JPH0235467A - Reference timing signal generating device for recorder - Google Patents

Abstract

PURPOSE:To generate a pitch reset signal in the shortest time when the alternating factor of pitch division occurs by providing a reference position detecting means and a reference timing signal generating means. CONSTITUTION:The reference position detecting means 01 detects a reference position provided on a photosensitive body where plural latent images can be set. The reference timing signal generating means 02 produces a reference timing signal by referring to a pitch timer table 03. And without waiting for the next detection of a reference position, the number of the latent image areas can be altered. Even if a pitch is required to be altered any time, a pitch reset signal (reference timing signal) can be generated in the shortest pitch reset time because all pitch timing is constantly generated.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a recording device capable of setting a plurality of latent image areas, and in particular, the present invention relates to a recording device that can set a plurality of latent image areas, and in particular, the reference timing is adjusted according to changes in pitch division corresponding to document size, LDC mode, etc. The present invention relates to a reference timing signal generating device for a recording device that changes a signal instantaneously.

[Conventional technology]

2. Description of the Related Art In recent years, recording devices such as copying machines and facsimile machines have made remarkable progress in terms of high image quality, multi-functionality, and high reliability, and have become popular in various fields. However, the needs of users are diverse, and it is necessary to meet the demands for high image quality, multifunctionality, and high reliability, as well as lower costs, lower energy consumption, and faster speeds. From this point of view, for example, taking a copying machine as an example, it has been proposed that a photosensitive material can be divided into a plurality of copy frames, and a latent image can be formed in each frame. By the way, when forming a latent image on a photosensitive material,
In order to form an image at a predetermined position on the photosensitive material, it is necessary to create a reference timing signal, that is, a pitch reset signal, and when the number of copy frames, that is, the number of pitch divisions is changed, the image forming area Since the position of the signal is changed, the reference timing signal must also be changed. Conventionally, when changing the pitch division, the timing signal used as the reference was changed by waiting for the detection of the next reference position on the photosensitive material, such as a belt hole, and then resetting the timer from there. It was creating a signal.

[Problems to be solved by the invention] However, when the paper size changes due to, for example, a MIX original, or when copying is finished in the automatic paper selection mode in the platen mode, it is necessary to set an original of a different size again before entering the standby state. When the cause of pitch division change occurs, such as changing the paper size or changing the magnification, such as when pressing the start key (list foot), the timer is set to wait for the next belt hole to be detected. If you re-create the pitch recent signal,
A time delay of up to one rotation of the photosensitive material occurs, resulting in a decrease in work efficiency, and it is not always possible to fully meet the demands of users who want to perform copying operations quickly.

The present invention is intended to solve the above-mentioned problems, and provides a reference timing signal generating device for a recording device that can generate a pinch reset signal in the shortest time when a cause for pitch division change occurs. The purpose is to

[Means to solve the problem]

To this end, the reference timing signal generating device of the recording apparatus of the present invention, as shown in FIG. , a reference timing signal creation means 02 for creating a reference timing signal, and the number of latent image areas can be changed without waiting for the next reference position detection; The timing process is performed to generate a pinch reset signal that should be generated for one rotation of the photoconductor, and the timing process is performed in the internally generated M/C clock interrupt process.
The generation process of the pitch recent signal to be generated around the circumference depends on the number of latent image forming areas and the LDC mode, and also on the photoreceptor 1.
A series of timers are set in response to all pitch resets that should occur during a lap, and the pitch pointer is used to determine whether or not the pitch reset timing at the time of timeout corresponds to the current pitch.

Further, the reference timing signal creation means creates a reference timing signal by referring to an image forming reference timer table 03 prepared according to the number of latent image areas, the LDC mode, and the magnification, and generates a reference timing signal using the M/C clock every one revolution of the photoreceptor. Correct the variation in. In addition, when the reference position of the photoconductor is a belt hole, the belt hole is detected when the M/C clock count value, which is incremented at every M/C clock interrupt during the belt hole sensor ON period, is greater than or equal to a predetermined value and less than or equal to a predetermined value. Under certain conditions, belt holes are detected at every M/C clock interrupt, and whether or not the detected belt holes are abnormal is checked by interval processing at predetermined time intervals.

[Effect]

The reference timing signal generating device of the recording apparatus of the present invention stores the M/C clock value corresponding to the time from the detection of the reference position on the photosensitive material until the leading edge of each copy frame reaches the pitch generation position in the image forming reference timer table. For example, the M/C clock value is made to correspond to the incremented bore value from the minimum to the maximum M/C clock value, and the M/C clock is counted based on the belt hole detection time, and the count value is the image forming value. When the cent value becomes the same as each cent value in the reference timer table, it is determined whether or not it is the corresponding pitch reset occurrence timing according to the current pitch division number, LDC mode, LDC 200% magnification, etc. indicated by the pointer, and the pitch reset is performed. Since all pitch reset timings are always generated, no matter when a pitch change request is made, it is possible to generate a pitch recent signal at the shortest pitch reset timing. .

In addition, belt hole detection is determined to be normal when the M/C clock counts over a predetermined value and below a predetermined value, thereby preventing false detection due to noise. By performing hole detection, it is possible to perform highly accurate detection without using an interrupt terminal. [Example] The present invention will be described in detail below based on an example.

Table of Contents In this embodiment, a copying machine will be explained as an example of a recording device. Prior to the explanation, a table of contents regarding the explanation of this embodiment will be shown. In the following description, (1) and (IT) are sections that outline the overall configuration of a copying machine to which the present invention is applied, and within that configuration, there are sections that explain the present invention in detail. This is item (III).

(1) Overview of the device (1-1) Device configuration ([-2) Functions and characteristics of the system Cl-3) Configuration of the electrical control system of the copying machine (1-4)
Serial communication method (1-5) State division (II) Specific configuration of each part (It-1) Optical system (n-2) User interface (II-3) Paper transport system (II-4) Automatic document feeder (H-5) Sorter (iff) Belt rotation Cm-1) Belt rotation overview (I[[-2) Imaging module (III-3)
Marking system (III-4) Explanation of each element around the belt (III-5
) Generation of reference timing signal (main part of the present invention) (1-1) Device configuration FIG. 2 is a diagram showing an example of the overall configuration of a copying machine to which the present invention is applied. be.

A copying machine to which the present invention is applied can be equipped with several additional devices to a base machine 1, and the base machine 1 has a basic configuration including a platen glass 2 on which an original is placed. is arranged, and the optical system 3 and the marking system 5 are arranged below it. On the other hand, the base machine 1 is equipped with an upper tray 6-1, a middle tray 6-2, and a lower tray 6-3, and all of these paper feed trays can be pulled out to the front to improve operability. The layout space of the copying machine is saved, and the copying machine has a neat design that does not protrude from the head machine 1.

Further, an inverter 9.10 and a duplex tray 11 are arranged in the paper transport system 7 for transporting the paper in the paper feed tray. Furthermore, a user interface 12 consisting of a CRT display is mounted on the base machine 1, and a DADF (duplex automatic document feeder) 13 is mounted on the platen glass 2. Further, the user interface 12 is of a stand type, and a card device can be attached to the bottom thereof.

Next, the additional devices of the base machine 1 will be listed. DADF1
Instead of 3, use RDH (recirculating document handler: a device that returns the document to its original feeding state and automatically repeats document feeding) 15 or a normal ADF (auto document feeder: automatic document feeder), editor pad (coordinate input It is also possible to install either a platen with a device or a platen cover. Further, on the supply side of the paper transport system 7, an MSI (multi-sheet inserter: manual feed tray that can place multiple sheets of paper at once) 16 and an HCF (high-capacity feeder: large-capacity tray) 17 can be installed. Yes, one or more sorters 19 can be disposed on the discharge side of the paper transport system 7. In addition, when the DADF 13 is installed, the simple catch tray 20 or the sorter 19 can be installed, and when the RDH 15 is installed, the offset catch tray 21, which alternately stacks the copied 1 & Il pairs, A finisher 22 that staples each set of copies can be attached, and a folder 23 having a paper folding function can also be attached.

(I-2) Functions and Features of the System (A) The present invention provides a wide variety of functions that meet the needs of users, fully automates the copying process from start to finish, and provides the user interface 12 with the A major feature of the system is that it can be easily operated by anyone by displaying functions, execution conditions, and other menus on a CRT display.

Its main function is to change the display screen on the CRT display to classify it into basic copy, advanced copy and specialized copy modes, and display menus for selecting functions and setting execution conditions in each mode. , it is possible to manually move the cascade of screens to select and specify functions and input execution condition data.

The functions of the copying machine to which the present invention is applied include the following main functions:
It has automatic functions, additional functions, display functions, diagnostic functions, etc.

As for the main functions, it can be used not only for standard paper sizes of A6 to A2 and B6 to B3, but also for non-standard paper sizes, and as described earlier, it has a three-stage built-in tray.

In addition, it is possible to adjust the fixed magnification in 7 stages, arbitrary magnification adjustment in 1% increments, and fine adjustment in 0.15% increments between 99% and 101%. Furthermore, there are a density selection function in 7 fixed levels and photo mode, a duplex function, a left and right binding margin setting function in the range of 1 mm to 16 mm, a pilling function, etc.

Automatic functions include automatic paper selection according to the original size, magnification selection when paper is specified, density control, start when the fuser is ready after power on, and clear and power after a certain period of time after copying is complete. It has functions such as save.

Additional functions include composite copy, interrupt, preheating mode, clearing the set number of sheets, clearing all to auto mode, information explaining the function, P key for using an IC card, maximum lock document return to limit the number of set sheets, etc. Full job recovery using DADI4, purge to eject paper other than the jammed area, full copy without blurring, editor to copy or delete parts of the original,
A job program that calls and processes jobs one by one.
There are interleaf sheets that insert blank sheets one by one between copies, and center eraser/frame eraser used for books.

The display function uses a CRT display, etc. to provide the operator with information on jams, paper remaining, toner remaining, recovered toner full, user waiting time to warm up, function selection inconsistencies, and machine status. It has functions such as displaying messages.

In addition, as a diagnostic function, initialization of NVRAM, input check, output check, hysteresis file such as the number of jams and number of paper feeds, setting of initial values used for marking and process codes around the photosensitive material belt, registration gate on timing. It has functions such as adjusting the settings and setting the configuration.

Furthermore, as an option, MS
I, HCF, second development colors (red, blue, green, brown)
, editor, etc. can be equipped as appropriate.

(B) Features The entire system of the present invention having the above functions has the following features.

(a) Achievement of power saving A high-speed, high-performance copying machine is realized with 1.5kVA. Therefore, 1.5kVA in each operating mode
We have decided on a control method to achieve this, and also decided on power distribution by function to set target values. In addition, an energy system table is created to determine energy transmission routes, and energy system management and verification are performed.

(b) Lower costs In addition to making expensive parts in-house, improving technology and standardizing them, we are also working to reduce art supplies costs by improving the hardware of art supplies and reducing toner consumption.

(c) Improved reliability We aim to reduce component failures and extend lifespan, clarify in/out conditions for each parameter, reduce design defects, and
We aim to achieve 00 kCV nomenclature.

(d) Achievement of high image quality This apparatus uses microcarriers made of ferrite for toner particles to make them finer and develops them using a repulsive magnetic field. The photoreceptor is a high-frequency panchromatic organic photosensitive material belt formed by applying multiple layers of organic photosensitive material, and a Victorian mode that makes full use of set points allows for midtones to be expressed.

These things will improve generation copy,
By reducing black spots, it achieves unprecedented high image quality.

(E) Improved operability It has a fully automatic mode in which copies are executed in a predetermined mode by pressing the start key just by setting the original and inputting the number of copies, and the screen is divided into basic copy, advanced copy, and specialized copy. including setting the copy mode by
Various mode settings can be selected according to the user's requests. These user interfaces are C
This is done using the RT display and a small number of keys and LEDs placed around it in correspondence with the screen, making mode setting possible with easy-to-read display menus and simple operations. Further, by storing the copy mode, its execution conditions, etc. in advance in a nonvolatile memory or an IC card, it is possible to automate predetermined operations.

(C) Example of differentiation In a copying machine to which the present invention is applied, the functions of the copying machine can be controlled by a program stored in an IC card. Therefore, by changing the program stored in the IC card on a card-by-card basis, it becomes possible to differentiate the use of the copying machine. This will be explained using some easy-to-understand examples.

The first example is when a multi-tenant building is equipped with a copy machine that is shared by multiple companies, or even within a single company or factory, there are copy machines that are shared between different departments. Explain the case. The latter joint use is necessary for budget management, and conventionally, devices such as copy risers have been used to manage usage in each department.

This copying machine is relatively equipped with a base machine 1 shown in FIG. Assume that the copying machine has an advanced system configuration. Among the shared users, some persons or departments may require the DADF 13 or sorter 19, while others may not require any additional equipment.

If multiple large departments or departments with different usage patterns try to decide on the cost burden of copying machines based only on their own copy volumes, large companies or departments that only make low-volume copies will need copying machines equipped with various additional devices. This makes it difficult to coordinate with large departments or departments that want to make advanced use of copying machines.

In such a case, IC cards should be prepared according to the usage pattern of each person or each department, and the person or department who wants advanced functions will have to pay more of the basic costs and have many functions. All you have to do is make it available for use. For example, the owner of the most advanced IC card can set the IC card in the IC card device and operate the copying machine to remove the DADF L 3, sorter 19, supply tray (6-1 to 6-3), and The duplex tray 11 can be used freely, and office efficiency can also be improved. On the other hand, those who do not need to sort copy paper can cut costs by omitting the sorting program, setting an IC card, and using only the can-can tray 20.

As a second example, a case will be explained in which a copying business operates a self-copying service shop using an IC card.

A plurality of copying machines are arranged in the store, and an IC card device 22 is attached to each copying machine. The customer requests an IC card according to Service B, sets it in the copier of his/her choice, and makes a self-service copy. Customers who are unfamiliar with copying machines can request an IC card that is programmed to display operating instructions, and by inserting this card, various operating information can be displayed on U+12, ensuring that copying operations can be carried out without error. can.

Whether or not to use DADF 13 and whether or not to perform multicolor recording can also be determined by the IC card provided.
It is also possible to restrict the types of devices used, making it possible to manage customers according to the price. Furthermore, since the actual status of copying operations, such as the number of copies and the size of the copying paper used, can be recorded on the IC card, billing for fees becomes easier, and detailed services such as discounts on copying fees for regular customers are also possible. .

As a third example, a service using an IC card storing a program for a specific user will be described. For example, in patent offices, when considering patent publications that have been reduced by photolithography, it is necessary to make copies of the original size.
I have a job where I have to make copies at a relatively large enlargement rate of 0.00%. Furthermore, when creating drawings to be submitted to government offices, the original drawings are reduced or enlarged in small increments in order to meet the requests. In addition, departments that make copies of resident records, such as city halls or ward offices, remove information about people who are not eligible for claims and areas that should be kept confidential to protect individual privacy. or create an excerpt.

As described above, some users have a demand for using copying machines in special ways. If the functions of the copying machine were set to satisfy all of these requirements, the console panel would become complicated and the ROM inside the copying machine would become large. Therefore, by preparing an IC card for each specific user and having the user set the IC card, it is possible to realize a copying machine that has the functions most suitable for that user.

For example, in the case of a patent office, by purchasing a dedicated IC card, it becomes possible to easily select a fixed magnification of 200% in addition to the usual several types of magnification. Furthermore, it becomes possible to set the reduction ratio in steps of, for example, 1% within a range that requires fine adjustment. Furthermore, the department issuing resident records can now use keys such as a numeric keypad to instruct the type of resident record and fields and items to be deleted on a display such as a liquid crystal display, and then press the start button. By pressing this button, only the desired range of the original will be copied, or only the necessary parts will be edited and recorded.

(1-3) Configuration of electrical system control system of copying machine FIG. 3 is a diagram showing the configuration of a subsystem of a copying machine to which the present invention is applied, and FIG. 4 is a diagram showing the hardware configuration using a CPU.

A copying machine system to which the present invention is applied includes an SQMGR subsystem 32 on a main board 31, as shown in FIG.
, CHM subsystem 33.1 MM subsystem 34,
Four subsystems consisting of the marking subsystem 35, the surrounding U/I subsystem 36, and the INPUT
Subsystem 37, OUTPUT subsystem 38
, an OPT subsystem 39, and an IEL subsystem 40. And SQMGR subsystem 32
On the other hand, since the CHM subsystem 33 and 1MM subsystem 34 are executed by software under the main CPU 41 shown in FIG. 4 together with the SQMGR subsystem 32, there is no need for communication between the subsystems (indicated by solid lines). connected with. However, other subsystems are operated by separate CPUs from the main CPU 41.
Since it is running with the software below, it is connected via a serial communication interface (shown as a dotted line). Next, these subsystems will be briefly explained.

