JPH01281461A - Recorder and its power distribution system designing method - Google Patents

Abstract

PURPOSE:To keep the power consumption within the range of the legal rated power obtained from a home power source by generating an energy system diagram for each of parts and/or subsystems and setting a target value of power distribution to systematically design a system. CONSTITUTION:The energy system diagram is generated in accordance with functions, the performance, etc., required for a recorder and the power distribution is determined for each of parts and/or subsystems to manufacture the recorder by way of trial. The power consumption of this recorder is actually measured; and when the power consumption of the whole of the recorder exceeds a prescribed value, the power factor and/or the efficiency are improved and steeling of power is performed on demand. Consequently, parts levels and subsystem levels are generalized to design the system. Thus, the design to keep the power consumption within the range of the legal rated power is established, and this method can systematically cope with the occurrence of any trouble.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a recording device whose power consumption is within a predetermined range;
The present invention also relates to a method for designing a recording device that allows the recording device to be designed systematically.

[Prior Art] When manufacturing recording devices such as copying machines, each subsystem is individually designed according to the required functions and performance, but as a result, it is difficult to use it with a general household power supply. Since a recording device capable of this was obtained, there were no particular problems in terms of power consumption, and even if there were problems, they could be solved by post-processing measures.

[Problems to be solved by the invention] However, when trying to manufacture a high-speed and highly functional recording device, power consumption increases,
A situation has arisen where it becomes unusable. In other words, the maximum power that can be obtained from a general household power supply is 1.5kVA (100V, 15A) including reactive power.
When a recording device, such as a copying machine, is operated at a speed that allows it to make approximately 60 copies per minute, power consumption easily exceeds 1.5 kVA. However, as mentioned above, in the past, when the finished product was actually measured, it was 165kVA.
Due to the circumstances that it was within the range of
There is no established design method for what and how to manage power consumption in order to keep it within the range of 1.5kVA.
If it is unavoidable to exceed 5kVA, use a special power supply with 2kVA or 2.5kV.
There was no way to deal with it other than securing an A.

However, if purchasing a copier requires IT power supply work, it cannot be said to be responsive to market needs. Must dodge, ■200 indoors
If the V or 2OA wiring is not connected, outside line work will be required and a large amount of construction fee will be required.
■If 00A or 20A wiring is installed, only indoor wiring work will be required, but it will still cost around 100,000 yen. ■Even if power supply work is done, the copier cannot be easily moved. This will interfere with changing the office layout.
■Until the power supply work is completed, it will not be possible to bring in a copying machine and perform a demonstration, which will cause problems such as hindering sales activities. Actually, 2.0kV
The expected sales volume of A's copying machine is less than 1/1O compared to that of a 1.5kVA copying machine.

In this way, in high-speed, high-performance recording devices, it is advantageous to keep power consumption below 1.5kVA in terms of sales volume, but it is not possible to design each subsystem separately as in the past. However, it is not possible to achieve this in one line, and the entire recording device must be designed in a systematic manner.

The present invention solves the above-mentioned problems, and provides a design method for keeping power consumption within the legal rated power range obtained from household tiling, and a recording device obtained by the design method. The purpose is to provide

[Means for Solving the Problems] In order to achieve the above-mentioned problems, the present invention first creates an energy system diagram based on the functions, performance, etc. required of the recording device, and then creates an energy system diagram for each component and/or subsystem. Determine the power distribution and make a prototype, then measure the prototype recording device, and if the power consumption of the entire recording device exceeds the specified power, further improve the power factor, efficiency, or both. It is also characterized by the ability to steal power if necessary.

[Function] According to the system design method according to Clause 13 of the present invention, system design can be performed that integrates the component level and subsystem level, so a design for keeping power consumption within the legally rated power range can be established. In addition to being able to deal with any problems that arise, it is possible to deal with them systematically.

[Example] The present invention will be described in detail below with reference to Examples.

Table of Contents In this embodiment, a copying machine will be described as an example of a recording device. Prior to the explanation, a table of contents for the explanation of this embodiment is shown below. In the following explanation, (1) to (11) are sections explaining the outline of the overall configuration of a copying machine to which the present invention is applicable. In the configuration, the section (I[l) describes an embodiment of the system design method for the recording apparatus of the present invention.

(1) Overview of the device (+-1) Device configuration (1-2) Functions and features of the system <1-3) Configuration of the electrical control system of the copying machine (1-4) Serial communication method (i5) Stealth separation (n) Specific configuration of each part (n-1) Optical system (n-2) Belt (n-3) User interface (II-4) Paper transport system (II-5) Automatic document feeder (n- 6) Sorter (DI)/system design (III-1) Necessity of system design cm-2) System design items (!] 1-3) System design flow (!1-4) A system for 1.5kVA countermeasures 1) Apparatus Structure FIG. 2 is a diagram showing an example of the overall structure of a copying machine to which the present invention is applied.

A copying machine to which the present invention is applied has a base machine 1 that can be equipped with several additional devices, and a platen glass 2 on which a document is placed, and an optical system 3 below it.
, marking system 5 are arranged. On the other hand, the base machine 1 includes an upper tray 6-1 and a middle tray 6-1.
2. The lower tray 6-3 is installed, and each of these trays 1
All of the parts can be pulled out to the front, making it easier to operate and saving space for the copying machine, as well as realizing a copying machine with a sleek design that does not protrude from the base machine. There is.

In addition, an inverter 9.10 and a brake node tray 11 are arranged in the paper transport system 7 for transporting the paper in the paper feed tray. Furthermore, base machine 1
A user interface 12 consisting of a CRT display is attached above, and a DADF (duplex auto document feeder) 13 is attached above 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
3 instead of RDH (Recycle! Redocument Handler: A device that returns the original to its original feeding state and automatically repeats document feeding) 15 or a regular ADF (Auto Document Feeder: Automatic manuscript feeding device), Editor Pad ( It is also possible to attach either a platen with a coordinate input device or a platen cover. Moreover, on the supply side of the paper conveyance system 7, MS! (Multi-sheet inserter: manual feed tray) 16 and HCF (heavy cavity feeder two large capacity trays) 17 can be installed, and one or more sorters 19 can be installed on the discharge side of the paper conveyance system 7. Can be installed.

Note that when DADF 13 is installed, the pull catch tray 20 or sorter 19 can be installed, and when RDH 15 is installed, the copied sets can be stacked alternately. (An offset cash register tray 21 and a finisher 22 for stapling each copy of a set can be attached. Furthermore, a folder 23 having a paper folding function can be attached.

2) Functions and Features of the System (A) Function The present invention fully automates the process from entrance to exit of copying operations while providing a wide variety of functions that meet the needs of users. A major feature of this system is that it can be easily operated by anyone, using a CRT display to select functions, select execution conditions, and display other menus.

Its main function is to classify the modes into basic copy, advanced copy, and specialized copy by switching the display screen on the CRT display.
In addition to displaying methods for selecting functions and setting execution conditions using the keypad, it is also 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 sizes of paper ranging from A6 to A2.

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 7 fixed levels, a one-time selection function in photo mode, a double-sided function, a function to set individual left and right binding margins 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, sub-thermal mode, clearing the set number of sheets, all clear to auto mode, information explaining the function, P key for using rC card, maximum lock original that limits the set number of sheets. Full zip recovery using return and DADF,
Purge to eject paper other than the jammed area, full-page copy without blemishes, editor to copy or delete parts of the original, job program to call and process jobs one by one, and insert blank sheets one by one between copies. There are interleaving paper for printing, center eraser/frame eraser used for books, etc.

The display function uses a CRT display, etc. to provide the operator with information on jams, paper remaining, toner/remaining amount, collected toner full, user waiting time to warm up, function selection inconsistencies, and machine status. There are functions such as message display.

In addition, as a diagnostic function, initialization of NVRAM, input check, output check, history files 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 on timing, etc. It has functions such as adjusting the settings and setting the configuration settings.

Furthermore, as an option, MS
I, HCF, second development colors (red, blue, green, brown), editor, etc. are appropriately equipped (11iJ No.).

(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, 1.5kV is applied to each operation mode.
A control method to achieve A has been determined, and power distribution by function has been determined 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.

(Cff) Cost reduction In addition to making expensive parts in-house, improving technology and standardizing them, we are also working to reduce art material costs by improving the life of art materials from the hardware side and reducing toner consumption.

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

(d) Achievement of high image quality In this device, the toner particles are made of ferrite.
'We use a black carrier to make the image finer and develop it 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 improvements improve generation copying and reduce black spots, achieving 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. Various mode settings, including copy mode settings, can be selected according to the user's requests. These user interfaces are
This is done using a CRT 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. Also,
By storing the copy mode, its execution conditions, etc. in advance in a non-volatile memory or an IC card, it is possible to automate certain 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 includes a base machine l shown in FIG. 2, an IC card device, a DADF l3, a sorter 19, a user interface 12, and a supply tray (6-1 to 6-3).
, and a duplex tray 11, the copying machine has a relatively 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 determine the cost burden of copying machines based solely on their own copy volumes, large departments or departments that do not take low-volume copies will be equipped with various additional devices. This makes it difficult to coordinate with large departments or departments that want to make extensive use of copiers.

In such cases, IC cards should be prepared according to the usage pattern of each person or department, and the person or department who wants advanced IT will have to pay more of the basic costs and have many functions. 9 For example, the owner of the most advanced IC card can use the DADF 13, sorter 19, and supply tray by operating the copier with the IC card set in the IC card device. (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 save money by using only the catch tray 20 without a program for sorting (using an IC card).

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 inside the store, each of which is equipped with an IC card device.

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 setting this card, various operating information can be displayed on the 0112, ensuring that copying operations can be carried out without error. can. Whether or not to use the DADF13 and whether or not to perform multicolor recording can also be determined using 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, we will explain a service that uses an IC card that stores a program for a specific user. Because it is necessary to take 2
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, are required to delete information about people who are not eligible for claims or areas that should be kept confidential to protect individual privacy. Create a book or excerpt.

As described above, some users have a demand for using copying machines in special ways. Setting the functions of a copying machine to satisfy all of these requirements would make the console panel complicated and the ROM inside the copying machine large. Therefore, it is necessary to prepare an IC card for each specific user and have them set it. This makes it possible to realize a copying machine with functions most suitable for the 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. By pressing the start button, only the desired range of the original can be copied, or only the necessary parts can be edited and recorded.

(I-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.
, CI-1M subsystem 33.1MM subsystem 3
4. Four subsystems consisting of the marking subsystem 35 and the surrounding U/■ subsystem 36, INP
UT subsystem 37.0UTPUT subsystem 3B
, an OPT subsystem 39, and an IEL subsystem 40. And SQMGR subsystem 32
On the other hand, since the 08M subsystem 33 and the 1MM subsystem 34 are executed by software under the main CPU 41 shown in FIG. 4 along 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 they are implemented in the software below, we will briefly explain these subsystems connected to the primary by a serial communication interface (shown by dotted lines).

The SQMGR subsystem 32 is the U/I subsystem 3
Receives copy mode setting notifications from 6, issues work instructions to each subsystem, and constantly monitors the status of each subsystem while synchronizing each subsystem so that copy work can be performed efficiently. However, it is a sequence manager that quickly assesses the situation when an abnormality occurs.

The CI (M subsystem 33) is a subsystem that controls the paper storage tray, duplex tray, manual feed tray, copy paper feed control, and copy paper purge operation.

(The MM 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 corotron, the exposure lamp, the developing machine, the potential of the sensitive material belt, and the toner density.

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

The INPUT subsystem 37 performs automatic document feeding (D
ADF), semi-automatic document feeding (SADF), large size (A2) If! Feed (LDC), - computer form document feed (OFF), automatic 2-sheet document feed (
2-UP) control, automatic document feed (RDH)
) and detects the document size.

The 0UTPUT subsystem 37 is a subsystem that controls the sorter and finisher, and outputs copies from each mode of sorting, scooking, and non-sorting, and also outputs the copies.

