occurs in the ADF 2, since the transfer paper 7 has already been fed, a wasted copy of copy paper will occur. Since there are advantages and disadvantages as described above, it is necessary to set which of the first and second paper feeding timings will be set as the standard mode.

Specifically, if you press the print key 61 after entering r250J on the numeric keypad 64, the ADF upset flag is turned on, and the mode clear key 63 is pressed instead of the print key 61.
If you press , the ADF up-reset flag will turn on.

These ADF upset/reset flags are also stored in the backup area. Processing based on either setting will be described later.

FIG. 13 shows the routine of "free run mode setting process". After entering "1oOJ" using the numeric keypad 64, press the print key 61 to turn on the free run mode flag, press the mode clear key 63 to 3, and save the on/off information of this free run mode flag to the backup area. is not stored and does not become non-volatile data. Therefore, even if free run mode is set by this process, the mode setting will only be valid when the power is turned on this time. If you input
Unless the special mode setting routine shown in the figure is entered and the free run mode is reset as described above, the free run mode is set to off. Also, after turning on this free run mode flag, use the numeric keypad 64 to select r99.
After entering the number 9J and operating the print key 61 to exit the special mode setting routine, it is possible to execute a copy operation in free run mode, that is, a special copy operation in which paper feeding operation and jam detection operation are prohibited. It turns out.

Next, during the power-on initialization processing, the "Initial mode setting" processing routine after the "Special mode setting" processing is performed in the first
Shown in Figure 4. First, set the number of copy sets to 1 and the magnification to 10.
0%, the exposure amount is set to the median value (both data are for the standard operation mode), and the transfer paper feed port is set based on the process shown in FIG.

Next, each of APS mode, AMS mode, and ADF speedup mode is set. ASP mode is the 8th
If the APS reset flag is off based on the settings in the figure, it is set as one of the standard operation modes. In other words,
Unless the APS reset flag is turned on according to the setting operation shown in Figure 8 during the special mode setting process, APS mode becomes one of the standard operation modes (by the way, at the time of shipment of this copier, APS mode is one of the standard operation modes). ). Similarly, AMS mode is
It is set if the S set flag is on. In other words, unless the AMS set flag is turned on according to the setting operation shown in FIG. 9 during the special mode setting process described above, the AMS set flag is turned off and the AMS mode is not set (by the way, at the time of shipment of this copier, AP
Unlike the S mode and - mode, the off state of the AMS mode is considered to be the standard operating mode). Further, the ADF speed-up mode is set as the standard operation mode if the ADF up-reset flag is off. That is, this mode is also set to the ADF speed-up mode unless the ADF upset flag is turned on according to the setting operation shown in FIG. 12 (at the shipping level, the ADF speed-up mode is the standard operation mode).

Here, select "Paper Feed Slot Set" during the initial mode setting routine.
The details of the processing routine are shown in FIG.

At the time of shipment, the copying machine of this example is set to paper feed timing 1, in which the transfer paper 7 is fed from the first paper feed port (paper feed cassette 4), as the standard operation mode, and the first timing in the special mode setting routine is set as the standard operation mode. .0 If no changes are made in the process shown in Figure 0, the first paper feed port is set as standard. However, in the special mode setting routine, when paper feed timing 2 is set according to FIG. 10, paper feeding from the third paper feed port (paper feed tray 6) is selected as the standard operation mode. Further, when the standard size is set in the special mode, the paper feed port in which the transfer paper 7 of the specified size is stored is selected in priority to the paper feed 1 and 2 modes described above.

In addition, in which paper feed port 4 or 5 is the transfer paper 7 of the specified size
．． If the paper feed port 6 does not exist, the paper feed port determined by the designated paper feed timing is selected.