The SQMC;R subsystem 32 receives copy mode setting information from the U/I subsystem 36, and issues work instructions to each subsystem while synchronizing each subsystem so that the copy work can be performed efficiently. It is a sequence manager that not only issues information but also constantly monitors the status of each subsystem and quickly assesses the situation when an abnormality occurs.

The CHM subsystem 33 is a subsystem that controls the paper storage tray, duplex tray, manual feed tray, copy paper feed control, and copy paper purging operation.

The 1MM subsystem 34 is a subsystem that performs panel division on the photosensitive material belt, control of running/stopping of the photosensitive material belt, control of the main motor, and other controls around the photosensitive material belt.

The marking subsystem 35 is a subsystem that controls the potential of the corotron, exposure lamp, developing machine, sensitive material heald, and toner density.

The U/T subsystem 36 is a subsystem that performs all user interface control, machine status display, job management such as copy mode determination, and job recovery.

The INPUT subsystem 37 is an automatic document feeder (DA).
DF), semi-automatic document feed (SADF), large size (
A2) document feed (LDC), computer form document feed (CFF), automatic 2-sheet document feed (2-UP)
This is a subsystem that controls the automatic document feeding (RDH), and detects the document size.

The OUTPUT subsystem 37 controls the sorter and finisher, outputs copies in sorting, stacking, and non-sorting modes,
This is a subsystem that performs binding output.

The OPT subsystem 39 is a subsystem that controls scanning, lens movement, shutter, and PIS/N0N-PIS during document exposure, and also performs carriage movement during LDC mode.

The placement subsystem 40 is a subsystem that erases unnecessary images on the photosensitive material belt, erases the leading and trailing edges of images, and erases images according to the editing mode.

The above system is configured with seven CPUs shown in FIG. 4 as the core, and can flexibly respond to combinations of the base machine I and additional devices surrounding it.

Here, the main CPU 41 includes software for the 7SQMGR subsystem 32, the CHM subsystem 33, and the 1MM subsystem 34 on the main board of the base machine 1, and is connected to each of the CPOs 42 to 47 via a serial bus 53. These CPUs 42 to 47 correspond to each subsystem connected by the serial communication interface shown in FIG. 3 on a one-to-one basis. Serial communication is 100
The communication is carried out between the main CPU 4t and each of the other CPUs 42 to 47 according to a predetermined timing, with m5ec as one communication cycle. Therefore, for signals that mechanically require strict timing and cannot match the serial communication timing, an interrupt port (INT terminal signal) is provided for each CPU, and the serial bus
Interrupt processing is performed by a hotline different from 3. That is, for example, 64 cpm (A4LEF), 309 mm
When copying is performed at a process speed of /sec and the register gate control accuracy is set to ±1mm,
Some jobs occur that cannot be processed in the communication cycle of 100 m5ec as described above. A hotline is required to guarantee the execution of such jobs.

Therefore, since this copying machine can be equipped with various additional devices, it is also possible to adopt a system configuration corresponding to each of these additional devices for software.

One of the reasons for adopting such a configuration is () If the operation control programs for all these additional devices were to be prepared in the base machine 1, the amount of memory required for this would be enormous. By putting it away. Also, (i
i) If a new additional device is developed in the future or the current additional device is improved, the ROM in the base machine 1 (
This is to make it possible to utilize these additional devices without replacing or expanding the read-only memory.

For this reason, the base machine 1 has a basic storage area for controlling the basic parts of the copying machine, and an additional note 11 fJ area for storing the program loaded from the IC card together with the functional information of the present invention. Additional storage area includes DAD
Various programs such as the F13 control program and the U112 control program are stored. Then, when an IC card is set in the IC card device 22 with a predetermined additional device attached to the base machine 1,
A program necessary for the copying operation is read out through U112 and loaded into the additional storage device. This loaded program controls the copying operation in cooperation with the program written in the basic storage area, or has a priority position over this program. The memory used here is non-volatile memory consisting of random access memory backed up by batteries. Of course, other storage media such as IC cards, magnetic cards, floppy disks, etc. can also be used as nonvolatile memory. In order to reduce the operational burden on the operator, this copier allows settings such as image density and magnification to be preset, and these preset values are stored in non-volatile memory. ing.

(1-4) Serial Communication Method FIG. 5 is a diagram showing the transfer data structure and transmission timing of serial communication, and FIG. 6 is a time shard showing mutual communication intervals in one communication cycle.

In the serial communication performed between the main CPU 41 and each CPU (42 to 47), data amounts as shown in No. 51m(a) are allocated to each of them. In the same figure (a), for example, in the case of Ul, the transmission data TX from the main CPU 41 is 7 bytes, the reception data RX is 15 bytes, and the next slave, that is, the optical C
Transmission timing ti to PU45 ((C) in the same figure)
) is 26m5. According to this example, the total amount of communication is 86 bytes, and at a communication speed of 9600 BPS, the cycle is about 100 m5. The data length is composed of a command, a command, and data, as shown in FIG. 2(b). When the transmission and reception using the maximum data length shown in FIG. 6(a) is targeted, the entire communication cycle is as shown in FIG. Here, 96008P
From the communication speed of S, the time required to send 1 byte is 1.
2mS, and the time from when the slave finishes receiving until it starts transmitting is 1mS, and as a result, 100mS is 1mS.
It is called a communication cycle.

(1-5) State division FIG. 7 is a diagram showing the state division of the main system.

State division divides the state from power ON to copy operation and after the copy operation is completed into several parts, determines the jobs to be performed in each state, and moves to the next state if all jobs in each state are not completed. This is to ensure efficiency and accuracy of control by ensuring that the main system is not in any state. Find out what you are doing and decide what you should do. Each subsystem is also divided into states, and a flag is similarly determined corresponding to each state, and the main system refers to these flags to understand and manage the state of each subsystem.

First, when the power is turned on, the processor enters a state of initialization and determines whether it is in diagnosis mode or user mode (copy mode). Diagnosis mode is a mode used by service personnel for repairs, etc., and performs various tests based on conditions set in NVM.

In the initialization state in the user mode, initial settings are performed based on the contents of NVM. For example, the carriage is set at the home position, the lens is set at 100% magnification, and each subsystem is commanded to initialize. When initialization is complete, it transitions to standby.

Standby is when all subsystems have finished their initial settings and
This is the state until the start button is pressed, and the message "Please wait" is displayed on the fully automatic screen. Then, the Colts lamp is turned on and the fuser idle rotation is performed for a predetermined period of time.
When the fuser reaches the predetermined control temperature, U/I
displays "You can copy" in the message. This standby state takes about several tens of seconds when the power is turned on for the first time.

Setup is a preparatory state for copying which is activated by pressing the start button, the main motor and sorter motor are driven, and constants such as V DDP of the photosensitive material belt are adjusted. Also, the ADF motor turns ON, the feeding of the first document starts, the first document reaches the registration gate, the document size is detected, the tray and magnification are determined in the APMS mode, and the ADF document is placed on the platen. be included. Then, the second document from the ADF is sent to the registration gate, and a transition is made to cycle up.

Cycle up is a state in which the belt is divided into several pinches and panel management is performed until the first panel reaches the get park point. That is, the pitch is determined according to the copy mode, the magnification is notified to the optical subsystem, and the lens is moved. Then, the CHM subsystem and 1MM subsystem are notified of the copy mode, and when the magnification cent is recognized, the scan length is determined based on the magnification and paper size and is notified to the optical subsystem. Then, the marking subsystem is notified of the copy mode, and when the marking subsystem has finished starting up, the 1MM subsystem checks the panel L/E determined by the pinch, and the first copy panel is found and the get park point is reached. When you reach it, you become a Get Park Ready and enter the cycle.

The cycle is in the copying state, and the ADC (Auto+
watic density control)
, AE (Automatic Exposure
), the copy operation is repeated while performing DDP control, etc. Then, when R/L=count number of sheets is reached, originals are exchanged, and when this is done for a predetermined number of originals, a coincidence signal is output and cycle down is started.

Cycle down is a state in which carriage scanning, paper feeding, etc. are finished, and the copy operation is cleaned up. Each corotron, developing machine, etc. are turned off, and the panel next to the last used panel is stopped at the stop park position. Manage the panels so that only certain panels are used and do not cause fatigue.

After this cycle down, the machine normally returns to standby, but if you press the start key again while copying in platen mode, the machine returns to set-up. Furthermore, even from set-up or cycle-up, if a cycle-down factor such as a jam occurs, a transition is made to cycle-down.

Purge is the state when a jam occurs, and when the jammed paper is removed, the other papers are automatically ejected. Normally, when a jam occurs, any state transitions from cycle down to standby to purge. Then, when the purge ends, it transitions to standby or set-up, but if a jam occurs again, it transitions to cycle down.

Held-down occurs when a jam occurs on the tray side from the picking point, and the belt drive is stopped by cutting the belt clasp, and the paper ahead of the belt can be ejected.

A hard down is when an interlock is opened, resulting in a dangerous situation, or when a machine clock failure occurs, resulting in loss of control. J supply is cut off.

Then, when these belt-down and hard-down factors are removed, a transition is made to standby.

(n=-1) Optical system FIG. 8(a) is a schematic side view of the optical system of the copying machine, and FIG.
) is a plan view, and the same figure (c) is a side view in the XX direction of figure (b). The scanning exposure device 3 of this embodiment moves the second scanning system B in the opposite direction when the first scanning system A scans the document, and moves the image onto the photosensitive material at a speed faster than the moving speed of the photosensitive material 4. A PI3 (Preset Imaging System) method is adopted for exposing the image to light, and a method is adopted in which the second scanning system B is fixed and the first scanning system A is movable independently.

In FIG. 8(a), the first scanning system A includes an exposure lamp 1
02 and a first mirror 103
01, and a second carriage 105 having a second mirror 106 and a third mirror 107, and scans an original placed on a platen glass 2. On the other hand, the second scanning system B includes a third carriage 109 having a fourth mirror 110 and a fifth mirror 111, and a fourth carriage 112 having a sixth mirror 113. Also, the third
A lens 108 is arranged on the optical axis between the mirror 107 and the fourth mirror 110, and is moved by a lens motor according to the magnification, but is fixed during scanning exposure.

These first scanning system A and second scanning system B are driven by a carriage motor 114 which is a DC servo motor. Transmission shafts 116 and 117 are arranged on both sides of the output shaft 115 of the carriage motor 114, and a timing belt 119a is installed between a timing pulley 115a fixed to the output shaft 115 and timing pulleys 116a and 117a fixed to the transmission shaft 116 and 117. , 119b are stretched.

Further, a capstan pulley 116b is fixed to the transmission shaft 116, and a driven roller 120 is disposed opposite to the capstan pulley 116b.
A first wire cable 121 is connected between a and 120b.
a is stretched in a sash shape, and the wire cable 121a
The first carriage 101 is fixed to the
The wire cable 121a is wound around a reduction pulley 122a provided on the second carriage 105, and when the carriage motor 114 is rotated in the direction of the arrow shown in the figure, the first carriage 101 rotates at a speed of 1 in the direction of the arrow shown in the figure. At the same time, the second carriage 105 moves at speed ■1/2.
so that they move in the same direction.

In addition, a timing boolean lJ fixed to the transmission shaft 117,
117b and the timing pulley 123a of the transmission shaft 123 disposed opposite thereto, there is a timing bell) 11.
9c is tensioned, and the capstan pulley 1 of the transmission shaft 123
23b and a driven roller 120c arranged opposite thereto.
A second wire cable tzib is stretched between them. The fourth carriage 112 is fixed to the wire cable 121b, and the wire cable 121
b is the reduction pulley 1 provided on the third carriage 109;
22b, and when the carriage motor 114 is rotated in the direction of the arrow shown in the figure, the fourth carriage 11
2 moves in the direction of the arrow shown in the figure at a speed v2, and the third carriage 109 moves in the same direction at a speed V2/2.

FIG. 8(b) is a plan view for explaining the power transmission mechanism of the optical system of the copying machine shown in FIG. 8(a).
17 is provided with a PIS clutch 125 (electromagnetic clutch) for transmitting the rotation of the timing boolean IJ 117a to the timing pulley l 17b.
When the +s clutch 125 is de-energized, it is engaged and the rotation of the rotating shaft 115 is transmitted to the transmission shafts 117 and 123.

Further, when the PTS clutch 125 is energized and released, the rotation of the rotary shaft 115 is not transmitted to the transmission shafts 117 and 123.

In addition, as shown in FIG. 8(c), the timing pulley 1
A locking protrusion 126a is provided on the side surface of the LD 16a.
When the C-lock solenoid 127 is turned on, the engagement piece 126b
engages with the engagement protrusion 126a, fixes the transmission shaft 116, that is, fixes the first scanning system A, and turns on the LDC lock switch 129. Further, a locking protrusion 130a is provided on the side surface of the timing pulley 123a, and when the PIS lock solenoid 131 is turned on, the engagement piece 130b engages with the engagement protrusion 130a, and the transmission shaft 12
3 is fixed, that is, the second scanning system B is fixed, and the PIS rotor isolator 132 is turned on.

In the scanning exposure apparatus configured as described above, the exposure method of the PIS (Pre-Scene Imaging System) mode and the NON'-PIS mode is selected by engaging and releasing the PTS clutch 125. In the PIS mode, for example, when the magnification is 65% or more, the P, +3 clutch 125 is engaged and the second scanning system B is moved at a speed of 2, thereby changing the exposure point of the photosensitive material heald 4 to the photosensitive material belt 4. The scanning speed V of the optical system is changed to the process speed ■
, to increase the number of copies per unit time.

At this time, if the magnification is M, then v, = v, x3゜5/(3
, 5M-1), and M=1, ■, = 308.9mm/
s, then V+ = 432.5 mm/S. Also,
■2 is determined by the diameter of timing pulleys 117b and 123a, V, = (1/3 to 1/4) V, and tail. On the other hand, in N0N-PIs mode, for example, 64
% or less, the PIS clutch 125 is released and the PIS lock solenoid is turned on to fix the second scanning system B and scan with the exposure point fixed. This is because in the PrS method, the speed of the scanning system increases and the illumination power must also be increased during reduction, and an increase in the load on the drive system and the illumination power is avoided.

The lens 108 is mounted on a lens carriage 13 disposed below the platen glass 2, as shown in FIG. 9(a).
It is slidably attached to a support shaft 136 fixed to 5. The lens 10 is connected to a lens motor Z137 by a wire (not shown), and the lens motor Z
The rotation of 137 moves the lens 108 along the support shaft 136 in the Z direction (vertical direction in the figure) to change the magnification.

Further, the lens carriage 135 is connected to the support shaft 1 of the Heese example.
39 and is connected to the lens motor X140 by a wire (not shown).
The lens carriage 1 is rotated by the rotation of the lens motor X140.
35 in the X direction (horizontal direction in the figure) along the support shaft 139 to change the magnification. These lens motors 13
7.140 is a four-phase stepping motor. When the lens carriage 135 f-moves, the pinion 142 provided on the lens carriage 135 moves the lens cam 143.
This causes the large gear 144 to rotate and move the mounting base 146 of the second scanning system via the wire cable 145.

Therefore, the rotation of the lens motor X140 causes the lens 10 to
The distance between B and the second scanning system B can be set for a predetermined magnification.

Further, as shown in FIG. 9(b), a lens shutter 147 is provided on one side of the lens 108 so that it can be opened and closed by a link mechanism 148, and the lens shutter 147 is turned on and off during image scanning by turning on and off a shutter solenoid 149.
7 is open, and when the image scan is completed, it is closed. The reason why the lens shutter 147 is closed and the optical path is blocked except during image scanning is as follows.
To form a patch, ■When in PIS mode, the second scanning system B returns to catch up with the latent image formed on the belt surface material to prevent image immersion; ■When the platen cover is opened, the light-sensitive material The aim is to prevent fatigue caused by ambient light.

FIG. 10 shows a block configuration diagram showing an overview of the subsystem of the optical system. As mentioned above, the optical CPU 45 is connected to the main CPU 41 through serial communication and a hotline, and controls each camera, lens, etc. in order to form a latent image on the photosensitive material using the copy mode transmitted from the main CPU 41. is in control. The control power supply 152 is for logic (5V), analog (±15■), solenoid, clutch (24■
), and the motor power supply 153 is composed of 38V.

The carriage registration sensor 155 is connected to the first carriage 101.
When the first carriage 101 comes to the original registration position, the actuator 154 provided on the first carriage 101 is placed in a position where it does not step on the carriage registration sensor 155, and the actuator attached to the first scanning system A moves the carriage registration sensor 15.
If you miss step 5, a signal will be output. This signal is sent to the optical CPU 45 and serves as a reference for determining the position or timing for performing registration, and for determining the home position P upon return to the first scanning system. Additionally, a first home sensor 156a and a second home sensor 156b are used to detect the position of the carriage.
The first home sensor 156a is arranged at a predetermined position between the registration position and the stop position of the first scanning system A, and detects the position of the first scanning system A and outputs a signal. .