The OPT subsystem 39 performs scanning, lens movement, shutter, and PIS/N0N-PT during exposure of the original.
This is a subsystem that performs S control and also moves the carriage in the LDC mode.

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

The above system is 14 years old and consists of 7 CPUs shown in FIG. 4 as a core, with base machine 1. J: This makes it possible to flexibly respond to combinations of surrounding additional equipment, etc. Here, the main CPU 41 is the base machine 1
3QMGR subsystem 32 on the main board of
It includes software for the CHM subsystem, -33, and 1MM subsystem 34, and is connected to each CPU 42 via the serial bus 53.
~47 is connected. These CPUs 42 to 47 have a one-to-one correspondence with each subsystem connected through the serial communication interface shown in FIG. Serial communication is performed between the main CPU 41 and each of the other CPUs 42 to 42 according to predetermined timing, with 100m5ec as one communication cycle.
47. Therefore, for signals that mechanically require strict timing and cannot match the serial communication timing, each CPU is provided with an interrupt port (TNT terminal signal), and interrupts are sent via a hotline separate from the serial bus 53. It is processed. That is, for example 64CPffl (A41, EF)
Copy operation is performed at a process speed of 309 mm/sec, and registration gate control accuracy, etc.
If it is set to 1 mm, a job that cannot be processed in the 1OQrnsc4c IL communication cycle as described above will occur. 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 (1) If the operation control programs for all of these additional devices were to be prepared in the base machine 1, the amount of memory required for this would be enormous. By becoming. Also,
(11) If you develop a new additional device in the future or improve the current additional device, the ROM in the base machine
This is to make it possible to utilize these additional devices without replacing or adding (LET-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 storage area for storing the program loaded from the RC card together with the functional information of the present invention. Additional storage area includes DADF 1
Various programs such as the control program of 3 and the control program of the user interface 12 are stored.

When a predetermined additional device is attached to the base machine 1 and an IC card is set in the IC card device 22, the program necessary for the copying operation is read out through the user interface 12 and loaded into the additional storage device. It has become.

This loaded program controls the copying operation in cooperation with the program written in the basic storage area, or has priority over this program.The memory used here is backed up by a battery. Non-volatile memory consisting of amplified random access memory. Of course, other storage media such as IC cards, magnetic cards 5, floppy disks, etc. can also be used as nonvolatile memory. In order to reduce the operational burden on the operator, this copier can preset settings such as the seven layer levels and magnification of the image, and these preset values are stored in non-volatile memory. It looks like this.

(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 CPtJ41 and each CPU (42 to 47), data amounts as shown in FIG. 5 fat are allocated to each. In the rat in the same figure, for example, in the case of a user interface, the main C
The transmission data TX from the PU 41 is 7 bytes, the reception data RX is 15 bytes, and the transmission to the next slave, that is, the optical CPtJ 45 (ε timing 1. (C1) in the same figure indicates that it is 26 mS. According to this example, the total communication amount is 86 bytes, which is 96 bytes.
At a communication speed of 00 BPS, the cycle is approximately 100 m5.

The data length consists of a header, command, and data as shown in the figure (bl).
), the entire ε cycle is as shown in FIG. Here, from the communication speed of 96008 PS, the time required to send 1 byte is 1.2 mS, the time from when the slave finishes receiving to when it starts sending is 1 mS, and as a result, 100 mS is one communication cycle. .

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

In state division, the state from power ON to copy operation and after the copy operation is divided into several parts, and the job to be performed in each state is determined, and if all the zips in each state are not completed, the next state is executed. This is to prevent transitions and maintain control efficiency and accuracy. A flag is determined corresponding to each state, and each subsystem can refer to this flag to determine which state the main system is in. Understand where you are 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 you turn on the power, the processor enters the initial rise state 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 user mode, initialization is performed according to the contents of NVM9. For example, the carriage is set to the home position, the lens is set to the magnification 1OO% position, and initialization commands are issued to each subsystem. Initialization is completed. Then 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 fully automatic screen displays "Please wait", then the cork lamp is lit and the phaser idles for a predetermined period of time.
When the phaser 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.

Cent-up is a preparatory state for copying when the start button is pressed and the start button is pressed.The main mortar and sorter motors are driven, constants such as VllIP of the photosensitive material belt are adjusted, and the ADF motor is ONL. When the first document is sent out, the first document reaches the registration gate, the document size is detected, and in the APMS mode, the tray and magnification are determined, and the ADF document is placed on the platen. Then, the second document in 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 pitches 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 set 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 state where copy operation is in progress, and the ADC (Autos
+atic Density Control
), AE (Autosatic Expo
copy operation is performed repeatedly while performing DDP control, etc., and when the R/L-count number of sheets is reached, the document is exchanged, and when this is done for a predetermined number of documents, a coincidence signal is output and cycle down is started.

Cycle down is a state in which the carriage scan, paper feed, etc. are finished, and the copy operation is cleaned up. Each corotron, developer, 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 the start key is pressed 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 a state when a jam occurs, and when the cause of the jam is removed, other sheets are automatically ejected.9 Normally, when a jam occurs, the state transitions from any state to cycle down-standby-purge. Then, when the purge ends, the state changes to standby or cent amplifier, but if a jam occurs again, the state changes to cycle down.

Belt down occurs when a jam occurs on the tray side from the tuff king point, and by disengaging the belt clutch, the belt drive is stopped 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, and the 24V power supply is cut off.

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

(↓L1 difference hμraku (D, #@ (n-1) Optical system Figure 8 (a) is a schematic side view of the optical system, Figure 8 (b) is a plan view, (C) is (b) FIG. 3 is a side view in the XX direction.

The scanning exposure device 3 of the present embodiment employs a PIS (Precession Imaging System) method in which an image is exposed onto the photosensitive material at a speed faster than the moving speed of the photosensitive material belt 4, and a second scanning system B is used. A system is adopted in which the scanning system A is fixed and the first scanning system A is movable independently. That is, the first scanning system A is composed of a first carriage 101 having an exposure lamp 102 and a first mirror 103, and a second carriage 105 having a second mirror 106 and a third mirror 107. scan the original. On the other hand, the second scanning system B is composed of a third carriage 109 having a fourth mirror 110 and a fifth mirror 111, and a fourth carriage 112 having a sixth mirror 113. In addition, the third mirror 107 and the fourth mirror 11
A lens 108 is arranged on the optical axis of 0, 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 120a is disposed opposite to the capstan pulley 116b.
A first wire cable 121a is connected between S12Ob and S12Ob.
The first carriage 101 is fixed to the wire cable 121a, and the wire cable 1213 is wound around a deceleration pulley 122a provided on the second carriage 105. When the motor 114 is rotated in the direction of the arrow shown in the figure, the first carriage 101 moves in the direction of the arrow shown in the figure at a speed v1, and the second carriage 105 moves in the same direction at a speed v, /2. .

Additionally, the timing pulley 11 fixed to the transmission shaft 117
A timing belt 119c is provided between the timing pulley 123a of the transmission shaft 123 and the timing pulley 123a of the transmission shaft 123 disposed opposite thereto.
is stretched, and the capstan pulley 123 of the transmission shaft 123
A second wire cable 121b is stretched between the driven roller 120c and the driven roller 120c arranged opposite to the driven roller 120c. The wire cable 121b includes the fourth carrying ring 1.
12 is fixed, and the wire cable 121b is connected to a deceleration pulley 122 provided on the third carriage 109.
When the carriage motor 114 is rotated in the direction of the arrow shown in the figure, the fourth carriage 112 moves in the direction of the arrow shown at a speed V□, and the third carriage 109 moves at a speed ■, /2. so that they move in the same direction.

Furthermore, as shown in FIG. 8(b), the transmission shaft 117 is provided with a PIS clutch 125 (i) for transmitting the rotation of the timing pulley 117a to the timing pulley 117b.
t magnetic clutch) is provided, and the PIS clutch 1
25 is turned off, it is engaged, and the rotating shaft 11
5 rotations are transmitted to the transmission shaft 117.123. Also,
The configuration is such that when the PIS clutch 125 is energized and released, the rotation of the rotary shaft 115 is not transmitted to the transmission shafts 117 and 123. Further, as shown in FIG. 8(C), a retaining protrusion 126a is provided on the side surface of the timing pulley 116a, and when the LDC rotor solenoid 127 is turned on, the engaging piece 126b engages with the engaging protrusion 126a. , the transmission shaft 116 is fixed, that is, the first scanning system A is fixed, and the LDC lofter switch 129 is turned on. 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 is moved to the engagement protrusion 130a.
a, the transmission shaft 123 is fixed, that is, the second scanning system B is fixed, and the PIS lock switch 132 is turned on.

In the scanning exposure apparatus configured as described above, the exposure methods of the PIS (Brother Imaging System) mode and the N0N-P [S mode] are selected by disengaging and disengaging the PIS clutch 125. In the PIS mode, for example, when the magnification is 65% or more, the PIS clutch 125 is engaged to move the second scanning system B to the speed V! By moving the
The exposure point of the photosensitive material belt 4 is moved in the opposite direction to the photosensitive material, and the scanning speed (2) of the optical system is made relatively faster than the process speed v2 to increase the number of copies per unit time. At this time, if the magnification is M, then V, -VP X3.5/
(3,5M-1), M-1, VP = 308.9
If it is mm/s, then V=432°5 mm/s. Also, ■ is determined by the diameter of the timing pulleys 117bS and 123a and is V, -(1/3 to 1/4) V. On the other hand, in the N0N-PIS mode, the speed of the scanning system increases during reduction. In order to prevent an increase in lighting power and suppress power consumption, for example, if the power is 64% or less, the PIS clutch 125 is released and the PI
By turning on the S lock solenoid, the second scanning system B is fixed and the exposure point is fixed for scanning, avoiding an increase in the load on the drive system and the document illumination power, and achieving a 1.5KVA
This will contribute to the realization of

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 10B is connected to a lens motor Z137 by a wire (not shown), and the lens motor 2
The lens 108 is moved in the Z direction (vertical direction in the figure) along the support shaft 136 by the 13th rotation, and the magnification is changed.

The lens carriage 135 also has a support shaft 1 on the base side.
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 stamping motor. When the lens carriage 135 moves, the lens carriage 1
A small gear 142 provided at the lens cam 143 rotates along the mold surface of the lens cam 143, thereby causing a large gear 144 to rotate and move the mounting base 146 of the second scanning system via the wire cable 145. Therefore, by rotating the lens motor x140, the distance between the lens lO8 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 purpose of light shielding by the lens shutter 147 is to form DDP patches and ADC patches on the belt photosensitive material, and to prevent images from being inserted when the second scanning system B returns in the PIS mode.

FIG. 10 shows a block configuration diagram showing an overview of the subsystem of the optical system. The optical CPU 45 is connected to the main CPU 41 through serial communication and a hotline, and controls each carriage, lens, etc. in order to form a latent image on the photosensitive material according to the copy mode transmitted from the main CPU 41. Control power supply 1
52 is for logic (5V), analog (15V)
, solenoid, and clutch (24V), and the motor power supply 153 is 38V.

The carriage registration sensor 155 is arranged to correspond to the registration position of the first mirror 101, and an actuator attached to the first scanning system A is arranged to correspond to the registration position of the first mirror 101.
55, a signal is output. This signal is sent to the optical CPU 4S, which determines the position or timing for performing a registration shiran, and also determines the position or timing for performing registration shiran.
The home IP address upon return is determined. Further, a first home sensor 156a and a second home sensor 156b are provided to detect the position of the carriage ridge, and the first home sensor 156a is located at a predetermined position between the registration position and the stop position for the first scanning system. It detects the position to the first scanning system and outputs a signal. Further, the second home sensor 156b outputs No. 3 to detect the position of the second scanning system.