Next, FIG. 16 shows the "print preprocessing" routine in the basic routine shown in FIG. This process is mainly
As shown in FIG. 17, the mode setting process by the key person J from the operation panel 60, the print preparation process to enable copying, the print availability check process, and the print start temperature setting process by the print key 61, etc. It performs processing such as copy number setting, paper feed cassette setting, scaling setting, ADF mode setting, sorter mode setting, color mode setting, composition mode setting, mode clearing, etc. Further, in the "print preparation process", as shown in FIG. 18, processes such as fixing temperature setting, initial cleaning, and toner replenishment are performed. As shown in Figure 19, "Print condition check" performs a fixing temperature check, initial cleaning completion check, variable magnification set completion check, and color color set completion check, and if all are OK, print is displayed, and even if only one If it is not OK, a message indicating that copying is not allowed will be displayed.

Further, the process of "ADF mode setting" is performed when the original 14 is set on the original table 8 of the ADF 2 (detected by the insertion sensor), as shown in FIG.
2, if a document jam has not occurred and the ADF 2 has not been lifted up, the ADF mode flag is turned on and the ADF mode is automatically set.

Next, FIG. 21 shows the "copy preprocessing" routine in the basic routine shown in FIG. This processing is a processing routine from print-on to the actual copy routine, and mainly performs print-on initialization processing, pre-copy operation processing, etc. Here, the "print-on initialization process" is, as shown in FIG. 22, a start process for pre-copy operations, such as turning on the main motor 22, turning on the pump motor (not shown) for supplying developer, and starting the ADF original. Performs processing such as starting paper feeding.

FIG. 23 shows "ADF speedup flag setting processing" during print-on initialization processing. this is,
This is a routine that checks the conditions in order to prevent the actual speed-up operation from being executed if other conditions are not satisfied even in the ADF speed-up mode. Here, it is assumed that the mode is ADF speedup mode. Then, if the copy mode is a double-sided copy mode and it is in the back side copy mode, the speed-up operation is not executed. This is A.D.
If document 14 jams at F2 (paper feeding error),
The transfer paper 7 re-fed from the intermediate tray 38 becomes a wasted copy and is ejected, and in this case, the original image must be copied again from the front side, making the duplex copy operation procedure extremely complicated. This is to avoid becoming This is not limited to the double-sided copy mode, but even in the composite copy mode, the speed-up operation is not executed the second time for the same reason. That is, when refeeding paper from the intermediate tray 38, the ADF speed-up operation is not performed.

Also, when not in repeat copy mode (according to the "repeat mode check" described later, the first original is fed and set when copying that original), in other words, when the first copy of a multiple original To prevent ADF speed-up from being executed even when a document 14 is fed. This is due to ADF errors such as original setting errors, separation paper feeding errors, etc.
The paper feeding error in step 2 is when the first document 14 is fed.
This is because it is most likely to occur compared to when feeding subsequent documents. Furthermore, in the APS/AMS mixed loading mode (APS/AMS mode in which originals 14 of different sizes are mixed), the APS/AMS itself checks the original size when feeding the original 14 in the ADF2, so the mixed loading mode In this case, it is necessary to perform a size check every time a document is fed, and depending on the result, transfer paper 7 of a desired size is selected and fed, so ADF speed-up is not performed.

In addition, as shown in FIG. 24, the "original feeding start process" in the print-on initialization routine satisfies the original feeding conditions (ADF mode, original 14 exists, ADF2
(has not been lifted up), the document feed flag is turned on, and when the ADF speed-up flag is on, the DF timer is started.

Next, FIG. 25 shows the "pre-copy operation processing" routine of the copy pre-processing routine (FIG. 21). This process is
Mainly, it is document feeding processing and transfer paper feeding processing, and AD
In the case of F speedup mode, this is achieved by shortening the processing time of this copy preprocessing operation.

That is, there is a document feeding confirmation method (a control method based on the first paper feeding timing) in which it is confirmed whether or not a document jam has occurred during document feeding in the ADF 2, and transfer paper feeding is started when no jam has occurred. , and a speed-up method (control method based on the second paper feeding timing) in which transfer sheet feeding is started without checking whether or not a document jam has occurred in the ADF 2. Both types of processing will be explained. In addition, in the ADF 2, as shown in FIG. 27, the required pulse P1 to reach the reference sensor 91 for the original 14 fed from the original table 8 is 70 pulses (1 pulse =
1 mark), and the standard value of the required pulses P2 required from this reference sensor 91 to the document setting position is 470 pulses.