Further, the second home sensor 156b detects the position of the second scanning system and outputs a signal.

The rotary encoder 157 is connected to the carriage motor 114
It is of the type that outputs A-phase and B-phase pulse signals with a 901 phase shift depending on the rotation angle of the
The axial pitch of the timing pulley of the first scanning system is designed to be 0.1571 mm/pulse in terms of pulse/rotation.

The polarization solenoid 159 moves a polarization lens (not shown) in the vertical direction under the control of the CPU 45, and is confirmed by turning on the polarization switch 161 fixed in the optical path. The lens home sensor 161.162 is connected to the lens 10.
This is a sensor for detecting the home position of 8 in the X direction and the Z direction, and is arranged on the reduction side with a predetermined interval from the position at the same magnification.

The LDC lock solenoid 127 fixes the first scanning system A in a predetermined position under the control of the CPU 45, and the LDC lock switch 1 indicates that the first scanning system is locked.
29's on operation.

The PIS lock solenoid 131 locks the second lock solenoid when the PIS clutch 125 is released in the N0N-PIs mode.
This fixes the scanning system B, and confirms that the second scanning system is locked by turning on the PTS long switch 132.

The PIS clutch 125 is of a type that releases the clutch when energized and engages the clutch when not energized.
Reduces power consumption in S mode.

Next, control of the scan cycle of the optical system will be explained with reference to FIGS. 11(a) and 11(b). FIG. 11(,a) shows the relationship between the speed of the carriage motor 114 and time. This control scans the first scanning system A at a specified magnification and scan length, and is activated when a scan start signal is received from the hotline. An image scan count, which is the count of the encoder crotter from the registration sensor interrupt to the end of the scan, is calculated from the scan length data received from the main unit.

First, after setting the reference clock data corresponding to the magnification, the carriage motor is rotated in the scanning direction (CW) in step
), and in the speed mode, the DAC data is set every time an encoder pulse interrupts to perform acceleration control during scanning (step 2). Next, in step ■, the PLL (phase control) mode is entered, and if there is an interrupt signal indicating that the register sensor is off in step ■, the process proceeds to step ■, and here, when the encoder clock count number is several bases higher than the scan length mentioned above, the process proceeds to step ■. , cancel the PLL mode, set the speed mode, and apply reverse driving force to the carriage motor to decelerate it.

Next, in step 2, it is determined whether or not there is an interrupt from CW to CCW (reverse rotation signal), and if so, acceleration control is performed at the time of return in the speed mode (step 2).
), when the encoder count reaches the preset brake start point (step [phase]), deceleration control is performed at the time of return, and when the registration sensor is depressed, a scan end signal (high level) is sent to the main CPU ( Step■
), if there is a reversal signal again, the carriage motor is stopped (step @), and in the CPU, ■, ■, ■, ■, ■
The counter that counts the encoder crotch at the point is set to 0.
is being reset to.

Further, FIG. 11(b) shows opening/closing control of the shutter 147. Since there is a time lag between the on/off of the shutter solenoid and the fully open/closed state of the shutter, the shutter is controlled so that the solenoid is turned on just before the shutter passes the registration sensor, and the solenoid is turned off just before the end of the scan. First, the number of counts from the scan start until the shutter is turned on (opened) is called the shutter on count, and then the image scan count and the number of counts from the time when the shutter is turned off (closed) until the end of the scan (shutter off count). Calculate the difference between These shutter-on count and shuck-off count data are prepared in the ROM as a table. According to this method, since the scan count number is calculated from paper size data, there is no need to have a table of shutter-on counts and shutter-off counts for each paper size.

Next, image scanning is started, and when the encoder clock number exceeds the shutter-on count, the shutter is opened, and if there is a register-off interrupt, the encoder clock number and shutter-off count are compared here, and the encoder clock number is determined. When the shutter off count is exceeded, the shutter is closed and the image scan is completed.

([-2) User interface (U/I) (U-2
-1) Features of the user interface FIG. 12 is a diagram showing how the user interface using the display is installed, and FIG. 13 is a diagram showing the appearance of the user interface using the display.

Conventional user interfaces are mainly console panels equipped with keys, LEDs, and liquid crystal displays, such as back-lift types and those with message displays. A Battalit type console panel is a display board on which a fixed message has been placed at a predetermined position, and is made readable by selectively illuminating the display board from behind with a lamp or the like. The console panel is composed of, for example, a liquid crystal display element, and is designed to display various messages at any time without increasing the display area.

Which of these console panels to adopt is determined for each copying machine, taking into consideration the complexity of the system configuration and operability of the copying machine.

(A) Features of mounting position The present invention is characterized in that a stand-type display is used as the user interface, rather than using the conventional console panel as described above. If a display is adopted, it can be mounted three-dimensionally above the copying machine main body (pace machine) 1 as shown in FIG. By arranging it in the right corner of the copying machine main body 1, the size of the copying machine can be designed without considering the user interface 12, and the apparatus can be made more compact. Further, in a copying machine, the height of the platen, that is, the height of the device, is designed to be a comfortable height for setting a document, and this height regulates the height of the device. As mentioned earlier, conventional console panels are mounted on the top surface at this height, and the operating and display sections for selecting functions and setting execution conditions are placed at a fairly warm distance from the eyes. . In this regard, in the user interface 12 of the present invention, as shown in FIG. 12(C), the user interface 12 is located at a higher position than the platen, that is, close to eye level, so it is easier to see and the user interface 12 is located in front of the operator rather than below. Moreover, it is on the right side, making it easier to operate. Moreover, by bringing the height of the display closer to eye level, the lower side can be effectively used as a space for mounting the user interface control board and card device 24. Therefore, there is no need to make structural changes to attach the card device 24, and the card device 24 can be additionally equipped without changing the appearance at all, and at the same time, the display can be attached in a position and height that is easy to see. Furthermore, although the display may be fixed at a predetermined angle, it is of course possible to change the angle. In this way, unlike conventional console panels that are mounted flat on the front side of the platen, the front direction can be easily changed.
As shown in Figure 12 (C), the display screen should be oriented slightly upward to match the operator's line of sight, and
), it is possible to provide a user interface 12 that is even easier to see and operate by oriented toward the left, that is, toward the upper center (direction of the operator's eyes). By employing such a configuration, especially in a compact device, an operator can operate the document set and the user interface without moving from the center of the device.

(B) Characteristics on the screen On the other hand, even when using a display, the amount of information needed to provide information corresponding to multi-functions increases, so if you think about it simply, a large display area is required, making it more compact. This has the aspect that it becomes difficult to respond to the situation. By adopting a compact size display, providing all the necessary information on one screen is not only a matter of display density, but also makes it easier for the operator to see.
It is also difficult to provide an easy-to-understand screen. Therefore, we have taken various measures to display the information in an easy-to-understand manner even though it is compact in size.

For example, in the user interface of the present invention, the display screen is switched according to the copy mode, and menus for selecting functions and setting execution conditions are displayed in each mode. You can move it, set options, and input execution condition data. In addition, depending on the menu option, detailed items are displayed in a pop-up (superimposed display or window display) to expand the displayed content.

As a result, even if there are many selectable functions and setting conditions, the display screen can be kept clean and the operability can be improved. In this way, the present invention has devised techniques for screen division, area division on each screen, brightness adjustment, gray display, and other display modes, and furthermore,
By skillfully combining these functions, we can simplify the configuration of the operating section, diversify and simplify the display control, display contents, and operator power, and solve the problem of making the device both compact and multifunctional. There is.

FIG. 13 shows the appearance of a user interface constructed using a CRT display. In this example, keys/LED boards are arranged below and in front of the CRT display 301 on the right side. In the selection mode screen, the screen is divided into multiple areas.
A selection area is provided as one, and the selection area is further divided vertically so that each can be selected and set as a cascade area. Therefore, on the key/LED board, cascade keys 319-1 to 319-5 for cascade selection settings are placed below the selection area of the vertically divided screen, and mode selection keys 319-1 to 319-5 are used to switch the selection mode screen. 308-310 Other keys (302-304.30
6.307.315-318) and LED (305,3
11 to 314) are arranged on the right side.

(TI-2-2) The display screen configuration screens include a selection mode screen for selecting the copy mode, a review screen for checking the copy mode setting status, and a full screen for copying in standard mode. It consists of an automatic screen, an information screen that provides explanations about the multifunctional copy mode, and a jam screen that appropriately displays the location of a jam when it occurs.

(A) Selection mode screen FIG. 14 is a diagram for explaining the selection mode screen.

As the selection mode screen, three screens are set as shown in FIGS. 14(a) to 14(C): basic copy, advanced copy, and specialized copy.
The display will be switched to the RT display. Of these screens, the basic copy screen categorizes and groups the most commonly used functions, and the advanced copy screen categorizes and groups the next most commonly used functions. The specialized copy screen is a grouping of special specialized functions.

Each selection mode screen basically consists of a message area A consisting of two lines from the top, a setting status display area B consisting of three lines,
It is used by dividing it into a selection area C consisting of nine lines. Message area A displays J-code messages when there is a conflict in the copy execution conditions, J-code messages when there is a hardware failure that requires contacting a service person, and C-code messages that call for various precautions to the operator. be done.

Among these, the J code message has a check table for combinations of copy execution conditions based on the settings of each cascade, and when the start key 318 is operated, the table is checked and output if there is a conflict in the copy mode. be done. The setting status display area B displays the selection status of other modes, for example, the selection status of advanced copy and specialized copy with respect to the basic copy screen. In this selection state display, if the cascade state of the selection area C is other than the default (lower row), the cascade is displayed. In selection area C, cascade salt is displayed in the upper row,
The bottom of each cascade area is the default HD area, and the area above it is the non-default area, and each of the five cascade areas can be selected individually by operating the cascade key. Therefore, if no selection operation is performed, the default) nl area is selected, and the default state is the fully automatic copy mode. Further, the selection area is selected and set using lower cascade keys 319-1 to 319-5 corresponding to cascade areas divided vertically into five areas. The right side of the message area A is used as a count section for displaying the set count and maid count, and the lower line of the setting status display area B is used as a maintenance information section such as toner bottle full, toner replenishment, etc.

The contents of the cascade area of each selection mode screen will be explained below.

(B) Basic Copy The basic copy screen consists of a cascade of ``paper tray J,''``reduction/enlargement,'' ``duplex copy,'' ``copy density,'' and ``sorter,'' as shown in FIG. 14(a).

For "Paper Tray", automatic is the default,
In this case, a tray containing paper of the same size as the original is automatically selected. By using the cascade key, you can use areas other than the default to select the manual feed tray, large capacity tray, upper tray, middle tray, or lower tray.

Note that in the column of each tray, the paper size, type, and icon (pictogram) are displayed to make it easy to identify the paper stored therein, as shown in the figure. Paper can be set to be fed in the longitudinal direction or in a direction perpendicular to the longitudinal direction.

"Reduction/enlargement J defaults to same size, and you can select automatic, fixed, or arbitrary by operating the cascade key. With automatic, the magnification is automatically set according to the selected paper size. Copy.The magnification (vA magnification) can be set arbitrarily from 50% to 200% in 1% increments.For Fixed/Optional, a pop-up screen will display the specific setting target by operating the cascade key. Displayed, 50.7%, 70%, 81%, 100%,
A fixed magnification consisting of seven settings of 121%, 141%, and 200% can be selected, and an arbitrary magnification that continuously changes by 1% can be selected and set.

For "double-sided copy," one-sided is the default, and in addition to the default, you can select from two-sided to one-sided, two-sided to two-sided, and one-sided to two-sided in the relationship of original to copy. For example, double-sided→single-sided is a one-sided copy of a double-sided original, and one-sided→double-sided is a double-sided copy of a one-sided original. When making double-sided copies, the copy paper on which the first side has been copied is first stored in the duplex tray. The copy paper is then fed out again from this duplex tray and a copy is made on the back side.

``For copy density, automatic is the default setting, and there are seven density settings other than the default.You can also set the density in seven levels in the photo mode.These settings are made on the pop-up screen.

"Sorter" has copy reception as the default, and T-match and star as non-default.

You can choose. Collate mode is a mode in which copy sheets are sorted into each bin of the Sogoo, and stack mode is a mode in which copy sheets are stacked in order.

(b) Advanced copy The advanced copy screen consists of a cascade of "special original", "binding margin", "color", r-leaf paper, and "ejection side", as shown in FIG. 14(b).

"Special originals" include the function to copy large originals such as A2/83 (LDC), and the function to count the holes and copy one line at a time for originals output from a computer (CFFi).
computer form feeder), double copy function (2-UP) to copy two sheets of the same size onto one sheet of paper
can be selected other than the default.

The "binding margin" is 1mm at the right or left edge of the copy.
The "binding margin" is set in the range of ~16 mm, and it is possible to set right binding, left binding, and binding margin lengths other than the default.

"Color" defaults to black, and you can select red other than the default.

"Interleaf paper" is a function that inserts a blank sheet in the middle during OHP copying, and can be selected other than the default.

``For the ejection surface J, you can select a value other than the default to forcefully specify either the front surface or the back surface to eject the paper.

(C) Specialized Copy The specialized copy screen consists of a cascade of "Job Memory", "Edit/Composition", "Same Size Fine Adjustment", and "Erase Frame", as shown in FIG. 14(C).

"Job Memory" is a page program that uses a card, and allows you to register multiple jobs and automatically copy them by recalling them and pressing the start key. , its calling and registration can be selected other than the default.

"Edit/Composition" allows you to select an art book function and a composition function other than the default 0Edit function is a function for inputting data for editing using an editor etc. color, partial photos,
Partial deletion and marking color functions can be selected. The partial color is the specified 81J! i only color 1
Copy in color and copy the rest in black. Partial photo copies the photo to the specified area, and partial deletion prevents the specified area from being copied. With the marking color, when an area to be marked is designated, for example, a light color is recorded over that area to create an effect as if marking has been performed.

The compositing function is a function that uses a duplex tray to make one copy from two originals, and includes sheet compositing and parallel compositing. Sheet composition is a function that records both the first document and the second document in their entirety on one sheet of paper.
It is also possible to copy the first original and the second original in different colors. On the other hand, parallel composition combines the entirety of the second manuscript into the entirety of the first manuscript.
This function creates a composite copy on a single sheet of paper.

"1.1 magnification fine adjustment" is 0.15 at a magnification of 99% to 101%.
It is set in % increments, and you can select this function other than the default.

"Frame erase" does not copy the image information on the periphery of the document, but makes it appear as if a frame has been set around the image information. , you can set arbitrary dimensions and select a full-scale copy mode that does not erase edges other than the default.

(B) Other Screens FIG. 15 is a diagram showing an example of a screen other than the selection mode screen.

(B) Review screen The review screen displays the state of the copy mode selected on each of the above selection mode screens divided into three parts, and each selection is made as shown in FIG. 15(b). The cascade setting status of the mode screen is displayed on one screen. This review screen displays the selected item, that is, the cascade salt, and the currently selected mode, that is, the option. If the selected mode is the default, for example, the selected mode is a background light, and if it is other than the default, the normal brightness is displayed. It uses an inverted display.

(b) Fully automatic screen The fully automatic screen is a screen as shown in FIG. 15(a) when the power is turned on, when the preheating key 306 is operated in preheating mode, or when the all clear key 316 is operated. When displayed. This screen shows a state where all the cascades on the west side of each selection mode are set to default. On this screen, when the original is set on the platen as instructed, the number of copies is set using the numeric keys, and the start key 318 is pressed, paper of the same size as the original is selected and the set number of copies are executed.

(c) Information screen The information screen is a screen for providing an explanation screen for how to make copies, etc. for each of the copy modes as shown in FIG. 15(C), and is displayed by operating the information key 302. An explanation screen is displayed by inputting the information code displayed on this screen using the numeric keypad.

(d) Jam screen The jam screen is displayed over the screen that was displayed during copying, as shown in Figure 15(d), and is displayed by lowering the brightness of the original screen one rank at a time. I try to make the content clear.

(C) Display Mode The present invention can display the screen by dividing it into a plurality of screens and switching between them as explained in FIGS. 14 and 15.
By reducing redundant information at any given time, simplifying the 100 pages of information, and changing the display mode according to the display area of these layouts and their input settings, etc., we create a screen with accents that is easy to see and understand. ing. For example, the selection mode screen is divided into a message area (including the counter DI area), a setting status display area (including the maintenance information area), and a selection area, as explained above.
The display mode of each area is changed. For example, in the message area that includes the count section, the background is black and only the message text is displayed in high brightness, similar to the appearance of a bat-lid type console panel. Further, in the setting state display area, the background is displayed in a grid display, that is, in brightness and darkness at a predetermined uniform density consisting of donts, and the display portion of the cascade salt is displayed in reverse (the characters are dark and the background is bright). That is, this display represents each cascade salt as a card image. Furthermore, the bottom line of the setting status display area is used as a maintenance information area such as when the toner bottle is full or when replenishing toner.
Since this information is different in nature from the setting status display information, a display format similar to that of the message area is adopted to enable the difference to be clearly recognized.