The rotary encoder 157 is connected to the carriage motor 114
It is a type that outputs A-phase and B-phase pulse signals with a 90° phase shift depending on the zero rotation angle, for example, 200°.
The axis pinch of the timing boolean of the first scanning system is designed to be 0.1571 mm/pulse in terms of pulse/rotation. The magnification solenoid 159 moves a magnification lens (not shown) in the vertical direction under the control of the CPU 45, and the movement of the magnification lens is confirmed by the on/off operation of the magnification switch 161. Lens Home Sen'? 161 and 162 are lens X
This is a sensor that detects the home position of the motor 140 and the lens Z motor 137. LDC lock solenoid 12
Reference numeral 7 fixes the first scanning system A at a predetermined position under the control of the CPU'45, and confirms that the first scanning system A is locked using the LDC lock switch 129. The PIS lock solenoid 131 fixes the second scanning system B when the PIS clutch 125 is released in the N0N-PIS mode.
Confirmed on 32. The PIS clutch 125 is of a type that releases the clutch when energized and engages the clutch when not energized, and contributes to reducing power consumption in PIS mode and achieving 1.5 KVA.

FIGS. 11(a) and 11(b) show control of the scan cycle of the optical system.
It scans at a scan length and starts when a scan start signal is received from the hotline. An image scan count, which is the number of encoder clock counts from the registration sensor interrupt to the end of the scan, is calculated from the scan length data received from the main. First of all,
After setting the reference clock data corresponding to the magnification, the carriage motor is rotated in the scanning direction (CW) in step ①, and the acceleration during scanning is 111? Perform I (step ■) 0 Then, in step ■, set the PLL (phase control) mode, and if there is an interrupt signal that the register sensor is off in step ■, start the image scan and set the encoder clock count number to the above scan length. When the corresponding value is exceeded (step ■), the PLL mode is canceled, the speed mode is set, and the carriage motor is rotated in the return direction (CCW). Then, in step ■, an interrupt is generated from CW to ccw (c reverse signal). It is determined whether or not there is, and if so, acceleration control is performed upon return (
Step 0), when the encoder count reaches the preset brake start point (Step 0), deceleration control is performed at the time of return (Step ■), and if there is a reverse rotation signal again, the carriage motor is stopped (Step 0). o), also
As shown in (b), set the count number to turn on (open) the shutter, and when the encoder clock number is equal to or greater than the shutter-on count, the shutter is opened, and when the encoder clock number is equal to or greater than the shutter-off count, the shutter is opened. Close the shutter and end the image scan.

(n-2>Belt area 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.9 In the present invention, panel management on the belt, batch formation, etc. are performed as described below. In order to achieve high copy speed and high Nt, the 1MM subsystem 34
and marking subsystem 35 cooperate with each other.

FIG. 12 is a diagram showing an outline of the belt.

An organic sensitive material belt 4 is disposed 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 Ss. 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). If you do not manage the forming area), 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, and the copy mode and paper specified by the user are set. Decide the number of panels (pitch number) to be placed on the belt according to the size, press the start button, and when the first panel to be copied comes to the getbark position near roll 201, a signal will be issued and copies will be made from there. I try to give a signal that says.

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 registration Cn light point) 231, a pitch signal is output, and the timing of the 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. An optical image of a document placed on a platen glass 2 disposed on the top surface of the base machine l is incident on the n-light spot 231 . For this purpose, the exposure lamp 1
02, a plurality of mirrors 101-113 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 Isage Sc
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).

A static latent image 1i corresponding to the original is formed on the organic sensitive material belt 4 by the image information exposed in a slit shape at the exposed portion 231. After erasing unnecessary images, between images, and side erasing with an IEL (Interimage Lamp) 215, the static latent image is normally transferred to the developing device 2 of black toner.
16 or 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 is transferred to a transphascorotron (transfer H) 21 B,) transphascorotron 22.
Passes near 0. Britransphacorotron 21
8 is used to weaken the electrical adhesion of the toner by applying an alternating current to facilitate the movement of the toner. Also,
Since the belt is made of a transparent material, before transfer, light is irradiated onto the belt from the back side using a transfer lamp 225 (also used for erasing) to further weaken the electrical adhesion of the toner and facilitate the transfer. .

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 feed is LEF (Long Edge Feed).
), and the registration gate is controlled to open and close so that the leading edge of the paper and the exposure start position match at the tacking point, and the toner image is transferred onto the copy paper. Then, the paper and the photosensitive belt 4 are peeled off by the detassing corotron 221 and the strip finger 222, and the copy paper after transfer passes between the heat roll 232 and the pressure roll 233 and is thermally fixed. and is discharged onto a discharge tray (not shown).

The sensitive material belt 4 from which the copy paper has been peeled off is made easy 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 batch generator 212 forms batches between images on the belt 4, and the electrostatic potential of the batch 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 degree 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 belt without being peeled off. The case is detected.

FIG. 13 shows how the photosensitive material belt 4 is divided into panels.

Since the belt 4 has a seam part 251, the image is not placed there, and a belt hole 252 is provided at a certain distance Ml from the seam part, for example, with a circumference of 1158 m.
In this case, l is 70 m. 253.254 in the diagram are the first and last panels when the sensitive material belt surface is divided by N bits υj, B in the diagram is the panel spacing, C is the panel length, and D is the panel length. This is the pitch length of the panel, which is 28 in the case of 4 punch divisions.
9°5fi, 386fi for 3 punch split, 579fi for 2 punch split. Seam 251 connects the LE (Lead Edge) of panel 253 and panel 2.
A=8/2 so that it is centered with the TE (Tail Edge) of 54.

Note that the LE of the panel needs to match the L'E of the paper, but the TE does not necessarily match, but matches the maximum paper TE that can be used for the panel.

FIG. 14 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 addition, in a low temperature environment, the fuser is rotated idly to maintain the fixing roll at a predetermined temperature so that rapid copying can be performed. and,
When the start key is pressed, the printer enters the setup state, and before copying, constants such as v l1or are adjusted. When the copy cycle begins, edges are erased at the leading and trailing edges of the image based on the document size, and the required values are erased. Form an image area. In addition, a punch is formed in the inter-image @ leg area to form a punch for adjusting toner density. Furthermore, if a hard down factor such as a jam or a belt failure is detected, the belt is stopped or the machine is stopped by communicating with the sequence manager.

Next, the input/output signals and operation of the 1MM subsystem will be explained.

Black toner bottle 261, color toner bottle 26
The toner detection signal in step 2 is input and the remaining amount of toner is detected.

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

Platen document size sensor S, ~S1. The document size is input from , and the area to be erased by the EL 215 is determined from this and the paper size.

A belt hole signal is input from the belt hole sensor 213, and the process speed is controlled by the main motors 264 and 265. Corrections are made for variations in the time it takes for the belt to complete one rotation.

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 if the size of the hole has changed, this information is transmitted from the IMM to the sequence manager and the machine is stopped.

In addition, the 1MM subsystem is the IEL subsystem 40
In addition to performing serial communication with the
It sends out the L image signal, ADC batch signal, and IEL black band signal. The IEL image signal is used to erase unnecessary images, and the ADC punch signal is used to define the shape and area of the batch area formed by the patch generator 212 using the IEL subsystem 40. The electrostatic potential is adjusted to a constant potential of 500 to 600V by adjusting the load amount. IEL black band signal is Flade 226
In order to avoid damaging the belt 4, blank bands are formed between the images at predetermined intervals, and toner is attached to the belt 4, which acts as a type of lubricant. A gate solenoid is used.

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 the standby state when copy paper does not arrive, no power is supplied to the gate solenoid (the gate remains open to reduce power consumption. The gate solenoid is energized, detects an electrostatic potential to prevent passage, and drives the developer 81216, 217 to form a toner image. Also, the pre-transfer corotron 218, the transfer corotron 220,
It controls the drive of the pig corotron 221.

A pitch recent signal ■ is sent from rMM,
The carriage start timing is determined based on this.

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

A registration gate trigger signal is sent from the IMM to the CHM subsystem 33 to control the paper so that the leading edge of the image coincides with the paper at the tuffing point, and if it is necessary to correct the opening timing of the registration gate, the amount of correction is is calculated and sent.

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

The IMM also drives the fan motor 263 to prevent an abnormal temperature rise and to ensure that the environmental temperature is within the permissible temperature range and a stable copy of at is obtained.

FIG. 15 shows a timing chart.

The reference time for control is the optical registration sensor position. Predetermined time of optical registration sensor on/off signal (
TI) The position is turned off later.

In other words, it is on until T1 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 IEL image signal, and by controlling the registration gate timing, the leading edge of the paper at the tuffing point and the leading edge of the image are aligned. After the image formation is completed, the patch generator request signal (T from the reference time)
s) generates an ADC patch signal to form a patch 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 AE (auto exposure) scanning, 0N10FF of the IBL image signal is not performed.

(n-3) User interface (U/I) (ff-
3-1) Features of User Interface FIG. 16 is a diagram showing how the user interface using the display is installed, and FIG. 17 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 Batterint type console panel is a display board on which a fixed message has been placed at a predetermined position, and is selectively illuminated from behind with a lamp or the like to make that part readable. 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, the user interface 12 can be mounted three-dimensionally above the copying machine main body and the base machine l as shown in FIG. 16 (al). By placing it in the back right corner of the machine body l, the size of the copying machine can be designed without considering the user interface 12, and the device can be made more compact.Furthermore, in the copying machine, the platen The height of the device, that is, the height of the device, is designed to be at the appropriate waist height for setting a document, and this height regulates the height of the device. As mentioned above, the operating section and display section for selecting functions and setting execution conditions are mounted on the top surface at the same height as this, and are located at a considerable distance from the eyes.In this point, the user of the present invention In the interface 12, as shown in i1611mfcl, it is located at a higher position than the platen, that is, close to eye level, so it is easy to see, and the position is not below but in front and to the right of the operator, making it easier to operate.Moreover, it is easy to operate. By bringing the height of the display closer to eye level, the lower side of the display can be effectively utilized as a user interface control board and the card device 24. 24 is not required, the card device 24 can be additionally equipped without changing the appearance at all, and at the same time, the display can be installed in a position and height that is easy to see. Although it 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 installed flat on the front side of the platen, Since the front direction can be easily changed, the display screen can be oriented slightly upward to match the operator's line of sight and the first
As shown in FIG. 6 (bl), by orienting the user interface 12 to the left, that is, to the upper center (direction of the operator's eyes), it is possible to provide a user interface 12 that is even easier to see and operate. ,
In a compact device, an operator is located in the center of the device and can operate the document set and user interface without moving.

(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 around, specify options, and input execution condition data. Further, depending on the menu option, detailed items are displayed in a pop-up display (tune display or window display) to expand the display contents.

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 has further improved the operation keys and LEI.
) By skillfully combining these functions, the operation section can be simplified, and the display control, display contents, and operation input can be diversified and simplified, solving the problem of making the device both compact and multifunctional. are doing.

FIG. 17 shows the appearance of a user interface constructed using a CRT display. In this example, the 0 screen configuration has keys/LED boards arranged on the lower side and right front of the CRT display 301. In the selection mode screen, the screen is divided into multiple areas and one
A selection area is provided as one area, 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 (302-304.306
．． 307.315-318) and LEDs (305,31
1 to 314) are arranged on the right side.

(II-3-2) The display screen configuration screens include a selection mode screen for selecting a copy mode, a revie 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. 18 is a diagram for explaining the selection mode screen.

As the selection mode screen, three screens of basic copy, advanced copy, and specialized copy shown in FIG. 18 (al~(C1) are set.
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. The message area displays J-code messages when there are discrepancies in the copy execution conditions, J-code messages when there is a hardware failure that requires contacting service personnel, and C-code messages that call for various precautions to the operator. be done.

Among these, the J code message creates 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 by referring to the table and if there is a conflict in the copy mode. Output. 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 will be displayed.In the selection area C, a cascade salt is displayed in the upper row,
The lowest level of each cascade area is the default HJt area, and the area above it is a 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 made, the default area is selected and the default state becomes 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 cent count and the 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.

(a) Basic copy The basic copy screen consists of a cascade of "paper tray", "reduction/enlargement J", "duplex copy", "copy density", and "sorter" as shown in FIG. 18 (4).

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 operating 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.