First, in the case of the document feeding confirmation method (control method based on the first paper feeding timing), the leading edge of the document 14 whose feeding has started in the ADF 2 is the reference point in the "original feeding process" (see Figure 26 for details). After passing the sensor 91, the conveyor belt 11 is driven by 470 pulses to reach a specified document setting position. Also, when the trailing edge of the original 14 passes the reference sensor 91, the transfer paper feed is OK.
Turn on the flag. Transfer paper feeding is set to start on the condition that this flag is on. Therefore, if the document 14 does not reach the reference sensor 91 within a predetermined time after paper feeding starts, or does not exit the reference sensor 91 position, it is detected as a jam and an ADF paper feeding error, and this transfer paper feeding error is detected. The OK flag is not turned on and the transfer paper 7 is not fed. If no paper feeding error is detected, the transfer paper feeding OK flag is turned on, and after paper feeding is started, the "transfer paper feeding process" shown in FIG. 30 is performed.

If the transfer paper is being fed from the third paper feed port, which takes the longest time, a copy start OK flag is set 250 pulses (=0.86 seconds) after paper feeding starts, and the "Before copying" flag is set. Turn on "Operation End" and proceed to the actual copy routine. The time from the start of document feeding to the end of the pre-copy operation is calculated by setting the document feeding speed to 500 mm, 7 seconds, and document length (for the time from the start of document feeding to the start of transfer paper feeding).
If LT side) is 216 cylinder, then 0.3+(70+2],6)1500=0.87 seconds. Therefore, when adding the time of 0.86 seconds from the start of feeding the transfer paper to the end of the pre-copy operation, the process takes a total of 1.73 seconds.

On the other hand, in the case of the speed-up method (control method using the second paper feeding timing), as shown in the routine of "transfer paper feeding start process j" in FIG. 29, the transfer paper feeding OK flag is on. Regardless of whether or not a document feeding error occurs in the ADF 2, if other transfer paper feeding conditions are met, transfer paper feeding will start immediately. Start a 1 second timer when paper is fed (see li'DF timer check shown in Figure 28),
At that time-up, a flag indicating that the document is set OK is set. Then, the pre-copy operation ends when both the copy start OK flag and the document set OK flag are set by the paper feeding pulse (therefore, one second after the start of document feeding). Therefore, compared to the original paper feed confirmation method, 0.7
Processing time is reduced by 3 seconds. Therefore, when copying a large number of originals one by one, the copying speed is 19CPM with the former document feeding confirmation method, whereas the copying speed with this speed-up method is 26CPM.
PM, resulting in a speedup of approximately 38%.

Note that one of the processes during the pre-copy operation process is the process of "invalid paper detection" as shown in FIG. This is a process for detecting the existence of a paper jam, since if a document jam occurs in the ADF 2 after the transfer paper 7 starts to be fed, the fed transfer paper will be used for useless copying. When invalid paper is detected, the number of occurrences is counted up.

Further, when the transfer paper 7 passes the final ejection sensor (not shown), whether or not the transfer paper is invalid paper is determined as part of the processing routine of "paper ejection counter increment" shown in FIG. This is checked by the "invalid paper 2 detection" routine shown in FIG. If the ejected transfer paper is invalid paper,
Control is performed so that the paper discharge counter does not advance and the sorter bin does not advance when the sorter 3 is in use (see FIG. 34).

Further, FIG. 35 shows a "copy processing" routine in the basic routine shown in FIG. This processing mainly includes initial settings (see Figures 36 and 37), repeat processing (see Figures 38 and 39), repeat timing check (see Figure 40), and repeat end check (see Figure 4).
(see Figure 1). Here, in the initial setting shown in FIG. 36, the repeat mode check of the ADF 2 is performed as shown in FIG. 37, but this means that if the next original is set in the ADF mode, the repeat mode flag is turned on. It is something. This repeat mode flag is used to automatically feed the next document upon completion of copying and to perform continuous copying. In addition, in the print-on initialization process, if this flag is on, it is detected that the second or subsequent document J4 is being copied, and this is used as one of the conditions for setting the speed-up flag described above. It will be done.