In the selection area, the surrounding area is displayed as a mesh, and the entire cascade display area is displayed in gray with low brightness, and the options and cascade salts are displayed in reverse.

In addition to this display, the banks in the By area of the set options are displayed in high brightness (inverted display), and for example, on the basic copy screen, the background of the tray that runs out of paper in the cascade of paper trays is displayed in black. The characters are displayed with high brightness.

In addition, in the fully automatic screen shown in Figure 15 (al), the background of the display area is displayed with a dark mesh, and the area where each operation instruction such as "Set Original" is displayed with a bright mesh, and the border is bordered. This improves the clarity of the display and makes it easier to see.It goes without saying that the background display II can be freely changed and combined as appropriate.

In particular, when the background is displayed with high brightness (normal brightness with paper white), gray scale display with reduced brightness, or display with a predetermined brightness/darkness dot density, visual perception can be improved by edging the boundaries of the eW range as shown in the figure. It gives a three-dimensional feel and gives the image of a card. In this way, by performing border display while changing the display mode of the background of each area, the operator can clearly distinguish the display contents of each area, providing an easy-to-read screen. Furthermore, when displaying characters, by displaying them in reverse or blinking, it is possible to draw the user's attention to each piece of displayed information.

In addition to hacking character strings and changing the brightness of the characters as described above, the present invention adds icons (pictograms) to options, cascading salts, and other character strings to make them more imaginative. It is also distinctive in that it uses a distinctive display mode. For example, on the basic copy screen, the cascade salts "Reduce/Enlarge", "Double-sided copy", "
These are the ones added at the beginning of "copy density" and "sorter," and the ones added after the lower, middle, and upper paper sizes in the paper tray j selection. This icon conveys information visually to the user from a different perspective, that is, the accent of information is weakened by text strings alone, and depending on the content of the information, it is necessary to be more accurate and intuitive than text strings. It has a great advantage in that it can convey information to users.

(It-2-3) The key/LED board user interface is as shown in Figure 13.
Although it is composed of a T-display and a key/LED board, the present invention is configured to use the screen of the CRT display to display options and set them. L.E.
Efforts are being made to keep the number of D's to a minimum.

Mode selection keys 308 to 310 for screen switching and cascade key 31 for selecting each cascade area
Functions can be selected and set using eight keys numbered 9-1 to 319-5.

Therefore, if you operate the mode selection keys 308 to 310 to select the basic copy screen, advanced copy screen, or specialized copy screen, then the cascade keys 319-1 to
In addition to operating 319-5, all 89 functions can be selected by simply inputting numerical values using the numeric keypad 307, and copying can be executed according to the desired function. Cascade key 319-1
319-5 is a pair of upward movement key and downward movement key in order to select and set a function by moving the setting cursor up and down in each cascade area.

In this way, the selection mode screen is selected from the three mode selection keys 308 to 310 and only one of them is displayed, so it is difficult to know which mode selection key 308 to 310 has selected the screen. LEDs 311-313 are used for display. That is, when the mode selection keys 308 to 310 are operated to display the selection mode screen, the LEDs 311 to 313 corresponding to the mode selection keys 308 to 310 are lit.

When a large number of functions are provided, it becomes difficult for the user to remember and use all of the functions.Therefore, the information key 302 is used to provide a screen explaining how to make a copy for each copy mode. .This information at is executed as follows.First, press the information key 30.
When 2 is operated, a list of information codes is displayed on an information index screen as shown in FIG. 15(C). When the specified information code is selected and inputted on this screen using the numeric keypad 307, the screen moves to an information pop-up screen corresponding to that code, and an explanation screen for the copy mode is displayed there.

In addition, as shown above, the selection mode screen is divided into three, and selection settings for various functions defined on the three screens are performed, so you can check the overall setting status including other screens. You are also required to do so. Therefore, the review key 303 is used to check the setting state of such a full screen.

The dual language key 304 is a key for switching the language of the display screen. With internationalization, devices are often shared by users who use various different languages. Even in such an environment, in order to eliminate language barriers, for example, display data and font memory can be prepared in two languages, Japanese and English, and the display data and font memory can be switched by operating the dual language key 304. To output a display screen by freely switching between Japanese and English. Note that it is also possible to provide not only two languages but also a plurality of languages, and to switch between languages in a predetermined order by operating the dual language key 304.

The preheating key 306 is used to set a preheating mode in order to save power consumption when not in use and to enable a quick transition from the not in use state to a copy operation. Switch to fully automatic mode. Therefore, the LED 305 is used to indicate which state it is in.

The all clear key 316 is used to clear the copying machine, that is, to set it to the fully automatic mode set as the default for each selection mode screen, and displays the fully automatic screen. This is the content of the screen that informs the operator that the current copy mode is fully automatic, as shown in FIG. 15(a).

The interrupt key 315 is a key used when continuous copying is in progress and it is necessary to make another emergency copy, and when the interrupt processing is completed, it is used to return to the original copying operation. will also be canceled. LED3
14 indicates whether this interrupt key 315 is in an interrupt state or a released state.

The stop key 317 is used to stop the copying process, to set the number of copies, and to set the bins of the sorter.

The start key 318 is operated when the function selection and its execution conditions are completed and the copying operation is started.

(n-2-4) Control System Configuration of User Interface FIG. 16 is a diagram showing the hardware configuration of the user interface, and FIG. 17 is a diagram showing the software configuration of the user interface.

(A-) Hardware Configuration The user interface system equipped with the UlT CPU 46 basically includes a CRT board 331 and a CRT display 301 as hardware, as shown in FIG.
and a key/LED board 333. and,
The CRTi board 331 is the UlT CP that centrally controls the entire
U46, CRT display 301 $lI? 11 CRT controller 335, key/LED board 333
keyboard/display controller 33 that controls
6, and further includes a program memory (ROM) 337 for storing each of the above-mentioned programs as memory, a frame memory (ROM) 338 for storing frame data,
RAM339.2 sets of V-RAM (video RAM
) 340, a character generator 342, etc.

The CRT display 301 is, for example, 9 inches in size, and has a paper white display color and a non-glare surface treatment.

Using this size screen, 160mm (H) xl
Total number of dots 480 x 2 in 10mm (V) display area
40. If the dot pitch is 0.33 mm x 0.46 mm and the dot configuration of the tile (character) is 8 x 16, the number of tiles will be 60 x 15. Therefore, the kanji kana is 16
When displaying dots x 16 dots and alphanumeric characters and symbols using 8 dots x 16 dots, it is possible to display 30 x 15 characters using two tiles for kanji or characters. In addition, four gradations of normal brightness, gray 1, gray 2, and black level are specified for each tile, and displays such as reverse and plink are also performed.

The human input signal timing for such a display is 64 μs when the dot frequency r is IOMHz and 480×240.
The video data is processed for 48 μs with a horizontal synchronization signal period, and 15.3 μs with a vertical synchronization signal period of 16.90 m5.
Video data will be processed for 6m5.

The keyboard/display controller 336 is
The output of the clock generator 34G that is manually supplied to the I CPU 46 is divided into 1/4 by the counter 347 to obtain 2.7648.
A key/LED scan time of 4.98 m5 is created by inputting a MHz clock and further dividing the frequency to I/27 using a prescaler to make it 102 kHz.

If this scan time is too long, it will take a long time to detect the input, which will cause the problem that input data will not be captured when the key operation time by the operator is short, and conversely, if it is too short, the CPU operation frequency will be reduced. This will result in a decrease in throughput. Therefore, it is necessary to select the optimal scan time taking these situations into consideration.

(B) Software configuration The software configuration of the user interface is
As shown in the figure, there is a monitor with I10 management, task management, and communication protocol functions, a video controller with key human power management, screen output management functions, and functions such as job management, control, selection judgment, mode determination, etc. It consists of a job controller with a And regarding key human power, the video controller processes the physical information of the key,
The job controller recognizes the mode, checks acceptance conditions, and controls the job. For screen display, the job controller controls the screen based on machine status information, selection mode information, etc., and issues interface commands to the video controller.The video controller executes the commands to collect and draw images on the screen. Note that the key change detection unit 362 described below
, and other blocks that process, generate, and control data are each shown as a certain program unit (module), and these structural units are grouped together for convenience of explanation, and some are Of course, the inside may be constructed from a plurality of modules, or a plurality of modules may be constructed all at once.

In the video controller, the key change detection unit 362 performs double press check and continuous key press state detection on physical key information passed from the monitor using the physical key table 361. The key conversion unit 363 converts the currently pressed physical key detected in this way into a logical key (j#logical information), and checks the key acceptance condition of the logical key (current key). depends on the job controller. The conversion table 364 is used by the key conversion unit 36 at the time of conversion from this physical key to a logical key.
For example, even if the cascade key is the same physical key, the logical information differs depending on the screen, so the conversion from the physical key to the logical key is controlled by the display screen information of the display control data 367.

The screen switching section 368 receives a key acceptance signal and a logical key from the job controller, or directly receives a logical key from the key converting section 363 within the video controller, and displays whether the logical key calls a basic copy screen or an advanced copy screen, or a cascade screen. If it is a simple screen switching key that opens a pop-up screen by moving the key, and the key does not update the mode or state, the display control data 367
The display screen number is updated to the corresponding screen number. Therefore, the west side switching unit 368 stores a logical key for expanding the pop-up amplifier screen as a table, and when the logical key is operated and there is no other key power within 750 m5ec, the pop-up amplifier screen is expanded. Display control data 367 is updated. This process is used to prevent the pop-up screen from being expanded all at once in some cases where the option to temporarily expand the pop-up screen is selected by operating the cascade key during the selection process of a certain option. It is something that is done on a regular basis. Therefore, even if it is a logical key that opens a pop-up screen, 7
If there are other key personnel within 50m5ec, -
This will be ignored as a temporary key human resource. In addition, the display control unit 369 receives interface commands from the job controller, analyzes them, and displays them. The control data 367 is updated.

The display control data 367 has data for controlling the display of each screen, such as the screen number to be displayed and display variable information within the screen, and the dialog data 370 has the basic frame of each screen,
It is a hierarchically structured database having display data of each frame and reference addresses of variable data among the display data (addresses of display control data 367 storing display variable information).

The dialog start-up collection unit 366 determines the basic frame of the screen to be displayed based on the screen number to be displayed in the display control data 367;
The display data is read from the dialog data 370, and the display data is determined according to the display variable information of the display control data 367, and the screen is edited.
- Render and develop the display screen in the RAM 365.

In the job controller, the key management unit 14 refers to the state table 371 and checks whether the logical key is in a state where the machine can be accepted. On the condition that no key information is input, the key information is determined and sent to the key control section 375. Key control section 375
performs key reception processing, updates the copy mode 378, checks the mode, and issues a copy execution command,
Display control is performed by grasping the machine state and passing display control information to the display management section 377. Copy setting information for basic copy, advanced copy, and specialized copy is set in the copy mode 378. Display management section 377
issues an interface command to the video controller based on the processing result by the key management section 14 or the key control section 375, and starts an interface routine (display control section 369). Job controller 37
6, after operating the start key, receives machine operation information, issues commands for controlling the machine, and performs management for executing a copying operation for one original document. The command control unit 373 notifies the state management unit 372 and job control unit 376 of the status of the received command sent from the main body, and also receives commands for execution from the job control unit 376 during job execution. Send to.

Therefore, when the start key is operated and the key control unit 375 sets a command corresponding to the copy mode in the transmission buffer 380 to execute a copy operation, the commands indicating the operating status of the machine are sequentially received by the reception buffer 379. Ru.

By notifying the job control unit 376 of this command from the command control unit 373, the next copy execution command is issued each time copying is completed one by one until a predetermined number of copies have been completed and a command to stop the machine is issued. will be issued. During a copy operation, when a jam occurrence command is received, the state management section 372 recognizes the jam state through the command control section 373, updates the state table 371, and at the same time updates the state table 371 through the display management section 377 through the key control section 375.
issues jam screen control interface commands to the video controller.

(II-3) Paper conveyance system In FIG. 18, the upper tray 6-1 serves as a paper tray.
, middle tray 6-2, lower tray 6-3, and duplex tray 11 are installed in the base machine, and a large capacity tray (HCF) 17 is installed on the side as an option.
, a manual feed tray (MSl) 16, and each tray is equipped with a no paper sensor, a size sensor, a clutch, etc. as appropriate. Here, the no paper sensor is a sensor for detecting the presence or absence of copy paper in the supply tray, and the size sensor is a sensor for determining the size of the copy paper stored in the tray. Further, the clutch is a component for controlling on/off the drive of each paper feed roll. By making it possible to feed the same size copy paper into multiple supply trays in this way, when one supply tray runs out of copy paper, the same size copy paper can be automatically fed from the other supply trays. do.

The copy paper is fed by a specially provided feed motor, and a step motor is used as the feed motor. A feed sensor detects whether copy paper is being fed normally. A gate solenoid is used for registration to align the leading edge of the copy paper once it has been sent out.

This gate solenoid is different from ordinary solenoids of this type in that it controls the gate to open when energized and allow copy paper to pass through. Therefore, in a standby state where copy paper does not arrive, no power is supplied to the gate solenoid, and the gate remains open to reduce power consumption. Then, just before the copy paper arrives, the gate solenoid is energized and the gate closes to prevent it from passing through. Thereafter, when conveyance of the copy paper is resumed at a predetermined timing, the energization is stopped and the gate is opened. By performing such control, there will be less fluctuation in the gate position when the leading edge of the copy paper is blocked from passing, and even if the copy paper is pressed against the gate with a relatively strong force, its position will be maintained. Can be done accurately.

When copying is to be performed again using a duplex mode in which copies are made on both sides of a sheet of paper or a composite mode in which copies are made multiple times on the same side, the sheets are guided to a conveyance path where they are stacked onto a duplex tray 11. In the duplex mode, the sheets are directly stacked from the conveyance path to the duplex tray 11, but in the composite mode, they are first conveyed from the conveyance path to the inverter 10 for the composite mode, and then reversed and stacked on the duplex tray 11. 1
1 to 6 will guide you. Note that a gate 503 is provided at the branch point between the paper discharge outlet 502 from the conveyance path 501 to a sorter, etc. and the duplex tray II side, and a gate 503 is provided at the branch point leading to the composite mode inverter 10 on the duplex tray Iz side. is a gate 505 for switching the conveyance path
．． 506 is provided, and furthermore, the paper discharge outlet 502 is a game)
, 507 are provided, and by inverting the paper with the tri-roll inverter 9, the copied side can be ejected from the front side.

The upper tray and middle tray can hold approximately 500 sheets of paper.5
, A3-B5, Legal, Letter, Special B4, llX17
This tray can accommodate paper sizes of . And the first
As shown in FIG. 9, it has a tray motor 551, and is structured so that when the number of sheets is low, the tray 552 is turned around. As sensors, there are three paper size sensors 553 to 555 that detect the paper size, a no paper sensor 556 that detects paper out, and a surf ace control sensor 557 that is used to adjust the tray height. Additionally, there is an emergency switch 558 to prevent the tray from rising too high. The lower tray has 1 sheet of paper.
This tray can store approximately 100 sheets of paper of the same size as the upper and middle trays.

In FIG. 18, the duplex tray is a tray that can accommodate approximately 50 sheets of paper and the same paper size as each of the above trays, and it is possible to copy multiple times on one side of the paper or copy on two sides. This is a tray that temporarily stores copied sheets when copying is performed alternately. A feed roll 507 and a cage 505 are arranged on the entrance side conveyance path of the duplex tray 11, and this gate 50
5 controls the switching of paper conveyance according to the combination mode and duplex mode. For example, in the duplex mode, the paper conveyed from above is guided to the feed roll 509 side by the gate 505, and in the composite mode, the paper conveyed from above is guided to the gate 505 and 509.
is once led to the inverter 10 for the synthesis mode, and then reversed, the feed roll 51 is guided through the gate 506.
0, guided to the duplex tray Il side. In order to store paper in the duplex tray 11 and allow it to fall freely to a predetermined edge position, a tray inclination angle of approximately 17° to 20° is generally required. However, in the present invention, the device is made more compact and the duplex tray [1] is housed in a narrow space, so that the maximum inclination angle is only 8''. As shown in the figure, side guides 561 and end guides 562 are provided.In controlling these side guides and end guides, when a paper size is determined, the paper is stopped at a position corresponding to the paper size.

A high capacity tray (HCF) is a supply tray that can accommodate dozens of sheets of copy paper. For example, for customers who do not need to enlarge or reduce originals to make copies, or for customers who only make a small amount of copies, it is often appropriate to purchase a base machine alone.