The default for "reduction/enlargement" is the same size, and automatic, fixed/arbitrary can be selected by operating the cascade key. Auto automatically sets the magnification according to the selected paper size and copies at 9x (411x)
can be set arbitrarily from 50% to 200% in 1% increments, and when fixed/arbitrary, the popup screen will display the specific setting target by operating the cascade key, 50.7%, 70%, 81%, 100%
It is possible to select a fixed magnification from seven settings: , 121%, 141%, and 200%, and it is also possible to select and set an arbitrary magnification that changes from 1% to continuous reading.

For "duplex copy", one-sided is the default, and in addition to the default, you can select two-sided - one-sided, two-sided - two-sided, and one-sided - two-sided in the relationship between the original and the copy. This is a one-sided copy, and one-sided → two-sided is a two-sided copy of a one-sided original.0 When making a two-sided copy, the copy paper on which the first side has been copied is placed in the duplex tray first. The copy paper is sent out again from this duplex tray where it is stored, and copies are made on the back side.

"Copy Density" is set to automatic by default, and there are seven density settings other than the default, and seven density settings can be made in the photo mode as well. Setting of this content is performed on the pop-up amplifier screen.

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

You can choose. T-mode is a mode in which copy sheets are sorted into each bin of the sorter, 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'', ``Gutter'', ``Color'', 1st Sheet'', and ``Ejection Side'' as shown in FIG. 18 (bl).

"Special originals" include a function to copy large originals such as A2/83 (LDC), and a function to count holes and copy one line at a time for originals output from a continuous feed from a computer (CFF;
computer form feeder), dual copy function (2-1JF) that copies 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 1 is set in the range of ~15 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.

The "ejecting surface" can be selected other than the default so that either the front side or the back side is forcibly specified for ejecting the paper.

(c) Specialized Copy The specialized copy screen consists of a cascade of "zip memory", "7 edits", "100% fine adjustment", and "erase" as shown in Fig. 18 fc).

"Job Memory" is a page program that uses a card to register multiple zips, call them up and press the start key to automatically copy them. Call and registration can be selected other than the default.

"Editing 7 Shasei" is a function that allows you to select the editing function and composition function other than the default.The editing function is a function for inputting data for editing using an editor, etc. Due to partial color, partial photo,
0 Partial Color allows you to select functions such as partial deletion and marking color. 0 Partial Photo copies only the specified area in one color and copies the rest in black.
Copy the photo to the specified area, and partial deletion will prevent the specified area from being copied. The marking color is
When an area to be marked is specified, for example, a light color is recorded over that area to create an effect as if marking had been performed.

The compositing function is a function for copying one sheet from two originals using a deabrax tray, 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.

"Same 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 erasure" 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. This is the default, and you can set arbitrary dimensions and select a full copy mode that does not erase the border.

(B) Other Screens FIG. 19 is a diagram showing an example of a screen other than the selection mode screen.

(B) Review screen The review screen displays the status of the copy mode selected on each of the three selection mode screens mentioned above, as shown in Figure 19 ('b). The cascade setting status of each selection mode screen is displayed on one screen. This review screen displays the selected item, i.e., the cascade name, and the currently selected mode, i.e., the option. If the selected mode is the default, for example, grayback is displayed, and if it is other than the default, normal brightness is displayed. Fukagawa is highlighted in the background.

(b) Fully automatic screen The fully automatic screen is the screen shown in Figure 19 (al) 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. This screen is displayed with all the cascades of each selection mode screen set to default.In this screen, place the original on the platen according to the instructions, set the number of copies using the numeric keys, and press the start key. When 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 explanations on how to make copies, etc. for each of the copy modes as shown in FIG. 19(C). is displayed, and by inputting the information code displayed on both sides from the numeric keypad, an explanation screen is displayed.

(d) Jam The double-sided jam screen is displayed over the screen that was displayed during copying, as shown in Figure 19+dl, and the jam display content is displayed by lowering the brightness of the original screen one rank at a time. I try to make it clear.

(C) Display am The present invention, as explained in FIG. 18 and FIG.
By simplifying the information on the L1 screen to reduce unnecessary confusion at any given time, and by changing the display style depending on the display area of these layouts and the input setting status, etc., we create a screen with accents that is easy to see and understand. For example, the selection mode screen is divided into a message area (including the 8i area), a setting status display area (including the maintenance information Ig area), and a selection area, as explained earlier. For example, in the message area that includes the count section, the background is black and only the message string is displayed with high brightness, similar to a grasshopper lift type console panel. In addition, in the setting status display area, the background is displayed in a grid display, that is, it is displayed in brightness and darkness with a predetermined uniform density of dots, and the display part of the cascade name is displayed in reverse (characters are dark, background is displayed brightly), i.e. , This display represents each cascade name 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 toner replenishment, but this turbulence is different in nature from the setting status display information, so the difference is clear. The display format is similar to that of the message area so that messages can be easily recognized.

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

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

In addition, on the fully automatic screen shown in Figure 19 fat, 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 displayed with a border. This improves the clarity and makes it easier to see. It goes without saying that the background display 14m can be freely changed and combined as desired.

In particular, regarding the boundaries of areas, such as displaying banks at high brightness (normal brightness with paper white), gray gradation display with reduced brightness, and display using a predetermined brightness and darkness dot density,
The border as shown gives a visual three-dimensional effect and gives the image of a card. In this way, by changing the display g of the background of each area and performing border display, 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 devising changes in the brightness of banks and their characters in character strings as described above, the present invention adds icons (pictograms) to options, cascade names, and other character strings to make them more visually appealing. It is also distinctive in that it adopts a distinctive display mode0.For example, on the basic copy west side, the cascade names "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" option. 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.

(II-3-3) The key/LED board user interface is as shown in Figure 17.
Although it is composed of a T-display and a key/LED board, the present invention is configured to use both sides of the CRT display to display options and set them. Efforts are being made to keep the number 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 the mode selection keys 308 to 310 are used to select either the basic copy screen, custom copy screen, or specialized copy screen, then the cascade keys 319-1 to 319 are pressed.
Except for wet cropping in 319-5, all functions can be selected by simply inputting numerical values using the numeric keypad 307, and copying can be executed using the desired 81 functions. Cascade key 319-1
319-5 is such that the upward movement key and the downward movement key are bare because functions are selected and set 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 LaOs 211 to 313 corresponding to the mode selection keys 308 to 3io are lit.

When a computer has many functions, 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 function is executed as follows. First, Infomeshtunki-30
When 2 is operated, a list of information code is displayed on the information index screen as shown in FIG. 19(C). When the information system code specified on both sides is manually selected using the numeric keypad 307, the screen moves to the information system pop-up screen corresponding to the code, and an explanation screen for the copy mode is displayed there.

Also, as shown above, the selection mode screen is divided into three '+'
r'l and selection settings for various functions defined on three screens, it is also required to be able to check the overall setting status including other screens. 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 that switches the language on both sides of the display.Due to internationalization, users who use various different languages often share the device.Even in such an environment, it eliminates Mm failures. For example, by preparing display data and font memory in two languages, Japanese and English, and switching the display data and font memory by operating the dual language key 304, the display screen can be output by freely switching between Japanese and English. It can be so. 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 turned off when not in use! The preheating mode is set in order to save power and enable a quick transition from a non-use state to a copy operation, and switching between the preheating mode and the fully automatic mode is performed by operating this preheating key 306. Therefore, LaO205 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 on each selection mode screen, and displays fully automatic duplex mode. This is the content of the screen that informs the operator that the current copy mode is fully automatic, as shown in FIG. 19(a).

The interrupt key 315 is used when continuous copying is in progress and it is necessary to perform another emergency or make a copy, and is used to return to the original copying operation when the interrupt processing is completed. The removal of the cuts is also performed. LED
314 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 Ia function selection and its execution conditions are completed and the copying operation is started.

(n-3-4) User interface restrictions? Il System Configuration FIG. 20 is a diagram showing the hardware configuration of the user interface, and FIG. 21 is a diagram showing the software configuration of the user interface.

(A) Hardware configuration The user interface system equipped with the U/IJ IC CPU 46 basically consists of a CRT5 temporary 331 and a CRT display 30 as shown in FIG.
1 and a key/LED board 333. And CI? The TJJ board 331 is the U/I that centrally controls the sheet metal 31.
JICPU 46, CRT controller 335 that controls the CRT display 301, key/LED board 333
・Toe board/display controller 3
36, and further includes a program memory (ROM) 337 for storing each of the above-mentioned programs as a memory, and a frame memory (1'?OM) 33 for storing frame data.
8. RAM339, part of which is configured as non-volatile memory and is used as a work area as well as storing tables and display control data.Two sets of VRAM (video RAM)
M) 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 24 in 10mm (V) display area
If the dot pitch is 0.33 mm x 0.46 mm and the tile (character) dot configuration is 8 x 16, the number of tiles will be 60 x 15. Therefore, by displaying kanji characters with 16 dots x 16 dots and alphanumeric characters and symbols with 8 dots x 16 dots, Kanji characters can display 30 x 15 characters using two tiles. In addition, four gradations of normal brightness, gray 1, gray 2, and black level are specified for each tile, and reverse, blink, etc. are also displayed.

The input signal timing for such a display is 64p when the dot frequency f6 is 10MHz and 480x240.
The video data is processed for 48 μs with the period of the horizontal synchronization signal S, and the video data is processed for 15 μs with the period of the vertical synchronization signal of 1
．． Video data will be processed for 36m5.

The keyfod/display controller 336 is
The output of the clock generator 346 that is input to the I CPU 46 is divided into 1/4 by the counter 347 to 2.7648.
A key/LED scan time of 4.98 m5 is created by inputting a MHz frequency and dividing the frequency by 1/27 to 102 kHz using a prescaler.

If this scan time is not 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.On the other hand, if it is too short, the CPU operation frequency will increase. This will cause the throughput to drop. Therefore, it is necessary to select the optimal scan time taking these situations into consideration.

(B) Software configuration of software configuration user interface, No. 17
As shown in the figure, there is a monitor with functions for I10 management, task management, communication (3 protocols), a video controller with R functions for key manual management, screen output management, job management, control, selection judgment, and mode determination. It consists of a job controller that has the following functions.As for key human power, the video controller processes the physical information of the key, and the zip controller recognizes the mode, checks the acceptance conditions, and controls the job. For 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 then executes the commands and edits the screen.
A key change detection unit 36 that performs drawing and will be 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 section 362 performs a double press check or continuous key press state detection on the 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 (logical information), and checks the key acceptance condition of the logical key (current key). A request is made to the ship controller.The conversion table 364 is
When converting this physical key to a logical key, the key conversion unit 3
For example, even if the cascade key is the same physical key, the logical information differs depending on the screen, so the conversion from a physical key to a logical key is controlled by the display screen information of the display side '+8 data 367. Ru.

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 screen switching unit 368 stores the logical key for expanding the pump-up screen as a table, and when the logical key is operated and there is no other key manpower within 750m5ec, it will expand both sides of the pop-up screen. This process updates the display control data 367. In the process of selecting a certain option, an option to temporarily expand the pop-up screen by pressing the cascade key may be selected, and in such cases, the pop-up screen This is done to prevent this from being expanded all at once. Therefore, even if it is a logical key that opens a pop-up screen, 7
If there are other key personnel within 50m5cc, -
This will be ignored as a temporary key human resource. In addition, in the case of updating the state such as the occurrence of a jam, updating the copy mode other than cascade transfer, or updating the message or count value, the display control unit 369 receives an interface command from the job controller and analyzes it. Display control data 367 is updated.

The display@control data 367 has data for controlling the display of each double side, such as the double-sided number to be displayed and display variable information in the screen, and the dialog data 370 has the basic frame of each screen, the display data of each frame, and the display Reference address of variable data among data (display system that stores display variable information?)
It is a hierarchically structured database having 367 addresses (I data 367).

The dialog editing unit 366 creates a 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, the display data is determined according to the display variable information of the display control n data 367, the screen is edited, and the display screen is stored in the V-RAM 365. between jrfi.