Furthermore, in the repeat processing shown in FIG. 38, initially, the sequence control processing for image formation shown in FIG. 39 is performed. That is, depending on the value of the sequence pulse, lighting control of the exposure lamp 15, ON control of the scanner clutch, ON control of the main charger 23, ON control of the developing bias, etc. are performed. At this time, as mentioned above, if the invalid paper flag is on and it is detected that useless transfer paper has been fed and conveyed, the above image forming process is skipped (the development bias is turned on). , invalid paper is ejected from the machine as a blank sheet, making it possible to reuse it.

Finally, FIG. 42 shows the routine of "copy end processing". This process is mainly performed by auto print check (
43), end operation processing -38= (see FIG. 44), copy end check 1 (see FIG. 45), copy end check 2 (see FIG. 46), etc.

Effects The present invention is capable of setting a part of the standard operation mode as appropriate by performing a special operation using the power switch and a specific key of the mode setting key on the operation panel. It can be changed and set as one of the standard operation modes, reducing the cost by eliminating the need for multiple new dip switches, etc. Special key operations prevent unnecessary and erroneous settings, making it easier for users Easy-to-use standard operation mode specifications can be used for each
Furthermore, by not backing up the changed operating mode depending on the mode content, such as a special mode, there is no need for the trouble and inconvenience of setting the operating mode back to the standard operating mode for subsequent use.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a flowchart showing a special mode setting routine, FIG. 2 is a schematic sectional view of the entire copying machine, FIG. 3 is a schematic plan view of the operation panel, and FIG. A schematic block diagram of the control system, FIG. 5 is a flowchart showing basic processing, FIG. 6 is a flowchart showing power-on initialization processing, FIG. 7 is a flowchart showing CPU initialization routine, and FIGS. 8 to 13 are flowcharts showing basic processing. 14 is a flowchart showing the initial mode setting routine; FIG. 15 is a flowchart showing the paper feed slot setting routine; FIG. 16 is a flowchart showing the print preprocessing routine; 17 through 19 are flowcharts showing various processing routines in the print preprocessing routine, FIG. 20 is a flowchart showing the ADF mode setting routine, FIG. 21 is a flowchart showing the copy preprocessing routine, and FIGS. 22 through 26. The figure is a flowchart showing various processing routines in the copy pre-processing routine, FIG. 27 is a schematic front view of the vicinity of the ADF, and FIGS.
4 is a flow chart showing various processing routines in the pre-copy operation processing routine, FIG. 35 is a flow chart showing the copy processing routine, FIGS. 36 to 41 are flow charts showing various processing routines in the copy processing routine, and FIG. 42 is a flow chart showing various processing routines in the copy processing routine. This figure is a flowchart showing the copy end processing routine, and FIGS. 43 to 46 are flowcharts showing various processing routines in the copy end processing routine. 2. Automatic document feeder, 7. Transfer paper, 14. Original document,
62.63...Mode setting key, 64...Number key, 65.66...Specific mode setting key, 67-72
...Mode setting key, 87...Backup storage means -1\;

Claims (1)

[Scope of Claims] 1. A power switch for supplying power, a mode setting key for setting a copy mode, a backup storage means for storing a part of the mode even when the power is off, and when the power is turned on or the mode is cleared. By turning on the power switch while pressing a specific mode setting key among the mode setting keys, a special mode setting mode is entered, and the device is placed in the special mode setting mode state. 1. A method for setting an operation mode of a copying machine, comprising changing a part of a preset standard mode or setting a special operation by operating a mode setting key including several keys. 2. The method for setting an operation mode of a copying machine according to claim 1, wherein some modes are backed up when the power is turned off, and the remaining modes are not backed up, depending on the content of the changed standard operation mode.