On the other hand, customers who make a large number of copies or who require complex copying operations often require a duplex tray or a high-capacity tray. As a means to meet these various demands, this copier system has a structure that allows each additional device to be easily attached or removed, and some of the additional devices are equipped with independent CPUs (central processing units). and multiple C
It is decided that distributed control will be performed by PU. This not only has the advantage that the customer can easily obtain the desired product, but the possibility of installing new additional equipment also teaches the customer the possibility of new copying operations. This makes the purchase of this copier system very attractive as it advances the evolution of office processing.

The manual feed tray (MSI) 16 holds approximately 50 sheets of paper.
This is a tray that can accommodate paper sizes A2F to A6F, and in particular can use large-sized paper that cannot be accommodated in other trays. Since this type of conventional manual feed tray manually feeds sheets one by one, it is only necessary to preferentially feed copy sheets from the manual feed tray when manual feed is performed, and there is no need for the operator to select the manual feed tray itself. In contrast, the manual feed tray 16 of the present invention can set a plurality of copy sheets at the same time. Therefore, when you set the copy paper, you can
If you start feeding from the printer, there is a possibility that the feeding will start when multiple sheets of copy paper are set.

In order to prevent such a situation, the manual feed tray I6 is selected.

In the present invention, compactness is achieved by adopting a configuration in which the nuja roll 513, feed roll 512, and takeaway roll 511 are integrally attached to the tray. After the leading edge of the paper is nipped by the take-away roll 511, a feedout sensor detects the leading edge and pauses it, thereby performing pre-registration to align the transfer position and absorbing variations in paper feeding at the feeder unit. are doing. The fed paper is fed to the transfer position of the photosensitive material belt 4 via the aligner device 515.

(II-4) Automatic document feeder (DADF) In FIG. 21, the DADF 13 is installed on the platen glass 2 of the base machine 1. This DADF +
3 is equipped with a document tray 602 on which a document 601 is placed. A delivery paddle 603 is arranged on the original delivery side of the original tray 602, and the originals 601 are sent out one by one. 60 manuscripts sent out
1 is a first driving roller 605 and its driven roller 606
and a second driving roller 607 and its driven roller 608
is transported to an arcuate transport path 609.

Further, the arcuate conveyance path 609 is a manual feed conveyance path 610.
A third drive roller 612 and its follower VJ roller 613 are provided at the exit of the arcuate conveyance path 609. The third drive roller 612 is movable up and down by a solenoid (not shown), and is configured to be able to approach and separate from the driven roller 613. A stop gate 615 rotated by a drive motor (not shown) is provided on the horizontal conveyance path 611.
A reversing conveyance path 616 is connected from the horizontal conveyance path 611 to the arcuate conveyance path 609. A fourth drive roller 617 is provided in the reversing conveyance path 616. Further, a heald drive roller 619 is provided on the north side of the platen glass 2 facing the exit of the horizontal conveyance path 611, and a bell l stretched between the driven rollers 620.
-621 is capable of forward and reverse rotation. A fifth drive roller 622 is provided at the exit of this belt conveyance section, and
A sixth drive roller 623 is provided in the manual feed conveyance path 610.
is installed. Two driving rollers 623 are provided in the front and rear directions of the Heas machine 1 (in the direction perpendicular to the plane of the paper in the figure).
It is configured to be able to send two originals of the same size at the same time. Note that 625 is a cleaning tape for cleaning the surface of the delivery paddle ¥03 by the seventh drive roller 626.

Next, the photosensors S to S1□ will be explained with reference to FIG. 22. S is the document 60 on the document tray 602.
S2 is a take-away sensor that detects the passage of a document, S is a feed sensor provided before and after the manual feeding path 610, and S is a takeaway sensor that detects the presence or absence of a document by a skew roller 627. Registration sensors 36 to 5l (1 is a paper size sensor that detects the size of the original; S detects whether the original has been ejected) The discharge sensor S+Z is an end sensor that detects the end of the cleaning tape 625.

Next, with reference to FIG. 23, a DAD with the above configuration is
The action of F13 will be explained. (A) is a platen mode, in which the original 601 is placed on the platen 2 and exposed.

(b) is the simplex mode, and the document tray 60
2, the originals 601 are stacked with the first side to be copied facing upward. When the start button is pressed, first the first drive roller 605 and the second drive roller 6
07 rotates, but the third driving roller 612 moves upward and separates from the driven roller 613, and the stop gate 6
15 descends and blocks the horizontal conveyance path 611. As a result, the original 601 passes through the arcuate conveyance path 609 and reaches the stop gate l.
-615 is pressed (■~■). At the position of the stop gate 615, the original is corrected by the skinny roller 627 so that its edge is perpendicular to the horizontal conveyance path 611, and the original size is detected by sensors S6 to S1°. Next, the third driving roller 612 moves downward and comes into contact with the driven roller 613, and the stop gate 615
rises to open the horizontal conveyance path 611, and the third drive roller 612, belt drive roller 619, and fifth drive roller 622 rotate, and the document is placed at a predetermined position on the platen 2 with the side to be copied facing down. After being exposed to light, it is discharged. Note that the same effect occurs when sending a single document from the manual feeding path 610, and in addition to the function of feeding documents one by one, the function of feeding two documents of the same size at the same time (2-
UP), large document feed function (LDC), computer form feeder (for feeding continuous paper for computers)
CCF) function.

(C) is the duplex mode, and the process of exposing one side of the document is the same as the steps ① to ② of (B) above, but when the single-side exposure is completed, the bell Ill < moving roller 619
is reversed, the third driving roller 612 moves upward and separates from the driven roller 613, and the stop gate 61
5 descends and blocks the horizontal conveyance path 611. Therefore, the document is conveyed to the reversing conveyance path 616, and then passed through the arcuate conveyance path 609 by the fourth drive roller 617 and the second drive roller 607, and is pressed against the stop gate 615 (■ to ■). The third drive roller 612 then moves downwards into contact with the driven roller 613 and the stop gate 615 rises to open the horizontal transport path 6.11.
The third drive roller 612, the belt drive roller 619, and the fifth drive roller 622 rotate, and the document is sent to a predetermined position on the platen 2 with its back side facing down, and exposed. When the exposure on both sides is completed, the belt driving roller 619 is reversed again, and the sheet is again conveyed to the reversing conveyance path 616, and in the same manner, it passes over the platen 2 and is discharged by the fifth driving roller 622. ). Therefore, the ejected original is
The documents are stacked in the order in which they were first stacked on the document tray 602, with the first side to be copied facing downward.

(U-5) Sorter In FIG. 24, the sorter 19 has a sorter body 652 and 20 bins 653 on a movable cart 651. Inside the sorter body 652, a belt drive roller 656 that drives the conveyor belt 655 and its driven roller 657 are provided, as well as a chain drive sprocket 660 that drives the chain 659 and its driven sprocket 661. These belt drive rollers 65
6 and chain drive sprocket 660 are driven by one sorter motor 658. Conveyor belt 655
A paper inlet 662, a paper outlet 663, and a switching gate 665 driven by a solenoid (not shown) are provided at the upper part of the paper. Further, an indexer 666 is attached to the chain 659 for switching and supplying copy paper to each bin. As shown in FIG. 25, the rotation of the drive shaft 671 of the sorter motor 658 is transmitted to a pulley 673 via a timing belt 672. The rotation of the pulley 673 is transmitted to the belt drive roller 656 and to the chain drive sprocket 7) 660 via the gearing 6'74.

Next, the operation will be explained with reference to FIG. 26. (A) shows the non-sort mode, and the switching gate 665 is in the non-sort position and sends the copy paper to the uppermost discharge tray. (B) indicates the sort mode, and the switching gate 6
65 is switched to the sorting position, the odd-numbered sheets are conveyed from the top to the bottom bin to the odd-numbered bins, and the even-numbered sheets are conveyed from the bottom to the top bin and conveyed to the even-numbered bins. transported to. This reduces sorting time.

(c) and (d) show the stack mode, (c) shows an example of four copies of four originals per original, and (d)
This is a case where the maximum number of sheets stored per bin is exceeded. For example, when the number of sheets exceeds 50, the sheets are stored in the next bin.

The belt area consists of an imaging system and a marking system.

The imaging system is managed by the 1MM subsystem 34, which writes and erases latent images.

The marking system is managed by a marking subsystem 35, which performs charging, exposure, surface potential detection, development, transfer, etc. In the present invention, as described below, the 1MM subsystem 34 performs panel management on the belt, patch formation, etc. in order to achieve high speed copying and high image quality.
and marking subsystem 35 cooperate with each other.

FIG. 27 is a diagram showing an outline of the belt.

An organic sensitive material belt 4 is arranged within the base machine 1. Since organic photosensitive material belts are coated with multiple layers such as a charge generation layer and a transfer layer to form a photosensitive material, they have a greater degree of freedom in manufacturing than photoreceptor drums, which form a photosensitive material by vapor depositing Se. It is easy to do this, so costs can be reduced.
Also, since the space around the belt can be increased, the layout can be easily done.

On the other hand, belts expand and contract, and the diameter of rolls also changes due to temperature differences, so a belt hole is provided at a certain distance from the belt seam to detect this, and pulses are generated according to the rotational speed of the main motor. is generated by an encoder to form a machine clock, and by constantly counting the -period machine clock, a pitch signal that becomes a reference for starting the carriage according to the expansion and contraction of the belt,
Correct the registration timing.

The organic photosensitive material belt 4 in this device has a length of 1 m or more, and is designed to hold 4 A4 size sheets and 3 A3 size sheets, but since the belt has seams, it is always necessary to use a panel (image formed on the belt). Formation area) If you do not manage it, you will not be able to make a copy of the specified panel. Therefore, the position of the panel is determined based on the belt hole provided at a certain distance from the seam, the number of panels to be placed on the belt (number of beaches) is determined according to the copy mode and paper size specified by the user, and then the start is started again. When the panel for making a copy by pressing the button comes to the getbark position near the roll 201, it issues a signal, indicating that a copy can be made from here.

The organic sensitive material belt 4 is a charge corotron (charger) 21
1, and is uniformly charged and driven clockwise in the figure at a constant speed. Then, when the first panel arrives a certain time before the register (exposure location) 231, a pitch signal is output, and the timing of carriage scan and paper feed is determined based on this signal. The belt surface charged by the charge corotron 211 is exposed at an exposed location 231
exposed to light. A light image of a document placed on a platen glass 2 placed on the top surface of the base machine 1 is incident on the exposure portion 231 . For this purpose, the exposure lamp 1
02, a plurality of mirrors 101 to 113 and an optical lens 10 that transmit reflected light from the illuminated document surface.
8 are arranged, among which mirror 101 is scanned to read the original. Also mirror 110.
111.113 constitutes the second scanning optical system, which is P
I S (Precession I images)
Since there is a limit to increasing the process speed, the second scanning optical system scans in the opposite direction to the belt movement direction so that the copy speed can be increased without increasing the process speed. The relative speed is increased to achieve a maximum of 64 sheets/min (CPM).

An electrostatic latent image corresponding to the original is formed on the organic sensitive material belt 4 by the image information exposed in a slit shape at the exposure location 231 . And IEL (Interimage Lamp)
After unnecessary images, inter-image erasing, and side erasing are performed in step 215, the electrostatic latent image is removed by a developing device 221, which normally uses black toner.
6 or developed by a color toner developing device 217 to create a toner image. The toner image moves with the rotation of the organic sensitive material belt 4, and the toner image moves as the organic sensitive material belt 4 rotates.
7 (Transcription H) 21 B,) Transphacorotron 2
It passes through the vicinity of 20. Britransphacorotron 2
Reference numeral 18 is usually used to weaken the electrical adhesion of the toner by applying an alternating current to facilitate the movement of the toner. In addition, since the belt is made of a transparent material, before transfer, a transfer lamp 225 (also used for erasing) irradiates the belt with light from the back to further weaken the electrical adhesion of the toner, and transfer is performed. make it easier

On the other hand, the copy paper stored in the supply tray of the base machine 1 or the copy paper fed manually along the manual feed tray 16 is sent out by the feed roll, guided to the conveyance path 501, and connected to the organic photosensitive material belt 4. It passes between the transfer corotrons 220. In principle, paper is fed using LE F (Long Edge Feed).
), the registration gate is controlled to open and close so that the leading edge of the paper and the exposure start position meet at the picking point, and the toner image is transferred onto the copy paper. And Detasoku Corotron 221. Stringbuffinca 222
The paper and the photosensitive belt 4 are separated from each other, and the copy paper after transfer is transferred to a heat roll 232 and a pressure roll 233.
The conveyor rolls 234 and 235
and is discharged onto a discharge tray (not shown).

The sensitive material heald 4 from which the copy paper has been peeled off is made easier to clean by a pre-clean corotron 224, unnecessary charges are erased by light irradiation from the back side by a lamp 225, and unnecessary toner, dust, etc. are scraped off by a blade 226. It will be done.

Note that a punch generator 212 forms batches between images on the belt 4, and the electrostatic potential of the punch portion is detected by an ESV sensor 214 for density adjustment. Further, as described above, the belt 4 has holes, which are detected by the belt hole sensor 213 to detect the belt speed and control the process speed. Also A
DC (Auto Density Control)
The sensor 219 detects the amount of toner adhesion by comparing the amount of reflected light from the toner on the batch area with the amount of reflected light when there is no toner, and the pop sensor 223 detects whether the paper is wrapped around the heald without being peeled off. The case is detected.

FIG. 28 shows how the photosensitive material belt 4 is divided into panels.

Heald 4 has a seam 251, so the image is not placed there, and it is kept at a certain distance from the seam. A belt hole 252 is provided at a position iIl, and has a circumference of 11, for example.
In the case of 58m, 2 is 70 countries. 253.2 in the diagram
54 are the first and last panels when the photosensitive material belt surface is divided into N pitches, B in the figure is the panel interval, C is the panel length,
D is the pinch length of the panel, which is 289°5n+n+ for 4-pitch division and 386IM for 3-pitch division.
In the case of m, 2-pinch division, it is 579 ko. Seam 25
1 is the L E (Lead Edge) of the panel 253.
) and TE (Tail Edge) of panel 254
Set A=B/2 so that it is in the center of .

Note that the LE of the panel needs to match the paper OLE, but the TE does not necessarily match, but matches the maximum paper TE for panel application.

Next, the functions of the IMM (imaging module) will be explained.

FIG. 29 is a block diagram schematically showing the functions of the 1MM subsystem.

To outline the functions of the 1MM subsystem 34, it performs serial communication with the IEL subsystem 40 via a pass line, sends an interrupt signal via a hotline for highly accurate control, and manages image formation. 35, sends a control signal to the CHM subsystem 33 to control the belt.

It also detects holes in the organic photosensitive material belt 4 to control the main motor, and also determines the panel forming position and performs panel management. In the case of a low temperature environment, the space axis of the user is moved to maintain the fixing roll at a predetermined temperature, so that rapid copying can be performed. and,
When the start key is pressed, it enters the set amplifier state, and before copying, constants such as V DDP are adjusted, and when the copy cycle begins, edges are erased at the leading and trailing edges of the image based on the original size. Form an image area. A patch is also formed in the inter-image area to form a patch for toner density adjustment. Furthermore, if a hard down factor such as a jam or a held fail is detected, the belt is stopped or the machine is stopped by communicating with the sequence manager.

Next, the human output signal and operation of the 1MM subsystem will be explained.

Plaque toner bottle 2611 color toner bottle 26
The toner detection signal in step 2 is manually input to detect the remaining amount of toner.

An optical registration signal is input from the optical registration sensor 155, which serves as a reference for the PC request signal, bias request signal, and ADC request signal sent from the 1MM subsystem to the marking subsystem.

The document size is input from the platen document size sensors S, -SIO, and the area to be erased by the position 215 is determined from this and the paper size.

A belt hole signal is manually input from the belt hole sensor 213, and the main motors 264 and 265 control the process speed to correct for variations in the time it takes for the belt to make one revolution.

Two main motors are provided to enable operation at an efficient operating point, to enable efficient output of motor power depending on the load condition, to use electric power effectively, and to improve stopping position accuracy. The motor performs regenerative braking. The motor can also be driven in reverse. This is to remove paper powder and toner scum that accumulates on the front side of the blade when cleaning is performed with the blade in close contact with the photosensitive material belt. In addition, belt drive by the motor is performed via a belt clutch 267.
Only the belt can be stopped selectively. Pulses are generated from the encoder in synchronization with the rotation of this motor, and are used as machine clocks to obtain machine clocks that correspond to the belt speed.

Note that if the belt hole sensor 213 cannot detect a hole for a certain period of time or the size of the hole has changed, this information is transmitted from the rMM to the sequence manager and the machine is stopped.

In addition, the 1MM subsystem is IEL, subsystem 4
In addition to serial communication with 0, it also sends interrupt signals through the hotline, IEL enable signal,
It sends out an EL image signal, an ADC patch signal, and a black band signal. The IEL image signal is used to erase unnecessary images, and the ADC patch signal is used by the IEL subsystem 40 to define the shape and area of the batch area formed by the batch generator 212, and adjust the amount of charge to eliminate electrostatic charge. Adjust the potential to a constant potential of 500 to 600 μm. In order to prevent the belt 4 from being damaged by the blade 226, the black band signal is generated by forming a black band between images at predetermined intervals to adhere toner and act as a kind of lubricant, so that the belt 4 is not damaged. This prevents the belt 4 from being damaged even when copying is performed when toner I is extremely low, such as in a situation where the amount of toner I is extremely low.