In the job controller, the key management unit 374 refers to the state table 371 and checks whether the logical key is currently in an acceptable state. The key information is determined and sent to the key control unit 375 on the condition that the key information is not entered manually. The key control unit 375 performs key reception processing and enters the copy mode 375.
8 updates, mode checks, and issues copy execution commands, grasps the machine status, and passes display control information to the display management section 377 to control the display. Copy mode 378 includes basic copy, advanced copy,
The display management section 377, in which each copy setting bond of the specialized copy is sent, issues an interface command to the video controller based on the result of the key tube Fu section 374 or the key control section 375, and executes the interface routine. (Display system 9n section 369) is activated. After the start key is operated, the zip control unit 376 receives machine operation information, issues commands for controlling the machine, and performs management for executing a copy operation for one sheet of original.Command control The unit 373 notifies the state management unit 372 and zip control unit 376 of the status of the received command sent from the main body, and also receives commands for execution from the zip control unit 37G during job execution and sends them to the main unit. Therefore, when the start key is operated and the key control section 375 sets a command corresponding to the copy mode in the transmission buffer 380 to execute a copy operation, the commands indicating the operating state of the machine are sequentially transferred to the reception buffer 379. By notifying this command from the command control unit 373 to the zip control unit 376, each time copying is completed one by one, the next A copy execution command is issued. During the copy operation, when a jam occurrence command is received, the state management unit 372 recognizes the jam state through the command control unit 373, updates the state table 371, and at the same time updates the key control unit. 375, the display management unit 377 issues an interface command for the jam screen mode i1 to the video controller.

(■-4) Paper transport system In Fig. 22, the upper tray 6-1 serves as the paper tray.
, a middle tray 6-2, a lower tray 6-3, and a duplex tray 11 are installed in the base machine, and optionally a large capacity tray (HCF) 17 on the side.
A manual feed tray (MS■) 16 is equipped, and each tray is equipped with a simultaneous no-vapor sensor, a size sensor, a clutch, etc. (tH). Here, the no-paper sensor detects the presence or absence of copy paper in the supply tray. The size sensor is a sensor for determining the size of the copy paper stored in the tray.The clutch also controls on/off the drive of each paper feed reroll. 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 fed from the other supply trays. feed automatically.

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 as a registration register for aligning the leading edges of the copy sheets that have been sent out.

This gate solenoid is different from ordinary solenoids of this type in that when energized, the gate opens and the copy paper is passed 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, fluctuations in the gate position at the time when the leading edge of the copy paper is prevented from passing will be reduced, and even if the copy paper is pressed against the gate with a relatively strong force, its positioning will be reduced. can be done accurately.

When copying again using the duplex mode that copies on both sides of the paper or the composite mode that copies multiple times on the same side, the paper is guided to the conveyance path that stacks on the duplex tray 11.In the case of the 8 duplex mode, the paper is guided from the conveyance path to The duplex tray 11 is directly transferred to the tank, but in the case of the combination mode, the inverter 10 for the combination mode is transferred from the conveyance path.
Thereafter, the paper is turned over and guided to the duplex tray 11. Note that a gate 503 is provided at the branch point between the paper discharge outlet 502 from the conveyance path 501 to the soak etc. and the duplex tray 11 side, and the branch leading to the impark lO for composition mode on the duplex tray ll side. At the point there is a gate 505 for switching the conveyance path.
．． Furthermore, the paper discharge outlet 502 is provided with a gate 507, and is reversed by the tri-roll inverter 9, so that the paper can be output at tJF with the copied side facing up.

The upper tray and middle tray hold approximately 500 sheets of paper, A3-B5, legal, letter, and special B4.11X17.
This tray can accommodate paper sizes of . And the second
As shown in FIG. 3, a tray motor 551 is provided, and a tray 552 is tilted when the number of sheets decreases. The sensors include 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. Also,
There is a 7-level switch 558 to prevent the tray from rising too high. The number of sheets of paper in the lower tray is 1.
This tray can store approximately 100 sheets of paper of the same size as the upper and middle trays.

In FIG. 22, the Duplex tray is a tray that can accommodate approximately 50 sheets of paper, the same size as each of the above trays, and can accommodate approximately 50 sheets of paper on one side of the paper. This is a tray that temporarily stores copied paper when copying is performed several times or when copying is performed alternately on two sides. A feed roll 507 and a gate 505 are arranged on the entrance side conveyance path of the duplex tray L.
For example, in the duplex mode, the paper conveyed from above is guided to the feed roll 509 side by the gate 505, and the paper conveyance is controlled according to the composition mode and the duplex mode by the gate 505. In this case, the paper conveyed from above passes through the gate 505.50.
6, the composite mode inverter I (H is led once,
After that, it is reversed and guided to a feed roll 510 and a duplex tray 11m by a gate 50G. To store paper in the duplex tray 11 and let it fall freely to a predetermined edge position, -i should be set at 17° to 20°.
A tray IIJI bevel of about 100 ml is required. However, in the present invention, since the device is made compact and housed in a narrow space, the maximum bevel angle is only 8°. As shown in FIG. 24, side guides 561 and end guides 562 are provided. In controlling these side guides and end guides, once the paper size is determined, the paper is stopped at a position corresponding to the paper size.

The Human Care Tray (HCF) is a supply tray that can hold several dozen sheets of copy paper. , it is often appropriate to purchase the base machine alone.

On the other hand, what about customers who make a lot of copies? ! Duplex trays and large-capacity trays are often required by customers who require complex copying operations.As a means of realizing these various NI requirements, this copier system has each additional device installed in front of it. Is it structured so that it can be simply attached or removed, and some of the additional devices are provided with independent CPUs (central processing units)? i
It is decided that distributed control will be performed using several CPUs. This has the advantage of not only being able to easily obtain the product that the customer desires, but also providing the customer with the possibility of new additional equipment (the possibility of a new copying operation being one digit). This makes the purchase of this copier system very attractive as it will improve the evolution of office processing.

Manual feed tray (MSI)! (i is a tray that can accommodate approximately 50 sheets of paper and paper sizes A2F to A6F, and in particular can use large-sized paper that cannot be accommodated in other trays. Since the tray manually feeds one sheet at a time, it is only necessary to feed the copy paper preferentially from the manual feed tray when manual feeding is performed, and there is no need for the operator to select the manual feed tray itself.7 In contrast, the present invention The manual feed tray 16 can set multiple sheets of copy paper at the same time.

Therefore, if you set the copy paper and feed it from the manual feed tray 16, the copy paper will not be loaded. There is a possibility that the feed will start when some 31 sheets are set. In order to prevent such a situation, the manual feed tray 1G 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 the paper, thereby performing pre-registration storage to adjust the transfer position and eliminating variations in paper feeding at the feeder unit. is absorbed. The fed paper is fed to the transfer position of the photosensitive material belt 4 via the aligner device 515.

(II-5) Automatic document feeder (DADF) No. 2511
At 111, the DADF 13 is mounted on the platen glass 2 of the base machine l. This D.A.D.
P I 3 has a document tray 60 on which a document 601 is placed.
2 are provided. 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. The sent document 601 is conveyed to the arcuate conveyance path [i09] by the first drive roller 605 and its driven roller GOG, and the second drive roller 607 and its driven roller 608.

Further, the arcuate conveyance path 609 is a manual feed conveyance path 610.
A third drive roller G12 and its driven roller 613 are provided at the exit of the arcuate conveyance path 609. This third driving roller 612 can be moved up and down by one degree by a solenoid (not shown), and can be lowered by one degree with respect to the driven roller 613.
It is configured so that it can be cut once. A stop gate 615 rotated by a drive motor (not shown) is provided on the horizontal conveyance net.
is provided, and a reversing conveyance path 616 is connected from the horizontal conveyance path 611 to the arcuate conveyance path 609 (i16 includes a fourth drive roller 617
is provided. Also, a belt drive roller 619 is mounted on the platen glass 2 opposite to the exit of the horizontal conveyance path 611.
A belt 621 stretched between the driven rollers 620 can be rotated in forward and reverse directions. A fifth driving roller 622 is provided at the exit of the feeding section, and
The manual feeding conveyor &3 (ilO has a sixth drive roller 6
23 is arranged *g! Two moving rollers 623 are provided in the front and back direction of the base 72210 (in the direction perpendicular to the paper surface in the figure), and are configured to be able to feed two originals of the same size at the same time. Note that 625 is a cleaning tape that cleans the surface of the delivery paddle 603 by the seventh drive roller 626.

Next, referring to FIG. 26, photosensors S1 to S1□
I will explain about it. Sl is the document 6 on the document tray 602.
sX is a take-away sensor that detects the passage of a document, S, , S,
are feed sensors provided before and after the manual feed conveyance path 610, SS is a registration sensor that corrects the skew feeding of the document by the skew roller 627, and detects whether the document is at a predetermined position at the stop gate 615; Vapor size sensor S that detects the size of the original.

is an ejection sensor that detects whether or not the original has been ejected;
g is an end sensor that detects the end of the cleaning tape 625.

Next, with reference to FIG. 27, the DADF consisting of the above configuration
The action of l3 will be explained. (A) is the 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 you press the start button, 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 'C horizontal conveyance path 611. Due to the dirt, the document 601 passes through the arcuate conveyance path 609 and is pressed against the stop gate 615 (■ to ■). The sensors S, ~S, are corrected to be perpendicular. Then, the third drive roller 612 moves downward and comes into contact with the driven roller 613, and the stop gate 61
5 rises to open the horizontal conveyance path 611, and the third drive roller G12, belt drive roller (il'l) and fifth drive roller 622 rotate, and the side to be copied of the document is placed down on the platen 2. After being sent to a predetermined position above and exposed to light,
be discharged. 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 simultaneously feeding two originals of the same size (2-tJP), the large Send manuscript I&T (LDC)
, has a computer form feeder (CCF) function that feeds continuous paper for computers.

(C) is the duplex mode, and the process of exposing one side of the document is the same as the steps Φ to ■ in (B) above, but when the single side exposure is completed, the belt drive roller 619 is reversed, and The third driving roller 612 moves upward and flies together with the driven roller 613, and the stop gate 615 extends downward to block 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 ■)0 Next, the third drive roller (i12) 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 driving roller 612, the belt driving roller 619, and the fifth driving roller 622 rotate, and the original is sent to a predetermined position on the platen 2 with the back side facing down. When the exposure of both sides is completed, the belt is driven again. The roller 619 reverses, and the document is again conveyed to the reversing conveyance path 61G, and thereafter passes over the platen 2 and is discharged by the fifth drive roller G22 (■~[phase]).Therefore, the discharged document is The document tray 60 is placed first with the first side to be copied facing downward.
They will be laminated in the order in which they were laminated in No. 2.

(Ill-f3) Sorter In FIG. 28, the sorter 19 has a sorter main body 652 and 20 bins 653 on a movable cart 651. Inside the sorter body 652, a belt drive roller 65G 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 65B. 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. 29, 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 65G and also to the chain drive sprocket 660 via the gear device 674.

Next, its operation will be explained with reference to FIG. 30. (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 to be stored per bin is exceeded. For example, when the number of sheets exceeds 50, the sheets are stored in the next bin.

< -1111 no 5 human design (lI [-1) Necessity of system design So far, we have explained in detail the configuration of a copying machine as a recording device, but when the number of copies per minute is A4
Copying machines that operate at high speeds (up to 64 plates) and use a large number of parts to achieve even higher functionality consume a large amount of power. On the other hand, power supplies normally used in homes and offices have a voltage of 100V and a maximum current of 1
Since it is specified as 5A, the electric power is 1.5kVA.
is the limit. Is it special if the power consumption of the copier is a problem? For example, it would be possible to obtain 20A with an IT source, but [the intelligence B that the invention is trying to solve]
] As mentioned in the section above, due to the sales volume, 1.
Whether or not to keep it within the 5kVA range is an issue that is at the core of the product concept.