Furthermore, the IMM communicates with the marking subsystem 35 via a hotline, and uses the optical register signal as a reference to generate batch formation request signals, bias request signals,
Sends an ADC request signal.

In response, the marking subsystem 35 drives the batch generator 212 to form a batch, and also
The SV sensor 214 is driven to detect the electrostatic potential, and the developing devices fi 216 and 217 are driven to form a toner image. Also, britransfer corotron 21B, 1-transphacorotron 220, pork corotron 221
The drive control is performed.

A pitch reset signal ■ is sent from the IMM,
The carriage start timing is determined based on this.

Further, a detection signal indicating whether or not a color developing unit is installed is input, and it is detected whether the toner in the developing unit is black or color.

The rMM sends a registration gate trigger signal to the CHM subsystem 33 to control the paper so that the leading edge of the image coincides with the paper at the picking point, and if it is necessary to correct the opening timing of the registration gate, it controls the amount of correction. is calculated and sent.

Further, the toner scraped off by the blade 226 is collected in a collected toner bottle 268, and a detection signal of the amount of toner in the bottle is manually input to the IMM, so that an alarm is issued when a predetermined amount is exceeded.

In addition, the rMM drives the fan motor 263 to prevent abnormal temperature rise, so that the environmental temperature is within the permissible temperature range and copies with stable image quality can be obtained.

111-2- Iminoji FIG. 30 shows a timing chart.

The reference time for the III control is the optical registration sensor position. The IEL is turned off after a predetermined time (T1) of the optical registration sensor on/off signal.

In other words, it is on until TI and the tip is erased,
After T2, it is turned on to erase the rear end. In this way, image formation is performed using the rEL image signal, and by controlling the registration gate timing, the leading edge of the sheet at the picking point and the leading edge of the image are aligned. After the image formation is completed, the punch generator request signal (T from the reference time)
5) generates an ADC patch signal and forms a batch in the inter-image. After batch formation, a bias request signal is issued (after T6) to perform development, and then an ADC request signal is issued (after T7) to detect toner density. Further, a black band is formed in the inter-image by the black band signal.

Note that during A E (Auto Exposure) scanning, ON10F of the IEL image signal
F is not performed.

2-3n FIG. 31 is a diagram showing the connection between the main CPU and the device.

rELcP[J47 controls an IEL 215 consisting of 189 light emitting diodes of 2, 4+w+ angle arranged perpendicular to the belt movement direction to perform image formation, patch formation, potential control, etc. Serial communication is carried out between the IELCPU47 and the main CPU41, but the main CPU
The 1MM34 installed in the main CPU is in charge of this on the PU side, and the 1MM34 is a module installed in the main CPU together with the sequence manager 32, and it exchanges information with the sequence manager 32 through software communication. We are having an exchange. In FIG. 31, this module is illustrated as if it were a circuit. In serial communication with the IEL subsystem 40, an rEL enable signal, an IEL image signal, an SDC patch signal, and a black band signal are sent through the hotline by interrupt processing.

Fig. 32 is a diagram showing the relationship between the marking CPU and the main CPU connected by serial communication, Fig. 33 is a diagram showing the connection configuration with each element of the marking CPU, and Fig. 34 is a diagram showing the marking system software configuration. FIG.

(A) Hardware configuration The main CPU 41 has a ROM 32 as shown in FIG.
3. NvRAM (non-volatile memory [-1J) 324, interface 32 for exchanging data with the base machine
1. It has an interface 322 for exchanging data with an additional device (OPTION), the bus is connected to a communication control circuit 327 via a bus arbiter 326, and the ULT
It is configured to communicate with the CPU 46 and other CPUs. The ROM 323 stores programs including subsystems such as the sequence manager, imaging module, and copy handling module described above. The bus arbiter 326 has a system RAM 325, holds data sent from the main CPU 41 to other CPUs, and data received from other CPUs, and enables the main CPU 41 to send and receive data asynchronously with the timing of serial communication. The ROM 328 stores a communication program that causes the communication control circuit 327 to transmit and receive data over a serial communication line. Note that the main CPU 41 may be configured to perform all functions related to the bus arbiter 326 and the communication control circuit 327 related to communication. The sequence manager subsystem in the main CPU 41 monitors the status of each subsystem through serial communication, and upon receiving a copy mode signal from the user interface, sends a sequence manager to each subsystem so that copying can be performed efficiently at a predetermined timing. Give work instructions.

The marking CPU 42 is mounted on the main board together with the main CPU 4i, as shown in FIG. In the figure, 1MM34 is in charge of controlling the position, controlling the main motor through the servo system, and controlling the cleaner 760.

The marking CPU 42 includes an exposure lamp power source 703 and a charge corotron power source (CCHVP) that charges the sensitive material.
S) 702, Pre-transfer corotron power supply (PTCHVP) to facilitate developed tonano transfer.
S) 904, transfer corotron power supply (TCHVPS) 905 for transferring the developed toner, transfer corotron power supply (DTCHVPS) 906 for discharging paper to peel paper from the photosensitive material, and toner cloud entering the machine. A catch-up bias power supply to prevent this, a developing bias power supply 712 and 713, and a pre-clean corotron Kawagiri i! for cleaning the sensitive material. I
(PCCHVPS) 907 is controlled. Further, the black and color developing fi 715, 716 drive mag rolls using the power of the main motor, and this driving is performed via clutches 715, 716 controlled by the marking CPU 42. In addition, the black and color developing machines 715 and 716 are selectively switched and used, and when one approaches the heald, the other leaves the belt, and when it approaches the belt, it is set in a predetermined position. A sensor managed by the marking CPU detects whether or not the mark has been marked. Further, the marking CPU 42 controls the drive of the cork lamp by using a 5SR (solid state relay) via a relay board 902, and monitors the temperature by detecting the user temperature with a sensor. Note that the user's thermostat operates offline and is not controlled by markings. In addition, the marking CPU 42 is FLPS703
The exposure amount is controlled by controlling the driving current of the lamp 102 through the relay board 902, and the exposure lamp heater is also driven and controlled. It controls the lamp.

(B) Software configuration FIG. 34 is a diagram showing the software configuration of the marking CPU.

The marking system consists of a system initial setting section 921, a sequence control section 922, and an interface data handler 923.
performs only ROM and RAM checks and NVM checks. The sequence control unit 922 is a state control unit 924
and a state analysis unit 925, which analyzes which state the computer is in and whether all jobs in that state have been completed, and based on the results, a state control unit 924 determines which state to move to next. is under control. The interface data handler 923 consists of an input signal monitoring section 926, an input data analysis section 927, an input data handler 928, and an output data handler 929. The input signal monitoring section 926 monitors communication from the main system to the marking system. ,
When a communication interrupt occurs and is detected, the reception buffer is read, and the input data handler 928 takes in the data. The input data is analyzed by an input data analysis unit 927 to determine what the input data means and what needs to be done. The output data handler 929 then transmits the data to be transmitted to the main system through the transmission buffer.

Part 35 is a diagram showing the state transition of the marking system.

The power-on L7 state is the power-on initialization state, in which various data and flags are initialized according to the contents written to NVM, and a timer processing table for setting Ilo input/output time is registered. With,
It is determined whether the normal copy mode or the diagnostic mode is selected.

Diagnosis mode is a mode provided for service personnel to perform machine adjustments, etc., and is a mode for checking failure history, etc., and performing various set amplifiers. When the diagnosis mode is selected), the mode moves to diagnosis standby (
■). Diagnostic standby is a state in which a code number such as P3, P5, PIO, etc. is selected and the start key is pressed.

When the start key is pressed, the system enters the diagram state ([phase]), reads the code number, executes P5, PIO, etc., and performs various adjustments. When finished, it returns to the diagnostic standby state (■). Returning from diagnostic mode to normal mode is performed by powering off/on.

When the normal mode is selected and the initial settings are completed (■),
Go to standby in normal mode.

The standby state is the state until the start key is pressed, and there are (a) standby NOT READY state and (b) standby READY state. Standby NOT READY is the state in which the user is kept at a constant temperature in preparation for the fusing function. temperature distribution and make the temperature distribution uniform. When this operation is completed, the standby READY
, and when the start key is pressed, it shifts to the idle state (■). In addition, standby NOT READY
Even in this state, the start key will be pressed and the machine will start automatically when the user reaches a certain temperature.

Standby NOT READY status and standby R
The purpose of dividing the state into EADY is to facilitate user control.

Idle is a period of 100 m5ec after the start key is pressed, and is a state for performing processes that need to be executed simultaneously with belt rotation, such as applying bias to the developing machine and applying voltage to the erase/print transfer lamp. , is waiting for a copy start command from the main system, and when it receives a belt start stop command from the main system, the standby REA
Return to DY (■), and transition to the setup state by a setup request command from the main system (■). Also, when it receives a purge request command from the main system, it shifts to the purge state.

The purpose of this idle state is to simplify the entry and exit of each start and facilitate state control.

The setup state is to clean the TALC on the photosensitive material, adjust the current value of each corotron to the target value,
Adjust the VDDP to the target value, adjust the exposure amount, etc. When these processes are completed, it returns to the idle state (■) and shifts to the copy cycle (■).

The cycle status repeats charging, exposure, development, transfer, fixing, and cleaning until all request commands are received. Then, the marking system has finished shutting down, and BrAS, erase/transfer,
Stop the output other than the lamp, send a standby command to the main system, and enter the idle state.■)
Return to standby (■).

Purge is a state that enters when a jam occurs, and when the cause of the jam is removed, other sheets that have already been fed are automatically ejected. P/R (Photo-
(2) When a copy mode command is received in the idle state, the machine shifts to the cycle state (2).

When an emergency jam occurs during a machine run or an emergency stop factor such as the front interlock is opened, the emergency state changes from any state and post-processing is required, so marking is controlled. Perform processing such as turning off all outputs that are currently on. Then, when the emergency stop process is completed, the system shifts to standby (Q).

Fail is a state in which all outputs are turned OFF when a fail condition occurs, such as overheating of a windshield or disconnection of a thermistor, regardless of whether the machine is running or on standby.

Figure 36 of 111-4 Bell is a diagram showing a schematic configuration of the control of the charge corotron.

The potential of the organic photosensitive material belt 4 varies depending on factors such as fatigue of the photoreceptor, environmental conditions such as humidity and temperature, dirt and deterioration of the charge corotron, and the type of photosensitive material. (Dark Development P
It is necessary to maintain the target value.

Therefore, ■ After turning on the power, a cent-up cycle is performed only at the first start, and during this cycle, the dark potential (VDDP) of the photosensitive material belt is adjusted to the target value. (2) During control, VDDP is maintained at a target value by sampling the VDDP patch area in the interimage that holds VDDP on the belt every cycle. - VDDP is reduced and corrected at the next start according to the OFF time (9 stages) of the charge corotron. ■VDD at three different timings: at set-up, at the end of set amplifier, and during copying.
P is checked, and if it is outside the permissible range, a transition is made to open loop mode.

In order to perform the above correction, the potential signal of the surface of the sensitive material detected by the ESV sensor 214 is input to the marking CPU 42 disposed on the main board.

The marking CPU 42 outputs a control signal so that the surface potential becomes the reference potential, and the D/A converter 701 converts it into an analog control signal to control the high voltage power supply 702. As a result, from the high voltage electric m7o2, the charge corotron 21
A predetermined grid voltage is applied to the belt 1 to charge the belt. Then, the ESV sensor samples the electrical charge again, and the CPU 87 similarly outputs a control signal. By repeating this, the potential on the belt is adjusted to a predetermined potential, and the remote value at this time is held.

Note that the reference potential is, for example, 800V and is held as ROM data. Then, during a copy cycle, a VDDP batch area is formed in a predetermined interimage, and potential detection is performed once during each copy cycle to control VDDP to be maintained at a target value. Furthermore, although the charging characteristics of the photosensitive material belt are restored by turning off the charge corotron, VDDP is corrected to decrease in accordance with the OFF time.

In addition, VDDP is checked at three different timings: 11 times during set-up, at the end of set-up, and during copying, and if it is outside the allowable range, control is performed using the target charge corotron during set-up in open loop mode. One.

Figure 37 shows the configuration for controlling the illumination of the optical system by the marking CPU.

Although fluctuations in light amount occur due to factors such as fluctuations in light amount due to dirt in the optical system, changes in required light amount due to magnification selection, changes in required light amount due to density selection, and changes in light amount due to changes in lamp tube wall temperature, good copying is possible. In order to do so, it is necessary to correct for such fluctuations.

The illumination control in this apparatus is performed by two methods: control of the tube wall temperature of the exposure lamp and adjustment of the exposure amount.

The light from the lamp 102 directly connects the lens 108 and the mirror 11.
The sensitive material belt 4 is exposed to light through the 0.111113, and the resulting electrostatic potential is detected by the ESV sensor 214 and used as an exposure amount detection signal.The tube wall temperature is detected by the lamp thermistor 706 and used as a tube wall detection signal. Marking C each
It is input to PU42. Interface signals such as the M/C clock, belt hole sensor, scan end signal, magnification setting, density setting, etc. are also input. Upon receiving these inputs, the marking CPU 42 turns on the lamp power supply 70.
In addition to controlling the supply current and controlling the supply current, the lamp heater 705 is also controlled, and the cooling fan 263 is controlled to perform cooling, light amount control, and temperature control.

II[-4-CONTROL FIG. 38 is a diagram illustrating the control of the developing machine by the marking CPU.

Detection signals of black toner and color toner from the developing machines 216 and 217 are inputted to the marking CPU 42 from sensors 718 and 719. And D/A converter 7
The developer bias power supplies 712 and 713 are controlled by signals from 11 to control the voltages applied to the tuna lures 21a and 721b and the voltage applied to the tuna lure 22a to adjust the amount of toner development, and also adjust the catch-up bias voltage. 0N
10FF and controls the voltage applied from the developer bias voltage i714 to the catch-up roll to prevent the carrier from adhering to the sensitive material.

In addition, in order to put the toner on the belt,
．． 716 ON10F
7 are controlled.

111-4-4 FIG. 39 is a diagram showing a schematic configuration of the developing machine.

As shown in FIG. 39(A), the copying machine of the present invention has a first developing machine for black toner and a second developing machine for color toner. - Lua 21a, 722a, 721b, 722b
It is equipped with The first developing machine and the second developing machine are rotatable around pivots 738 and 739 by cams 735 and 736, respectively, and when one is in contact with the belt, the other is separated. In addition, each developing machine is provided with catch-up rolls 723a and 723b, which are used to prevent toner from spreading into the machine in the form of a cloud, contaminating the inside of the machine, and reducing the amount of light in the punch area. The object is charged with electricity so that it attracts it.

As shown in FIG. 39(B), toner is distributed by a toner box 744 through an agitator 745 and a dispense auger 746, and introduced into an in-auger 731 through a vibrator 747 and distributed. These drives are performed by a dispenser smoke 743. This toner is conveyed to the mag roll side by paddles 733 and 734, and conveyed to the belt surface by the mag roll.

The amount of toner supplied at this time is the trimmer 739a, 739b.
Also, the scrapers 740a, 740
At b, the adhering toner on the surface of the mag roll is scraped off.

111-4-5 Corotron's control Fig. 40 shows Corotron's electric 2it by marking CPU.
This is to explain value control.

The marking CPU 42 includes a britransfer corotron 218 for weakening the electrical adhesion of the toner attached to the photosensitive material belt to facilitate transfer, and a britransfer corotron 218 for transferring the toner attached to the photosensitive material belt onto paper for transfer. The status of the transfer corotron 220 and the transfer corotron 221 for weakening the electrical attraction force between the paper and photosensitive material belt in order to separate them are monitored, and the voltage applied to each is controlled by ON10FF. Similarly, an erase/pre-transfer lamp 225 is provided to control the supplied current and eliminate unnecessary charges, and to irradiate light from the back of the belt to facilitate transfer, and a pre-clean roller to facilitate cleaning. Tron 2
The current supplied to 24 is controlled.

111-4-6 Control Figure 41 is AE (Automatic Exposure)
This is to give an overview of the

The AE mode is executed when the AE mode is selected on the U/T, and at every start print in the platen mode.
In DADFSSADFSLDC, CCF, RDH, bypass mode, it is executed every start print and document exchange. However, the original must be stopped at a predetermined position. Note that AE has a mode in which AE bliscanning for document density measurement is performed and a mode in which it is not performed.

When the exposure lamp 102 scans the document, the remaining sensitive material belt 4
A latent image potential corresponding to the original is formed thereon. This is ES
Read with V sensor 214 and ESV at specified timing
The output of the sensor is taken into the marking CPU from the A/D converter 751 a specified number of times. The document density is determined from the minimum value in the captured data, and the development bias, light intensity, etc. are controlled.

Figure 42 of +11-4-7- is for explaining the outline of the cleaner.

Cleaning blade 761 in cleaner 760
is provided within the cleaner housing 768 and is driven by a self-retaining glue tract solenoid 765 and configured to contact and disengage the belt 4. The toner scraped off by the cleaning blade 761 is
A film seal 762 prevents it from falling downward, allowing it to be collected within the cleaner housing 76 and transported by an auger 764. Note that 769 is a guide rail, and 770 is a pre-clean charge corotron.

lff-4-8ADC FIG. 43 shows a schematic configuration of the ADC.

The ADC detects the amount of toner adhering to the ADC patch and compares it with a reference value to determine whether the toner concentration in the developing device is excessive or insufficient.The ADC determines whether the toner concentration in the developing device is excessive or insufficient, and the toner supply inside the developing device housing is determined based on the paper size and the amount of toner adhering at the time of detection. By controlling the amount, the reproducibility of high-concentration solid areas is improved and its maintainability is guaranteed.

When performing ADC, when scanning back the optical system, block the light with the lens shutter 707 to prevent the punch area from being erased, and use the patch generator to adjust the potential to a predetermined potential of 4 degrees. ESV sensor 2
Measure at +4. VADCve+As depending on the measurement results
= Control VIIIAS so that VCONT is constant. In this case, unnecessary charges other than the patch part are I
Static electricity is removed by EL214. When the patch portion passes through the developer, a toner image is formed on the sensitive material belt, so it is detected by an ADC sensor and amplified by an ADC amplifier to convert the light reflected output into a voltage value, which is used for marking. C.P.
Take it into U42. On the other hand, measure the output on the clean surface of the belt in advance. Thus, V FII
Determine whether TCM÷VCLEAN FF Controls the FF time.

The organic photosensitive material belt in this device has a length of 1158++o++, and is designed to hold 4 A4 size sheets and 3 A3 size sheets, but the photosensitive material has a seam, and the seam part is different from other parts. Due to the different photosensitive characteristics, it is necessary to divide the copy frame to prevent seam development. The number of divisions varies depending on the paper size and magnification, and below, division of the copy frame in the cases of 4 pitches, 3 pitches, 2 pitches, and 1 pitches will be explained with reference to FIG.

FIG. 44 is a diagram showing division of a copy frame in the present invention.

In the present invention, 4 pitches, 3 pitches, 2 pitches, ■
The copy frame is divided into pitches, and the copy frames are sequentially numbered #1, N2, . . . counting from the seam. Then, position the copy frames for 4-pitch and 3-pitch so that the seam is in the center of the inter-image, and the copy frames are arranged at equal intervals.
In case of pitch, #I of 4 pitches, N3 copy frame glue one edge, in case of 1 pitch, N of 4 pitches
2 Aligned with the lead edge of the copy frame. Furthermore, a patch area for ADC or VDDP is formed in the interimage. In this example, held 1
The circumference is 1158 am, and in 4.3.2.1 pitch division, the distance from the IJ-)' edge to the lead edge of the copy frame is 289.5 mm.

, 386mm, 579mm, 1158th tone, copy frame width is 216-1297am, 297nm+, 6, respectively.
It is 70a+m. Note that such pitch division is determined by the paper size and magnification in the main system.
It is now possible to convey this to M.

Exposure to form a latent image is performed at the OPT REG1 position, but in this example, the PIS (Precession
Since it uses an optical system called Twage5can, the exposure position is not fixed but moves. Therefore, the ○PTREG1 position (exposure start position) on the photosensitive material is the exposure point when the carriage comes directly below the REGI position on the platen. Then, at the start of latent image formation, the leading edge of the copy frame that forms the latent image is OPT.
It needs to be at the REG1 position, and the tip of the copy frame on which the latent image has been formed needs to match the paper at the picking point. Therefore, CHM paper feed, OPT
1 of the scan start! In order to be ready in time, the pitch reset is issued a predetermined time before the carriage actuator depresses the REGI sensor. In this case, LDC
In this case, instead of forming a latent image by scanning, the original is moved on the exposed carriage, so the time required to move the original to form the latent image is longer than in the case of scanning. The pitch reset is issued early, and at LDC 200%, it is further accelerated by one copy frame.

FIG. 45 is a diagram showing the relationship between the belt hole sensor, the lead edge of each copy frame, and timing, and FIG. 46 is a diagram for explaining the formula for calculating pitch resent occurrence timing.

In Figure 45, from the belt hole sensor to the OPT
REC; Distance to 1 position C (exposure start position for latent image formation) is B (=152.8 mm), OPT
The distance from the REGI position to the pitch reset occurrence position is A (=78.8-), the distance from the seam to the belt hole is D (=70m11), and the distance from the seam to the lead edge of #1 copy frame is E (4). 36.75 mm for pitch division, 44.5 for 3 pitch division
mm), process speed 308, 9 mm/s
ec, the time required from the belt hole sensor to each copy frame is TI, T2, T3, T4, and the time required from the pitch reset occurrence position to the lead edge of each copy frame is Xl, X2, X3, x4.

As shown in FIG. 46, in the case of (A) 4-pitch division, it is 308.9. Also, subtracting the time a = 750 msec from the belt hole to the pitch position to find the time from the pitch position to the tip of each copy frame, we get X 1 = T
l −a = 80 msecX 2 = 72− a
=1017msecX3=73-a=195
4msecX4=74-a=2891msec
c.

The value of the distance A from the OPT REG1 position to the pitch reset occurrence position was set to 78.8 m+ because the pitch reset signal is the reference signal for the carriage scan start, and the timing of this scan start may vary considerably due to changes in magnification, etc. range, e.g. 70-180 m5
Because the ec level varies, even if there is this variation, check the sensor, check the motor, check the position of the second optical system, etc. 4! of the carriage start! The purpose is to issue a pitch reset 255 m5ec before the RE on the photosensitive material corresponding to the carriage scan start (1 position) so that preparations can be made in time, and this is converted into a distance of 18.8 mm. By managing the time from this position to the copy frame, the carriage can be prepared to start scanning in any case.

(B) In the case of 3 pitch division, it becomes 308.9. Also, subtracting the time a-75 seconds from the belt hole to the pitch position and finding the time from the pitch position to the tip of each copy frame, we get X 1-T I
-a = 417 msecX 2 = 72- a = 1
667msecX3=73-a=2917m
sec.

The above is a theoretical timing value for the pitch position of the leading edge of each copy frame, but in reality, the IM/C clock 9
This is converted into 96 μsec and managed by a clock, and furthermore, taking into account the variation in the number of clocks per rotation of the belt, this is corrected and used when detecting a belt hole. By performing lock management in this manner, even if there is a change in speed due to belt expansion/contraction or change in roll diameter, this change is incorporated as a change in the clock number, so this change can be absorbed.

Next, correction of M/C blacks and scratches when detecting a belt hole will be explained.

FIG. 47 is a diagram showing a machine clock table, in which Ml, M2 . M3M4 is the machine clock number of the past four belt revolutions. Assuming that the current pointer indicates O, when the number of M/C clocks in the held cycle is obtained, that value is updated as the MIO value.

Then, the pointer is incremented, and when the number of M/C clocks for the next belt circumference is obtained, that value is updated as the value of M2. In this way, the number of M/C clocks for each of the past four belt circumferences is always rewritten and (M1+M2+M
3+M4)/4 is used as the machine clock number to correct the variation.

The timing values of the leading edge of each copy frame with respect to the pinch position thus determined are created as a pitch timer table as shown in FIG. 48, and the pointer values are associated with each other. In addition, since it is actually managed using the M/C clock, the table shown in the figure also shows the number of M/C clocks in correspondence with the timing value.

The pointer value is made to correspond to all pitch reset timings that may occur between the belt and the circumference, for example, θ to 6. For example, in the case of 4-pitch division, the pointer value is 0.2.
4.5 corresponds, and in the case of 3 pitch division, the pointer value is 1.
3.6 corresponds. Further, in the case of 2-pitch division, a pointer value of 0.4 corresponds, and in the case of 1-pitch division, a pointer value of 2 corresponds.

Then, as shown in Fig. 49, the M/C clock is counted based on the belt hole detection time, and when the count value becomes the same as each set M/C clock value in the pitch timer table, that is, as shown in the figure. A pitch reset is generated at the timings of ■ to ■. Then, depending on the selected pitch division, it is only determined whether or not it is the corresponding pitch reset generation timing, and if it is the corresponding pitch reset generation timing corresponding to the selected pitch division, a pitch reset signal is generated. When pitch reset signal is generated, IMM is SQMGR
The pitch timing is notified by activating the CHM pitch processing. Note that the pitch reset signal itself is not notified to any subsystem, and other subsystems are notified of some timing based on the pitch via SQMGR. In this way, since all pitch reset timings are always generated, no matter when a pinch change request is made, it is possible to generate a pitch recent signal at the shortest pinch reset timing.

lff-5-31MM's sea urchin FIG. 50 is a diagram showing the software configuration of TMM.

IMM every lQmseC from the main system monitor,
10m5ec each launched every 100 m5ec
Interval processing unit 820.100 m5ec interval processing unit 821, event processing unit 822 also activated from the monitor, M/C clock interrupt processing unit 823 activated by M/C clock interrupt, REG
It consists of a REGI interrupt processing section 824 that is activated by an interrupt from the r sensor.

(A) 10 msec interval processing 10 m5ec interval processing unit 820 is called from the main monitor every romsec, and inputs inter-mobile interface data, serial interface data, and processor state. IMM is SQ
Since it is a module installed in the same CPU as the MGR, data exchange with the SQMGR is processed as inter-module interface data.

When there is reception from SQMGR, initialization and M/C startup processing are performed after power is turned on, and the power is set to 0N1.
In the send door knob of No. 3, the belt hole is detected after 4 to 5 rotations of the belt, and the M/C clock is counted during that time to calculate the average of the past 4 M/C clocks, and the average M/C clock is calculated. Only when the C clock is determined can the belt be properly managed. Other setup involves turning on the main motor and turning on the machine to start up the machine. The subsequent cent-up processing simply returns a cent-up-end command to the SQMGR upon receiving the setup command. In the start copy process, after the machine is set up and starts operating, information about the start, such as paper size, magnification, binding margin, etc., is obtained from the SQMGR, and a timer for erasing is created, or the created data is transferred to the IEL. At the station, the data is received and processed to create various timers. In getbark processing, when the machine starts running, various remote operations such as charging the photosensitive material with a charge corotron are performed. When these processes are completed, SQMGR sends a getbark request to IMM. When the IMM receives the get-bark request, it notifies the SQMGR when the lead edge of the charged copyable copy frame reaches the get-bark point. M/C
In clock fail check processing, if the M/C clock that should be output every 996 μsec is not output or is irregular, it will become uncontrollable.
At the same time as the start, we started checking to see if it was running regularly, and after the main motor started moving, we started by running for 300 m.
Monitor for 5ec, and if the M/C clock does not come in during this period, it will be considered a failure, and after that, the M/C clock will be activated every 100 m5ec.
The main motor is repeatedly monitored to see if the C clock is on or not until it stops. Further, in the shutdown process, a stop bark process for stopping the first copy panel at a stop bark point in the next copy operation, a jam process, and an emergency stop process are performed. In jam processing,
Based on jam information from CHM, etc., SQMGR notifies IMM of the occurrence of a jam, and upon receiving this information, rMM performs processing to stop the main motor, changing the stopping method depending on the position of the jam and the copy mode. /
If you stop C, you won't know where the paper is stopped, and especially if the paper stops between units, there is a high possibility of tearing the paper when you pull out the unit and remove the paper. The paper that precedes the jammed paper is ejected, and the main motor is stopped so that the paper that follows the jammed paper does not cross between units. In the emergency stop process, the processor state managed by the main system sent from the SQMGR is monitored, and if a hardware failure occurs due to a failure or opening/closing of an interlock, an emergency stop of the M/C is performed. ing.

Further, the IMM performs serial communication only with the IEL, and performs serial interface data processing with the rEL.

Communication error check is a process that checks communication errors with IEL.The monitor checks whether there is a communication error or not.If a situation where communication is not possible occurs, a flag is set at a predetermined address, and IMM looks at this flag. It is aware that a communication error has occurred and notifies SQMGR of this fact.

Belt management processing involves creating an M/C clock table,
Creating a belt management table consisting of the lead edge values of each panel, creating a pitch timer table, REGT correction to correct the registration gate open timing, P, G requests, B JAS requests for 5 consecutive laps,
An open loop check is performed to notify the marking if an SDC request cannot be issued, and a belt fail check is performed to monitor whether the number of M/C clocks around the belt is too large, the belt hole is too large, the belt is not rotating, etc.

(B) 100msec interval processing 100m5ec
The interval processing unit 821 receives a developing device signal, a toner sensor signal, a bottle full sensor signal, and an APS sensor signal, and is capable of detecting the position/absence of the developing device, which is not so urgent, and inputting four types of colors. color detection of the color developing device, toner empty detection, collection bottle full detection,
The platen document size is detected and the detected information is output. Platen original size detection 100
The reason for choosing m5ec is that when a person sets a document on the platen, it is not set properly in the specified position from the beginning, and it takes time to set it in the specified position.
This is because if 5ec interval processing is used, the output of the document size sensor may change many times, and the SQMGR will detect a different document size each time.

(C) Event processing In the event processing performed by the event processing unit 822, pitch reset requires precision, so it should be created using an IM/C clock interrupt, but since there are restrictions on the interrupt terminal, The M/C clock is counted in an internally generated interrupt process, and when the pitch timing is found, a pitch signal is sent to the monitor and the monitor is activated. Then, when the IMM is activated from the monitor, the IMM calls the SQMC;R,CHM which is processing the pitch.

(D) M/C clock interrupt processing The M/C clock interrupt processing unit 823 counts the M/C clock every time there is an interrupt of the M/C clock.
A belt hole detection process is performed in which a belt hole detection signal is input to detect a belt hole, and a pitch timing check process is performed in which a match between each timing value of the pitch timer table and the M/C clock count value is checked.

(E) RECT interrupt processing REC; I interrupt processing sets each timer by interrupting at the timing when the image starts to be printed, and performs prescribed processing on a predetermined position on the photosensitive material. This timer cent performs the image erasing process that turns IEL ON10FF at a predetermined timing from the REC;r interrupt, and the DDP timing control that controls the timing of detecting the surface potential of the patch area provided in the inter-image. AD that controls the timing of detecting the surface potential and toner density of the batch area provided in the interimage
C timing control, black band processing in which toner is placed on a predetermined interimage area to reduce the coefficient of friction of the photosensitive material, and REGr gate timing control are performed.

REGr gate timing control is a process in which rMM notifies CHM of the timing to open the REGI gate. CHM is notified at a predetermined timing from the REG I interrupt, and CHM further sets a timer from that timing, and this timer Amount of densification, N
It is set based on three pieces of information: the registration gate open timing specified by VMAM and registration correction data.

FIG. 51 is a diagram showing a software configuration for generating a reference timing signal according to the present invention.

When the belt hole check processing unit 804 detects a belt hole as a regular one, the counter 801 is cleared each time a belt hole is detected, and at the same time, the pitch timer table creation unit 806 creates a pitch timer table 808.
Create. A pitch pointer 807 indicates the current pitch and is cleared each time a belt hole is detected.

The pitch reset determination processing unit 802 compares the value of the counter 801 and the value of the pitch timer table indicated by the pitch pointer every time there is an interrupt of the M/C clock, and if they match, it determines the number of pitch divisions and the LDC mode. The pinch reset generation processing unit 803 generates a pitch reset signal at a predetermined timing depending on whether the magnification is 200% in LDC mode.

11-5-5 Pichi 1st 1st Floor 5th
FIG. 2 is a diagram showing the flow of pitch timer table creation processing and pitch resent determination processing at the time of belt hole detection and M/C clock interrupt.

FIG. 52(a) shows pitch timer table creation processing by the pinch timer table creation unit 806 in FIG. 51, and when a belt hole is detected (step 1002),
The M/C clock counter is cleared to obtain the number of M/C clocks for one rotation of the belt, and the pinch pointer is cleared to generate a new pitch reset signal for one rotation of the belt (steps 1003 and 1004). Then, the timing value of the leading edge of each copy frame with respect to the REG1 position is calculated, and the calculated timing value is converted into the number of clocks using the average value of the number of clocks for one rotation of the belt (average value for the past four times). A pitch timer table shown in (step 1005) is created.

FIG. 52(B) shows a pitch reset determination process for creating a pitch reset by the pitch reset determination processing unit 802 of FIG. 51 using the pitch timer table created in the process of FIG. 52(A). There is.