Now, in order to keep the power consumption of a copying machine within the range of 1.5 kVA or a concave circle, it is necessary to consider the materials such as toner, the characteristics of the parts used (mechanical parts and electrical parts), and the control method of each subsystem. , timing diagrams, etc. need to be managed in an integrated manner. For example, the material of the toner may affect the power consumption and the performance of the recording V2 device. In other words, if a high temperature is required to fix the toner, the fuser lamp In contrast, so-called low-melt toner, which fixes at low temperatures, requires a large amount of current to flow through it, which increases power consumption.However, with so-called low-melt toner, which fuses at low temperatures, the user consumes less power, and the motor etc. consume more power. can direct current,
It becomes possible to increase the operating speed. Another problem is what kind of photoreceptor to use. This is because if the sensitivity of the photoreceptor is good, the amount of light from the exposure lamp can be reduced, so the lamp power can be reduced.
Similarly, if the charging property is good, the high voltage power supply port 't3
This is because the customer base of HVPS (hereinafter referred to as HVPS) can be reduced. However, it is not just a matter of using a photoreceptor with good sensitivity and charging characteristics; no matter how good the sensitivity and charging characteristics are, if the toner developability is poor, it will not be possible to make high-quality copies. be. Therefore, it is necessary to select a jδ light body by considering not only sensitivity and l characteristics, but also compatibility with the toner material.Furthermore, there is no debate as to whether to use a fluorescent lamp or a halogen lamp as an exposure lamp. This affects not only power consumption but also the size of the recording device. In other words, halogen lamps have a small tube diameter, so they have little effect on the height of the recording device.
Although it is more advantageous than fluorescent lamps in terms of cost and ease of light intensity control, the extinguished Ft power is large and when scanning at high speed, the ratio of carriage acceleration to ccm force acceleration during scanback is ) is not tolerated. On the other hand, fluorescent lamps have a tube diameter of about 40 cm, so the height of the recording device is somewhat increased, but they have the strength to withstand G and are especially advantageous in terms of extinction. The lamp to be used is decided based on these comparative studies. In addition, the selection of the 1tjll method also affects the efficiency and power consumption. For example, L V P S and I
In the IVS subsystem, alternating current must be converted to direct current, and power consumption is affected by the conversion efficiency. Therefore, the conversion method from AC to DC should be either a series drop-down type, a titanium type, or a pulse 111 variable ta type (PWM), and if the latter is adopted, a bipolar element as a switching element or a unipolar element should be used. Since the number of elements to be used is an important issue, it is clear that it is necessary to systematically consider the determination of toner or lamp.

In this way, changing one component affects not only the power consumption, but also the overall size of the recording device, the control method, etc., so it is not just a matter of using low-power components; It is understood that this cannot be done independently for each subsystem, and therefore must be handled systemically in order to keep the power consumption within the range of 1.5 kVA.

(II-2) System design items Now that you understand the necessity of system design, you must clearly understand what items need to be managed. From Figure 0, it can be seen that when designing a system, it is necessary to manage it at the system level and component level.

At the system level, it is necessary to manage five items: power factor improvement, DC/8C selection timing adjustment, stealing, and power distribution.

First, power factor improvement is absolutely necessary to reduce the reactive power of the entire system.

D C/A C selection is a question of whether to flow alternating current or direct current to a certain load, and the criterion for deciding whether to adopt it is the efficiency and the possibility of improving efficiency. An example of this is whether to use a DC motor as the motor or an AC motor.
In the case of a DC motor, a low voltage power supply circuit (hereinafter referred to as LVPS) is required to convert alternating current to direct current, and the total efficiency is expressed as the product of the efficiency of the motor itself and the conversion efficiency of the LVPS. For example, if the motor efficiency is 0.6, LVPS
If the conversion efficiency is 0.6, the total efficiency will be 013G. On the other hand, in the case of an AC motor, alternating current can simply flow through the motor, and its efficiency is about 0.3 to 0.4. Therefore, which motor to use is determined by comparing the efficiency or by taking into consideration the possibility of improving the conversion efficiency of LVPS. In this way, whether to convert to DC or operate directly with AC is a matter that must be considered system-wise.

The idea is to equalize the load as much as possible by adjusting the timing. The current waveform when the copying machine is operating is as shown in FIG. 32, for example. This is because the negative port changes in various ways depending on the operating timing, such as becoming a capacitive load or an inductive load.The problem is whether or not the current exceeds 1.5kVA when it reaches its peak. But even if it exceeds the load, can you even out the load? ! [If you reduce the difference between the peaks and valleys of the waveform, 1
．． It can be kept within the range of 5kVA.

This is the perfect timing.

Even if you adjust the timing, there are limits.

For example, in order to achieve a copy speed of 64 copies per minute, it is necessary to run a large current to quickly return to the home position when the first scanning system returns due to operational timing, and a current peak occurs immediately after this point. This is unavoidable.If a peak current occurs even after adjusting the timing, the current flow to the oil load is stopped at the moment of the peak.This is called stealing. This allows you to balance the load and reduce peak current. Power distribution means to distribute power to each component and each subsystem in advance. This is a target value for each subsystem, and is used to satisfy the required specifications in its power distribution. As mentioned above, it is not possible to keep the power consumption within the 1.5kVA range by designing separately, but it is only possible to take measures against 1.5kVA by systematically grasping the power consumption in this way. It becomes.

At the component level, it is also necessary to manage G items such as efficiency, power factor, torque, total power, technology selection, and suction power. The need to manage efficiency, power factor, and torque should be obvious.

Selection of technology means which manufacturer's parts to use when using certain parts.
As mentioned above, even if a single toner is used, it has a large influence on the entire system, so it is clear that it is necessary to consider the system-wide consideration of what kind of parts to adopt. The suction force is how to apply the suction force to the solenoid load. Even if the solenoid load is the same, the load will differ depending on the shape of the link a structure etc. It is necessary to systematically reduce the suction force required by the solenoid to effectively utilize electric power.

As is clear from the above, it is not possible to keep power consumption within the range of 1.5kVA by performing separate designs as in the past, and it is not possible to keep power consumption within the range of 1.5kVA. Measures against 1.5kVA will only be possible if management is carried out.

(III-3) Flow of system design Once the items to be managed in system design have been determined, the next question is how to manage these items, that is, what procedure to perform system design. but,
As a result of various studies, we have found that it is best to follow the flow shown in Figure 1.

First, in process O1, a basic system is established.

Specifically, this includes such things as where to set the maximum power consumption (■A), what value to set for EPM (number of copies per minute), whether or not to adopt a sagging system, etc. It is to create a family tree. The sagging system means that when the temperature of the fuser drops, 5' To allow the machine to stop operating, that is, if TO is the minimum temperature necessary for fixing the toner, the user design can be summarized as follows.
Even when continuous copying is performed, the song vA in Figure 33
700, so that it does not fall below TO, but in order to do this, it is necessary to supply a large amount of current to the fuser lamp, and the total current is 1.5 kV.
In such a case, it may exceed A.
The sagging system allows the user temperature to fall below TO, as shown by curve 701 in FIG. 33, and stops the operation of the copying machine when TO. In addition, when adopting a sagging system, it is necessary to keep the number of continuous copies at least 100 sheets, and it is recommended that the operation be started automatically when the user temperature rises after the operation is stopped. good.

In addition, an energy system diagram, as shown in Figure 34, is a hierarchical diagram that shows what kind of subsystems a copying machine has and what kind of loads are connected to each subsystem. Yes, ■, ■ PS as an example, it is as follows. In addition to LVPS-1 for processors with four outputs as shown in the figure, LVPS-2 and LVPS
Although not shown in Figure 9, where the PS-3 is installed, the LVPS-2 is used as a power source for the servo, and the LVPS-2 is
LVPS-3 outputs 6°5V and is used as a power source for the sorter.2. It is designed to output IV. The reason why the LVPS is of the three-unit distributed type is to distinguish between the power supply for the circuits that are used all the time and the power supply that is required only when using the obscene, thereby reducing the power capacity for the obscene. In other words, for example, if a 24V power source is obtained from the LVPS-1, the LVPS
I also has the capacity for the sorter which is obcilin f
Since it is very uneconomical to maintain σ,
The power supply for Obsin was configured separately and was made to be used only when Obsin was in use. To explain LVPS-1 in more detail, the sensor is connected to the +5v power supply of LVPS1, and the solenoid is connected to +5v of LVPS1.
It can be seen that it is connected to a 24V power supply. Although not shown, the CRT for the user interface is powered from +15V. By using this diagram, for example, if the power consumption of the solenoid increases by a certain value, you can intuitively determine how much the load on the subsystem LVPS 1 will increase and what will happen to the whole in the end! I can hold it. Furthermore, in addition to power consumption, for example, if t, vps, iO power ratio, or efficiency improves, how much it will contribute to the overall system can be determined through simple calculations. . Note that FIG. 34 shows a part of the energy system, and there are actually many more subsystems, and each subsystem is connected to a load. Once the basic system has been formulated in process 01, target values for each component and subsystem are set in process 02.

There is no problem if the total power requirement for each subsystem necessary to satisfy the specifications required for a copying machine is 1.5 kVA or less, but if it exceeds it, design by giving a target value. , After making a prototype according to the target value in process 03, actual measurement is performed in process 04. What is measured is torque, current, etc. at the component level, and total efficiency, timing, current, etc. at the system level. As a result of actual measurement in process 04, the power in process 05 is 1. If it is 5kVA or less, the design is finished, but if not, process 06 is performed, and the target value is 1. Since it is set to satisfy 5kVA, there is no problem if the target is configured in all subsystems, but there are cases where the target value is not enough to satisfy the required specifications. Process 06 is provided in .

In process 06, power consumption is further reduced.

Improving the power factor, efficiency, stealing, and other improvements to keep it below 5kVA. Compliance with the power factor is essential for reducing reactive power and effectively using power. 0 For example, since the LVPS uses a large capacity capacitor as a load, it is a leading phase, and the motor is an inductive load, so it is an arbitrary phase. It goes without saying that it is necessary to improve the power factor of the motor itself in these LVPSs, but it is also necessary to improve the power factor at the system level. In other words, when the LVPS and motor are combined, it is necessary to improve the power factor of the system so that the power factor is balanced.The same goes for efficiency; the more efficient the LVPS is, the more effectively the power will be used. As mentioned above, we want to operate the motor at the maximum torque, but as shown in Figure 35, the torque depends on the current value, that is, it depends on the load, so if the fL load becomes heavy, the current will increase. increases and ζ torque decreases.In such a case, it is necessary to lighten the load by using a ball bearing for the shaft so that it can be driven with the maximum torque.When using a ball bearing for the bearing When using metal bearings or plastic bearings, the latter is more advantageous in terms of cost, but ball bearings are more effective in terms of not only power consumption but also noise. L: As mentioned above, it is effective to use an exposure lamp etc.This will be explained later.Other methods include changing parts,
There are countermeasures such as changing the belt routing layout and removing the LVPS17) bleeder resistance, but these will also be described later.

After taking such measures, the actual measurement is performed in process 07, and if it is determined in process 08 that it is 1.5 kVA or less, the design is completed, but if not, the process returns to process O1 and the process explained above is completed. Return the border.

In this way, a copying machine can be designed systematically.

(III-4) Measures for 1.5kVA Now that you understand the flow of measuring instrument stem design, you need to know what to do as a countermeasure for 1.5kVA. A specific example will be explained.

■Fuser Subsystem In the user subsystem, the first problem is the material π of the heat roll. In the past, aluminum was usually used, but replacing this with copper improves thermal conductivity and reduces power consumption.

In addition, the tolerance of the fuser lamp can be increased from ±3% to 12%, for example.
If the current rating of the fuser lamp is 800 VA, and the tolerance is ±3%, then 824 VA must be secured, but if the tolerance is 12%, then It is sufficient to secure 81fiVA, thereby reducing power consumption.

Furthermore, in the user subsystem, for load smoothing,
When the scanning system returns, the current to the fuser lamp is 0 (
Stopping the lining, performing a fuya cut, Figure 36, 3
The fuser cut will be explained using FIG. 7, FIG. 38, and FIG. 39. FIG. 36 is a diagram showing the configuration of 1-Ther, in which there are two fuser lamps 71 inside the heat roll 71O.
Contains 3.714. This lamp is a quartz glass tube filled with halogen gas, and is widely used as a fuser lamp. The paper is conveyed along a paper conveyance path 712 between a heat roll 710 and a pressure roll 711.

The finger 715 prevents the paper from being wrapped around the heat roll. In such a JMn, the user lamps 713 and 714 have different ratings, for example, the lamp 713 is 800VA and the lamp 714 is 500V.

The lamp 713 is normally turned on, but when the scanning system returns, the current supply is stopped for a predetermined period of time, and the lamp 714 is turned on only when the copying operation is stopped. In other words, during the copy operation, power must be supplied to the motor, etc., so the user normally uses 800 VA, but when the scanning system returns, more current must be supplied to the motor in order to quickly return to the home position. Therefore, the lamp 713 is also turned off at a predetermined time during this period, and the 800 VA of electric power is directed to the motor and the like. At this time, it's Fuyusa's turn to be an OVA. However, when the copying operation is not in progress and the motor is in a standby state, the motor etc. are in a stopped state and the lamp 714 is turned on in addition to the lamp 7i3, so that the 1300 VA is turned on and the motor is turned on. It is. Note that in FIG. 34, fusers A and B indicate that there are two fuser lamps.

The timing of the user cut is as shown in FIG.

This figure uses DADF and has a run length of 2, i.e.
This is a timing chart when the number of copies set is 2.In a single copier, a scan end signal is output when scanning ends and the return starts, but user cutting is performed based on that scan end signal. . First, the rising edge of the scan end signal that is output when the 1lFilth scan is completed (FIIIST 5C in the figure)
After a predetermined time A from AN END), the lamp 713 is cut for a predetermined time B. The dirt is a normal fuya cut. Therefore, even when the second scan ends, the scan end signal rises (LAST SCAM in the figure).
[! After a predetermined time A and a predetermined time B from NO), the document is cut for a predetermined time B, but at this time, the DADF exchanges the document, which requires power, so the IQ user cut is performed for the second time. The Fuesaka 2-to is at the end of the scan (after a predetermined 1.5 minutes C from the start of No. 3,
It is carried out only for a predetermined period of time. However, even if the power can be reduced, if the power is cut for a long period of time, the time to enter sagging will be earlier, so it is necessary to set these predetermined times.B.

When setting C and D, it is necessary to ensure that load leveling can be performed most efficiently in accordance with peak power. In the above description, necessary data such as the set number of copies can be obtained from the main CPU.

Figure 38 is a diagram showing the circuit configuration of the user subsystem.
20.721. Fuser lamp 717
．． 71B is connected between the power supply via SSR (Tsurifu Slat Relay) 722 and 723, IF172.
Connected to 4. 725 is a relay, and 726 is a fail-safe circuit. In this circuit, the fuser lamps 717 and 718 are respectively 713 (80
0VA), 714 (500VA), the 5SR 722 stops the current supply to the fuser lamp 717 in response to the signal shown in FIG. 37 output from the main CPU (not shown), and performs a fuser cut.

The 5SR 723 is closed by the main CPU only when the copying machine is in standby mode, and the fuser lamp 718 is turned on only at this time. thermostat 719
is placed near the heat roll 71O (Fig. 36).
ζ, when the ambient temperature of the heat roll 710 reaches a predetermined temperature, the fuser lamp 717.
71B is turned off to prevent the fuser roll from becoming abnormally high temperature and causing thermal deformation. No.-Mistav 2
0 is connected to the main CPU and monitors the user. The thermistor 721 is also provided to monitor the user temperature.
This is connected to failsafe circuit 726. Fail safe circuit 726 is thermistor 72! The temperature of the fuser is detected from the change in the resistance of the fuser, and when the fuser temperature reaches a predetermined value, it is determined that there is a failure and the relay 725 stops supplying current to the fuser lamp. In other words, the temperature of the user is double controlled by the thermostat 719 and thermistor 721. This means that standby is 1 and ν is 1 as shown in the two sides.
This is because the fuser is heated at 300 VA, so if the heating continues, the temperature of the fuser may reach an abnormal temperature. Also, the fail-safe circuit 726 is implemented by various sensors (not shown)? The status of the jj photocopier is monitored, and if any malfunction occurs, relay 725 and/or 5SR is activated.
722, 723 to drive the fuser lamp 717.7
The current supply to 18 is stopped.

FIG. 39 is a diagram showing the effect of the fuser cut in the case of FIG. 37. Note that in this figure, the time axis of the scanning part and the time axis of the return part are different, and the time axis of the third part is different.
The polarity of the scan end signal is reversed from that in Figure 7.

In Figure 39, the solid line shows the current waveform when no fuse cut is performed, and the broken line shows the current waveform when a fuse cut is performed, and the effect of the fuse cut is clear from these waveforms as well. . In particular, when user cutting is not performed, a current is required to exchange the original in addition to the T current of the scanning system return when exchanging the original, resulting in a current peak as shown by the solid line in the figure. It can be seen that the current is reduced by performing the fuser cut. The reason why the wavy line has two downward peaks at this time corresponds to the fact that the user cut twice when exchanging the original in FIG. 37.

■Motor subsystem The motor transmits its power through a belt or wire to drive the scanning system, photosensitive material belt, etc., so of course it is necessary to select an efficient motor, and also to select a motor with high efficiency. Lightening and optimizing the load by using ball bearings, reducing the load weight (for example, reducing the weight of the carriage (1st jt = inspection system)), etc.
Consider the wiring of the wires, and change the layout if necessary. In other words, if the belt and wire tension is weak, the motor power will not be transmitted effectively, and if it is too strong, the load will increase. The layout has a large Ig, so it is necessary to determine the idler installation position, belt length, etc. so that the motor will receive a throughput load. In this case, it is preferable to increase the diameter of each roll and reduce the number of rotations of each shaft, because the loss of electric power (m) due to the frictional resistance of the drive system is proportional to the number of rotations. A specific example of the layout of the timing belt is shown in Fig. 40. Fig. 40 is a rear side view of the main body of the copying machine. Two main motors 727 and 728 are used to enable point-to-point operation. The first main motor 727 is a large container tray (II
CF, manual feed tray (MS), paper transport roll (
TRA),! 11 (DIE V E), duplex out (DUP 0UT), and three feeders, and the second main motor 728 drives the photosensitive material belt (T'/R), cleaner, fuser, Inverter and duplex inverter (DUP)
IN).

By appropriately selecting the diameter of the boob and the gear ratio of the gear, each part is driven at a predetermined rotation speed. Note that the arrow in the figure indicates the rotation direction of the timing belt.

In this way, load fluctuations can be suppressed by effectively distributing the load between the two motors depending on the distance from the main motor, the size of the load, etc. In addition,
The reason for using the timing belt and pulley combination in Figure 40 is that although it is inferior to the chain and sprocket combination in terms of design freedom, the efficiency of the transmission is higher at 98% compared to 95% for the trailing one. This is because it is advantageous in terms of power consumption.

■Exposure Subsystem In the exposure subsystem, it is first necessary to improve the power factor of the exposure lamp itself and reduce power consumption. As a means for this purpose, the lighting circuit is phase advanced and the preheating lr'i circuit is phase delayed, thereby improving the overall power factor. According to this, the lighting frequency is l OOk H
When z, the power factor can be improved from about 70% in the past to about 79%, and the efficiency is also about 81%, so the product of power factor and efficiency is about 64%, It is clearly seen that this is an improvement compared to the conventional rate of about 60%.

Improving the reflector that covers the exposure lamp also leads to lower power consumption of the exposure lamp. This is because the higher the reflection efficiency of the reflector, the more the amount of light generated by the exposure lamp can be suppressed. .

For example, by employing an 8-increase reflection mirror whose reflector surface has been mirror-finished by electro-polishing t'3 or the like, the amount of reflected light can be increased by about 20%, which is effective as a measure against 1.5 kVA. Similarly, it is also effective to improve the transmittance of the lens used in the exposure subsystem. The transmittance of the lens is usually about 0.9. A coating is applied to this lens, and Mi! If the 3 ratio can be improved to, for example, 0.93, power consumption can be reduced by about 20 VA.

In other words, if the transmittance of the lens is old, the current required to obtain a predetermined amount of exposure increases, but the higher the transmittance, the smaller the amount of exposure is required, and therefore the current can be reduced.

Furthermore, in the exposure subsystem, stealing can be performed by lowering the gain of the exposure lamp when the scanning system returns. In other words, while the scanning system requires a large amount of power at the time of return, the exposure lamp does not need to be turned on in principle, so the scanning system can use a large amount of power. Yes, however, if the exposure lamp is turned off and then the next copy is made, the second copy will be delayed and fog will occur, so in reality the tube current is 1T11.
It is best to set it to the minimum value of the control range, an example of which is shown in Figure 41. ? The current IMm range is set to 0.
8A~3. Let OA be used, and the current value in this range will be expressed in 8 bits. During scanning, 8-bit data (41st
The controlled current value of L4c) is the optical CPU (
A predetermined current is supplied to the n-light lamp based on the output from the fourth L445), but when the scan end signal falls, fixed current value data of "00" is set, so the tube TL flow becomes 0.8A, which is the minimum value of the control range. When the return is completed and the next scan is started, the tube current is again controlled by the controlled current value data. At this time, the time T during which the fixed current is flowing needs to be set so that the stealing can be carried out efficiently.

The gain down jX element of the exposure lamp explained above is the fourth
In Figure 2, the solid line is the current waveform when the gain is reduced, and the broken line is the current waveform when the gain is not reduced. If the gain is not reduced, the current will be at its peak during return. This is because during return, a large current is used for the servo for speed control of the scanning system in addition to the current for the exposure lamp. On the other hand, it can be understood that by reducing the gain of the exposure lamp, the load on the servo of the scanning system can be offset to some extent. Note that the reason why the peak of the solid line and the peak of the dotted line are shifted is that since a large current is being handled, it takes some time for the gain-down effect to appear. Further, in FIG. 42, the time axis of the scanning portion and the time axis of the return portion are different.

In the above explanation, the fixed value is controlled f! It was set as the minimum value of four, but
This is because stealing is given priority, and it is clear that a larger value may be used if starting the next copy is taken into account. Also, the controlled current values before and after the fixed current value are 100% different. This is because the original may be replaced or the magnification may be changed during this time.

The above is an example in which the tube current of the exposure lamp is kept constant during return, but depending on the copy mode, more detailed control is possible)
For example, when making a reduction copy, it is necessary to increase the exposure amount, so if the tube current at the time of return is fixed, for example, O, I'lA, it will take time for the next copy to start up. Too much water may cause fogging. Therefore, as described below, the tube current at the time of return is changed according to the magnification. For example, let the value data R be the value indicated by the following 2.

When 50≦m<64 R-D-60 When 64≦m<72 R=D-(f154-11Xm
) When 72≦m<200, R-D-60 This allows stealing to launch copying more effectively than law.

■Solenoid subsystem By using a keep solenoid as a solenoid, power can be reduced.A normal solenoid must supply an open current to drive it, but a keep solenoid takes a certain amount of time to operate. Although it is necessary to apply current, once the solenoid subsystem is driven and latched, there is no need to apply current thereafter. Therefore, the solenoid subsystem can save power. Figure 43 shows an example in which the cleaner blade is made into a keep solenoid.The cleaner blade is provided to remove toner from the photosensitive material belt, and during normal copying operations, the cleaner blade is activated as shown in Figure 43a. The blade 730 is in contact with the sensitive material belt 731. To control the cleaner blade, a solenoid i'tllI control signal and a relay control in signal are required.
Solenoid controlled i21 signal like Ab from r1, to r□
, and relay control (No. 3 is set to r1 for a predetermined time T. Ti flow is supplied to the relay for this period of time Tl''F, and the relay is in the latched state. By doing this, the cleaner blade 730 moves as shown in the arrow. The relay can be moved in the direction of 733 and brought into contact with the sensitive material belt 731.
The time T for flowing the t flow should be about 100 m5ec. Note that 734 in the figure indicates the direction of rotation of the photosensitive material belt.
The above is the state during copying operation, but since not only toner but also paper powder or foreign matter adheres to the edge of the cleaner blade, when the copying operation is stopped, the edge of the cleaner blade
As shown in Figure 3C, attach the cleaner blade 730 to the sensitive material bell l.
-731° and remove foreign objects.