Every time an M/C clock interrupt occurs (step 10
11), increment the M/C clock counter (step 1012), and thereafter count the M/C clocks. Then, it is determined whether the contents of the M/C clock counter match the M/C clock value in the pinch timer table indicated by the pitch pointer. , performs the pitch reset determination process shown below (step 10
13, 1014). In this case, since the M/C clock value of the pitch timer tape is the value from the REGT position, the contents of the M/C clock counter are also adjusted to match this value.

FIG. 53 is a diagram showing the flow of pitch determination processing for each pitch division.

FIG. 53(A) shows a case where the pitch pointer is φ, that is, the pitch pointer indicates the home position, and is a case of 4 pitches or 1 pitch. Therefore, first, it is determined whether the pitch division at that time is 4 pitches or not (step 1022).
If it is 4 pitches, it matches the value φ of the pitch pointer, so a pitch reset signal is generated (step 1025).
, Next, if it is not 4-pitch, it is determined whether it is l-pitch or not.

In the case of l pitch, there is also a case of LDC mode, so judge whether it is other than LDC mode, and with 1 pitch,
If it is not LDC, it matches the value φ of the pitch pointer, so the pitch resent generation process is similarly performed, and in other cases, the pitch reset generation process is not performed.

FIG. 53(b) shows the case where the pitch pointer is 1, that is, 3 pitches. Therefore, it is determined whether the pitch division at that time is 3-pitch or not (Step 1032). If it is 3-pitch, it matches the pitch pointer value 1, so a pinch reset generation process is performed (Step 1033). Not performed.

FIG. 53(c) shows a case where the pitch pointer is 2, that is, 4 pitches or 2 pitches.

First, it is determined whether the pitch division at this time is 4 pitches (step 1042), and if it is 4 pitches, it matches pitch pointer 2, so pitch reset generation processing is performed (step 1044). Next, if it is not 4 pitches, it is determined whether it is 2 pitches or not (step 1043), and if it is 2 pitches, it matches pitch pointer 2, so the pitch reset generation process is performed in the same way (step 1044), and in other cases, the pinch reset is performed. shall not occur.

FIG. 53(D) shows the case where the pitch pointer is 3, and there is a 3-pinch.

Therefore, it is determined whether the pitch division at this time is 3 pitches or not (step 1052), and if it is 3 pitches, it matches the pinch pointer 3, so a pitch reset generation process is performed to generate a pitch reset signal (step 1053), and other steps are performed. In some cases, it will not occur.

FIG. 53 (E) shows a case where the pitch pointer is 4, that is, 4 pitches or 1 pitch, LDC mode, and magnification of 200%.

First, it is determined whether the pitch division at this time is 4 pitches or not.In step 1062L, if it is 4 pitches, the pitch pointer is set to 4 pitches.
Since it matches, pitch reset generation processing is performed (step 1066). Next, if it is not 4 pitches, it is determined whether it is l pitch, LDC mode, and whether the magnification is 200%.
When the pitch is in LDC mode and the magnification is 200%, it matches pitch pointer 4, so a pitch reset signal is generated, and in other cases, a pinch reset signal is not generated (
Steps 1063-1065).

In Fig. 53 (f), the pitch pointer is 5, that is, 4 pitches,
LDC mode with 2 pitch or l pitch, magnification 200%
This is the case.

Therefore, first, it is determined whether the pitch division of this and K is 4 pitches or not (step 1072), and if it is 4 pitches, it matches the pitch pointer 5, so a pitch recent signal is generated (step 1077), and if it is not 4 pitches, then If it is 2 pitches, it matches the pitch pointer 5, so a pinch reset signal is generated in the same way.If it is not 2 pitches, it is 1 pitch or LDC mode, and the magnification is 200. % or not, and if 1 pitch is in LDC mode and the magnification is 200%, it matches pitch pointer 5, so a pitch reset signal is generated in the same way (1074 to 1076); otherwise, a pitch reset signal is generated. does not occur.

FIG. 53 (g) shows the case where the pitch pointer is 6, which is the case of 3 pitches.

Therefore, it is determined whether the pitch division at this time is 3 pitches or not, and if it is 3 pitches, it matches the pinch pointer 6, so
Generate pitch reset signal step 1082.10
83), otherwise the pitch reset signal is not generated.

By performing the above processing, 7 shown in FIG.
Among the regular pitch reset signals, a pitch reset signal corresponding to a corresponding pitch is generated.

In the above embodiment, an example was explained in which all the pitch reset signals generated during one rotation of the belt are prepared as a table, but after the belt hole is detected, the M/C
The clock is counted, and when the pitch is changed, the next pitch reset timing is calculated based on the timing of the changed pitch and the number of M/C clocks counted from the current belt hole detection. You can do it like this.

1 [1-5-6 Bell Hole Belt hole detection is a process to recognize the base point of one rotation of the belt, and is performed every time an M/C clock interrupt occurs at an interval of 996 μsec, and the belt hole signal detection state If there is more than 7 M/C clocks, it is assumed that a regular belt hole has been detected, and by detecting it during the M/C clock interrupt, an accuracy of 1 m5ec is ensured.

Also, a check to see if the detected belt hole is abnormal is performed by the belt management process, which is part of the process called from the monitor every 10m5ec, and if it is 29 M/C cronks or less, it is considered normal. This is because the belt hole is the base point for everything, so its detection is strictly performed every M/C clock, and after detection, an abnormality check is performed to ensure that the belt is not torn, even if the belt hole becomes somewhat larger in the longitudinal direction. Since no problem will occur unless something happens, processing is performed every 10 msec.

Figure 54 is a diagram showing how belt holes are detected, Figure 55
The figure is a diagram showing a timing chart of belt hole detection.

In Fig. 54, a belt hole sensor consisting of a light-emitting element and a light-receiving element arranged opposite to each other with a belt in between is turned ON when facing the belt hole, and a rising edge a and a falling edge b of the detection output are obtained as shown in the figure. . The interval during which this detection output exceeds a predetermined threshold level 77 is counted by the M/C clock. This belt hole length is 16.9 pulses as a standard when the M/C clock cycle is 996μsecC, and is max x 18
゜8 pulses, m1n15.1 pulses, 7M/
If there is a C clock (equivalent to a length of 2.15 m), it is recognized as a regular belt hole. 7 M/C clock corresponds to approximately half of the regular belt hole, and if it is at this level, there will be no false detection due to noise.Also, since the belt hole length is detected by the number of M/C clocks, the IM/C clock can be detected with an accuracy of

The timing chart at this time is as shown in Fig. 55. When belt hole detection is performed and 7 M/C clocks are counted, the belt hole detection flag is set, the number of M/C clocks for one rotation of the belt is saved, and the pitch pointer is set. A hole job such as clearing is started.

A Bell Hole In-CPU Figure 56 is a diagram showing the configuration of the main CPU for belt hole detection.

The main CPU has addresses ADφ~15, ABφ~7,
Input ports PAφ~7, PBφ~2.4~7, output ports PB3, PCl, 4, external interrupt terminals NTl, I
6 with NT2, counter input M child Ci, etc.
There are two interrupts because special hardware settings are required.

On the other hand, OPT REGI sensor signal, scan end signal, LD CI7 edge signal, DOCUMEN
Since we want to use all of the T REGr signals as interrupt signals, the OPT REGT sensor signal, scan end signal, and LDC lead edge signal are input to one external interrupt terminal INT2 through an OR circuit.
If any one of the three inputs is received, this is taken in as an interrupt signal. DOCUME
NT REGI signal is another external interrupt terminal TNTI
It is used exclusively by the user. Also, OPT R
The EGI sensor signal, scan end signal, and LDC lead edge signal are input to PB4.6.7, for example, INT
If there is input to 2 and PB4, OPT REGI
-t=7”) signal interrupt, if there is input to INT2 and PB6, L D CU-edge signal interrupt,
If there is an input to INT2 and PB7, there is a scan end signal interrupt, and so when there is an interrupt to INT2, another port is referenced to determine what interrupt it is. The counter input C4 to which the M/C clock is input has the function of generating an interrupt when the input pulse enters the timer event counter and the count value reaches the set value, and can be used as the M/C clock interrupt terminal. It is functioning. The value set in the timer table held by the monitor is counted down every time an M/C clock is received, and the process started by the timer is executed. To detect belt holes, the belt hole sensor is turned on by input to the PB2 terminal.
During period N, this is done by incrementing the counter every time there is an M/C clock interrupt, and the IM/C
It is possible to detect with clock precision.

B Belt Hole Flow FIG. 57 is a diagram showing the processing flow of belt hole detection.

This process starts when there is an M/C clock interrupt, and it is determined whether the belt hole sensor is ON or not (step 1091).
), if N, the M/C clock counter is incremented in step 1093), and if the belt hole counter is 7, the belt hole detection flag is set in steps 1094 and 1095). By referring to this, a belt hole is detected. I know what you did. Then, save the number of M/C clocks from the previous belt hole detection, that is, the number of M/C clocks for one rotation of the belt (step 1096), and clear the pitch pointer and belt hole counter (φ).
Step 1097.1098). Note that step 109
If the belt hole counter does not reach 7 at step 4, the belt hole counter is cleared when the belt hole sensor is turned off (step 1099), and the belt hole detection flag is not set.

〔Effect of the invention〕

As described above, according to the present invention, all pitch reset timings are always created, so no matter when a pitch change request is made, a pitch reset signal can be generated at the shortest pitch reset timing. It is possible. For example, in the case of 4 R/L-1, MIX originals in ADF mode, in the conventional method, it is necessary to hold one belt each time the original size changes, and if there are all pitch changes, it takes four revolutions of the belt. In contrast, according to the present invention, for example, when 4 pitches and 3 pitches occur alternately and no skip occurs, 7/6 rounds (= 2/4 +
The copying will end at 2/3). In addition, belt holes are detected by counting the width of the belt hole using the M/C clock, and when the count value is greater than or equal to a predetermined value and less than a predetermined value, it is determined to be normal, thereby preventing false detection due to noise. In addition, by detecting the belt hole during the M/C clock interrupt processing, it is possible to perform highly accurate detection without using an interrupt terminal.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of the reference timing signal generation device of the recording apparatus of the present invention, FIG. 2 is a diagram showing the overall schematic configuration,
Figure 3 shows the system configuration of the control system, Figure 4 shows the CP
A diagram showing the hardware configuration of U, FIG. 5 is a diagram showing the transfer data structure and transmission timing of serial communication, FIG. 6 is a diagram for explaining a time chart showing mutual communication intervals in one communication cycle, and FIG. Figure 8 is a state transition diagram of the main system, Figure 8 is a diagram showing the configuration of the scanning exposure device, Figure 9 is a diagram showing the configuration of the lens drive system, Figure 10 is a diagram showing the configuration of the optical system control system, and Figure 10 is a diagram showing the configuration of the optical system control system. Figure 11 is a diagram for explaining the operation of the optical system, Figure 12 is a diagram showing how the user interface using a display is installed, Figure 13 is a diagram showing the appearance of the user interface using a display, and Figure 14 is a diagram showing the appearance of the user interface using a display. is a diagram to explain the selection mode,
Fig. 15 is a diagram showing an example of a screen other than the selection mode screen, Fig. 16 is a diagram showing the hardware configuration of the user interface, Fig. 17 is a diagram showing the software configuration of the user interface, and Fig. 18 is a paper transport system. Fig. 19 is a side view of the paper tray;
Figure 0 is a plan view of the Duplex tray, Figure 21 is a side view of the automatic document feeder, Figure 22 is a diagram showing an example of sensor arrangement, and Figure 23 is a diagram for explaining the function of automatic document feed. , Fig. 24 is a side view showing the configuration of the sorter, Fig. 25 is a side view showing the drive system of the sorter, Fig. 26 is a diagram for explaining the action of the sorter, and Fig. 27 shows an overview of the belt area. 28 is a diagram showing how panels are divided on the sensitive material belt, FIG. 29 is a diagram for explaining the functions of the imaging module, FIG. 30 is a diagram showing a timing chart, and FIG. 31 is a diagram showing the imaging module. 32 is a diagram showing the relationship between the marking CPU and the main CPU connected by serial communication, FIG. 33 is a diagram showing the connection relationship between the marking CPU and control elements, and FIG. 34 is a diagram showing the connection relationship between the marking CPU and the control elements.
The figure shows the software configuration of the marking CPU, Figure 35 is a state a transition diagram of the marking system, Figure 36 is a diagram to explain the grid potential control of the charge corotron, and Figure 37 is the illumination control of the optical system. FIG. 38 is a diagram for explaining the control of the developing machine. FIG. 39 is a diagram showing the schematic configuration of the developing machine. 42 is a diagram for explaining the AE, FIG. 42 is a diagram showing a schematic configuration of a cleaner, FIG. 43 is a diagram showing a schematic configuration of an ADC, FIG. 44 is a diagram illustrating division of a copy frame in the present invention, Fig. 45 is a diagram showing the relationship between the belt hole sensor, each copy frame glue method, and timing, Fig. 46 is a diagram to explain the formula for calculating pitch resent generation timing, and Fig. 47 is a diagram showing the machine clock timer table. , FIG. 48 shows the pitch timer table, FIG. 49 shows the timing chart, FIG. 50 shows the software configuration of the IMM, and FIG. 51 shows the device configuration for generating the reference timing signal of the present invention. 52 is a diagram showing the flow of pitch timer table creation processing and pitch recency determination processing, FIG. 53 is a diagram showing the flow of pitch determination processing for each pitch pointer value, and FIG. 54 is a diagram showing the flow of pitch determination processing for each pitch pointer value. Figure 55 is a diagram showing the timing chart of belt hole detection, Figure 56 is a diagram showing the configuration of the main CPU for belt hole detection, and Figure 57 is a diagram showing the processing flow of belt hole detection. It is. 01... Reference position detection means, o2... Reference timing signal creation means, o3... Pitch timer table. Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Masanobu Hirukawa (4 others) Figure 3 Figure 2 Figure 4 Figure 5 (a) (b) LJH (RxDatamaxl) Figure 7 Figure 8 (b) Figure 8 (C) Figure 9 (a) Figure 9 (b) 17 (b) Figure 12 (12th section (a) Figure 12 (b) Figure 14 (15) (a) Figure 15 (1)) Figure 15 (C) 15 (d) Figure 19 Figure 20 Figure 22 @24 Figure 23 (C) Figure 26 (C) (d) Figure 30 Figure 31 Figure 35 Figure 40 Figure 41 Figure 42 Figure 45 Figure 46 Figure 48 Figure 51 (A) 0) IQ45 Figure 54 Figure 55 HOLE J. 8□:

Claims (11)

[Claims] (1) Comprising a reference position detection means for detecting a reference position provided on a photoreceptor that can set a plurality of latent image forming areas, and a reference timing signal creation means for creating a reference timing signal, and a reference position detection means for creating a reference timing signal. A reference timing signal generating device for a recording device, characterized in that the number of latent image areas can be changed without waiting. (2) The reference timing signal generating means performs a timing process from the time of detecting the reference position, and generates a reference signal for forming a latent image to be generated in one rotation of the photoreceptor.
A reference timing signal generating device for the recording device described above. (3) The reference timing signal generation device for a recording device according to claim 2, wherein the time measurement process is performed in an internally generated M/C clock interrupt process. (4) The reference timing signal generation device for a recording apparatus according to claim 2 or 3, wherein the generation process of the reference signal for latent image formation to be generated in one rotation of the photoreceptor is performed in accordance with the number of latent image formation areas and the LDC mode. . (5) The process of generating a reference signal for forming a latent image to be generated during one revolution of the photoreceptor is performed by setting a series of timers corresponding to all the timings at which the reference signal for forming a latent image can be generated during one revolution of the photoreceptor; 5. The reference timing signal generating device for a recording apparatus according to claim 4, wherein the reference timing signal generation device for a recording apparatus performs the generation by determining whether or not the reference timing for latent image formation at the time of timeout corresponds to the current pitch. (6) The reference timing signal generating device for a recording apparatus according to claim 5, wherein the current pitch is indicated by a pitch pointer. (7) The reference timing signal creation means creates the reference timing signal by referring to an image formation reference timer table prepared according to the number of latent image areas, the LDC mode, and the magnification. A reference timing signal generator for a recording device. (8) A reference timing signal for a recording apparatus according to any one of claims 1 to 7, wherein the reference timing signal generating means corrects variations in the M/C clock every revolution of the photoreceptor. Generator. (9) The reference timing signal generating device for a recording apparatus according to claim 1 or 2, wherein the reference position of the photoreceptor is a belt hole. (10) Belt hole detection is performed by belt hole sensor O
10. The reference timing signal generation for a recording device according to claim 9, wherein the condition is that the M/C clock count value incremented every time the M/C clock interrupts in the N period is greater than or equal to a predetermined value and less than or equal to a predetermined value. Device. (11) The belt hole is detected at each M/C clock interrupt, and whether or not the detected belt hole is abnormal is checked by interval processing at predetermined time intervals. A reference timing signal generator for a recording device.