In this case, as shown in Fig. 43d, the solenoid gain signal is changed from "0" to "1" and the relay control (No. 3 is set to "1" for time T, and the 'fit current is applied to the relay for time T). This causes the cleaner blade 730 to move toward the arrow 73.
5 and away from the photosensitive material belt 731.

■Clutch subsystem Clutches are normally driven when current flows through them, so depending on where they are used, current must be constantly supplied, and power consumption must be kept below 1.5kVA. In this case, a latch like this was disadvantageous. In such a case, power can be saved by using a reverse clutch that is driven when the current is cut off.For example, it is effective to configure the belt clutch with a reverse clutch. The belt clutch transmits the drive of the main motor to the photosensitive material belt to rotate the photosensitive material belt.When the main motor is operating, the clutch is connected, and when the main motor is stopped, it is disconnected. made with the state. Therefore, it will be understood that current is supplied to the belt clutch only when the main motor, which requires a large current, is in a stopped state, so that it is effective as a measure against 1.5 kVA.

■LVPS and HVPS subsystems As mentioned above, y-vr>s is made up of three units, and each unit has one converter, and each unit converts AC to DC>21 ' has been made to do. For conversion from alternating current to direct current, one-way chopper type or PWM is used from the viewpoint of efficiency, and FET, which is a unipolar device, is used as the switching device.
is used, and 3morphous is used for the core of the transformer. This makes it possible to reduce switching ti losses, thereby improving the efficiency of the LVPS. In addition, the LVPS subsystem deletes the bleeder resistor, inserts a dummy resistor, and inserts a titanic coil.In the LVPS, a bleeder resistor is usually inserted in the input line as a countermeasure against rush current, but this is deleted because it immediately leads to power loss. do. However, in this case, it is necessary to use components or circuit configurations that will not be affected even if rush current flows.

L V P S flows current according to the size of the load, but
Since the magnitude of the load is extremely different when the copying machine is on standby and when it is operating, the load may become unbalanced and an abnormal phenomenon may occur.

To prevent this from happening, a dummy resistor is inserted when the load is small to keep the load balanced.

Of course, inserting a dummy resistor increases the power loss, but if an abnormal phenomenon occurs, there is no commercial value, and the dummy resistor is inserted only when the load is small, such as during standby, so from the perspective of 1.5kVA. There is no problem.

The power factor can be improved by inserting a chiller coil. Since LVPS has a capacity M load, it has a leading phase. Therefore, each time a power coil is inserted, the power factor can be improved, reactive power can be reduced, and input current can be reduced. In HVPS, it is better to use a distributed type for the same reason as LvPS. Transfer unit, bias unit, precharge, britransfer unit, etc.
It is possible to have a 4-unit configuration of other units. As for the conversion method from AC to DC, in order to improve the efficiency, similar to LV=PS, chip va single type or PWM
It is better to use FET, which is a unipolar device, as a switching device.According to this, in AC systems, the conventional rate of about 40% is reduced to about 50%, and in DC systems, it is about 60%. It was possible to improve each of them by about 75%, and the total VA was 20VA.
It is possible to reduce power consumption by a certain amount. Furthermore, loss can be reduced by making the primary winding of the transformer thicker.

■Other subsystems In the printed circuit board subsystem, C I' U, which was conventionally NMO3, will be changed to CMO3. This makes 1.5VA
It can be reduced to some extent. Furthermore, in the DADF subsystem, fJ, r:1 is reduced by changing the belt routing, such as adding a pulley or changing the belt length, as described in β) for the morph subsystem.

[Effects of the Invention] As is clear from the above description, according to the present invention, a design method is established that allows integrated management at the component level and the system level, so power consumption can be easily reduced through this procedure. It is possible to keep the force within the legal rated τ-force. In addition, since we grasp the whole system in a systematic way,
This makes it easy to deal with any problems that may occur or when parts are changed.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a solo chart of system design according to the present invention, FIG. 2 is a diagram showing a schematic configuration of the entire copying machine, and FIG.
The figure shows the configuration of the subsystem of the copying machine, and Figure 4 shows C.
Figure 5 is a diagram showing the hardware configuration of the PU, Figure 5 is a diagram showing the transfer data structure and transmission timing of serial communication, Figure 6 is a time chart showing mutual communication intervals in one communication cycle, Figure 7 is i'i main system Figure 8 is a diagram showing the configuration of the optical system, Figure 9 is a diagram showing the configuration of the lens drive system, Figure 10 is a diagram showing an overview of the optical system subsystem, and Figure 11 is a diagram showing the state division of the optical system. 12 is a diagram showing the scan cycle of the optical system, FIG. 12 is a diagram showing an outline of the belt 11, FIG. 13 is a diagram for explaining the panel portion υ1 on the photosensitive material belt, and FIG. 14 is a diagram showing the 1MM subsystem. Fig. 15 is a diagram showing the timing chart of the marking system control sequence, Fig. 16 is a diagram showing the U1 take-off state using the display, and Fig. 17 is a diagram showing the marking system control sequence. A diagram showing the appearance of the UI, FIG. 18 is a diagram showing the selection mode screen, FIG. 19 is a diagram showing both sides of the selection mode other than both sides, and FIG. 20 is a diagram showing the hardware configuration of the UI.
Figure 21 is a diagram showing the software configuration of 01, Figure 22 is a diagram showing an overview of the paper Vρ transport system, Figure 23 is a diagram showing the configuration of the Noni stage tray and middle tray, and Figure 24 is a diagram showing the duplex tray. Figure 25 shows the configuration of DADF.
26 is a diagram showing an example of the arrangement of photosensors in the DADF, FIG. 27 is a diagram explaining the action of the DADF, FIG. 28 is a diagram showing an example of the configuration of the sorter,
9 is a diagram explaining the drive system of the sorter, FIG. 30 is a diagram explaining the action of the sorter, FIG. 31 is a diagram showing system design items to be managed, and FIG. 32 is a diagram showing an example of a current waveform. Figure 33 is a diagram for explaining the sagging system, Figure 34
The figure shows the energy system diagram, Figure 35 shows the TL upstream torque characteristics, Figure 36 shows the fuser, Figure 37 shows the fuser cut timing, and Figure 38 shows the fuser subsystem. Figures 1 and 39 are diagrams showing the effect of fuser cut, Figure 40 is a diagram showing an example of a timing belt layout, Figure 41 is a diagram explaining exposure lamp gain reduction, and Figure 42. 43 is a diagram for explaining the effect of reducing the gain of the exposure lamp, and FIG. 43 is a diagram for explaining the control n of the cleaner blade. Applicant Fuji Xerox Co., Ltd. Agent Patent attorney Hideo Sugai (4 others) Figure 2 Figure 3 Figure 40 Figure 5 (a) (b) From Ul'14 (Rx Datamax) Fig. 7 Belt "One" Fig. 8 (b) Fig. 8 cc> Fig. 9 (a) Fig. 9 ! (a> 5CAN END Figure 11Cb
) cNTTERON' 1 OFF Figure 15 Figure 16 (Figure 19 (a) Figure 19 1)) Figure 19 (C) Figure 19 (d) Figure 23 Figure 24 @ Figure 26 @ Figure 27 ( Phrase 903 ” 616 2, / Fig. 28) ! Fig. 30 (C) (d) Fig. 33 Fig. 35 “ 1jJ 1゜ @ Fig. 36 LAST 5 CAN END LAST
5CANεND Figure 41 Vines Figure 43 (a) (C) (b) (d)

Claims (1)

[Scope of Claims] (1) When designing a power distribution system for a recording device consisting of a plurality of subsystems consisting of electrical parts and mechanical parts having various operation modes such as continuous operation or intermittent operation, the above-mentioned parts and 1. A method for designing a power distribution system for a recording device, characterized in that the design is performed systematically by creating an energy system diagram for each subsystem and setting target values for power distribution. (2) The arrangement of the members for transmitting the drive is designed based on the positional relationship of the load driven by the motor or the like so that the input power required to perform the drive is as small as possible. A power distribution system design method for a recording device. (3) Claim 1 characterized in that the power circuit is configured as a distributed system, and additional devices are attached to and detached from the power circuit depending on the mode of operation in order to further reduce input power as much as possible. A power distribution system design method for the described recording device. (4) The power supply circuit is a low voltage power supply circuit, and the additional device is a dummy resistor, and in order to stabilize the low voltage power supply circuit, the dummy resistor is connected to the low voltage power supply circuit during standby of the recording device. 2. The method for designing a power distribution system for a recording device according to claim 1, wherein the power distribution system is inserted into a power distribution system for a recording device. (5) When combining an inductive load such as a motor with a capacitive load such as a low-voltage power supply circuit, the power values of the components are set so that reactive power is as small as possible. A power distribution system design method for a recording device. (6) The method for designing a power distribution system for a recording apparatus according to claim 1, wherein timing smoothing and/or stealing is adopted as necessary to reduce input power. (7) When designing a power distribution system for a recording device, create an energy system diagram, set target values for power distribution for each component and/or subsystem, create a prototype, and measure the power consumption of the entire recording device. A power distribution system for a recording device, characterized in that when the power exceeds a predetermined power, the system is systematically designed by improving the power factor and efficiency and further performing power stealing as necessary. Design method. (8) The total power distribution above is 1.5 kVA or less when the input is 100 volts, and 3 kVA when the input is 200 volts.
．． Claims 1 and 2, characterized in that the voltage is 0 kVA or less.
8. A power distribution system design method for a recording device according to any one of 3, 4, 5, 6, and 7. (9) In a recording device consisting of a plurality of subsystems made up of electrical and mechanical components having various operating modes such as continuous operation or intermittent operation, the power distribution of the recording device is A recording device characterized in that it is systemically designed by setting target values based on an energy system diagram created for each system. (10) Depending on the positional relationship of the load driven by the motor, etc., the arrangement of the drive transmitting member, the bearing member, and the drive transmitting member is set so that the input power required to perform the drive is as small as possible. The recording device according to claim 9, characterized in that: (11) The recording apparatus according to claim 9, wherein the power supply circuit is configured as a distributed system, and additional devices are attached to and detached from the power supply circuit according to the mode of operation in order to further reduce input power as much as possible. (12) The power supply circuit is a low voltage power supply circuit, and the additional device is a dummy resistor, and in order to stabilize the low voltage power supply circuit, the dummy resistor is connected to the low voltage power supply circuit during standby of the recording device. 12. The recording device according to claim 11, wherein the recording device is inserted into the recording device. (13) When combining an inductive load such as a motor with a capacitive load such as a low-voltage power supply circuit, the power values of the components are set so that reactive power is as small as possible. recording device. (14) The recording apparatus according to claim 9, wherein timing smoothing and/or stealing is performed as necessary to reduce input power. (15) Claims 9 and 1 characterized in that the total power distribution is 1.5 kVA or less when the input is 100 volts, and 3.0 kVA or less when the input is 200 volts.
15. The recording device according to any one of 0, 11, 12, 13, and 14. (16) In a recording device having at least a scanning system and two fuser lamps with different ratings, the fuser lamp with the lower rating of the two fuser lamps is turned on only when in standby mode, and the fuser lamp with the higher rating is turned on only when in standby mode. A recording device characterized in that a fuser lamp is cut by a fuser when a scanning system returns. (17) The recording apparatus according to claim 16, wherein one more fuser cut is performed when exchanging the original. (18) A recording apparatus characterized in that the gain of the exposure lamp is lowered when the scanning system returns. (19) The recording apparatus according to claim 18, wherein the amount of decrease in the gain is changed in accordance with the recording magnification. (20) A recording device characterized in that the clutch that transmits the drive of the motor to the photosensitive material belt and the PIS clutch of the optical system are reverse-actuating clutches.