JPH0916035A - Image forming device - Google Patents

Abstract

PURPOSE: To provide an image forming device easily adjustable in various device settings and capable of easily states of sensors and operation of drivers from the outside without increasing the device cost. CONSTITUTION: This image forming device is provided with multiple unit control panels 301a-309a provided in the respective units 301-309 being control unit and controlling each corresponding unit, a communication line 158 being a communication medium with which multiplex communication means of respective unit control panels 301a-309a are connected to each other, and a parameter adjustment tool 310 which is housed in an independent housing as an external device and adjusts control operation parameters stored in the multiple unit control panels 301a-309a. Thus, the control operation parameters stored in the nonvolatile memories of respective unit control panels 301a-309a are adjusted by using the parameter adjustment tool 310.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus such as a copying machine and a printer. More specifically, the apparatus and each member in the apparatus are classified according to their function, and a plurality of units are set with each as a control unit. The present invention relates to a distributed control type image forming apparatus configured to perform multiplex communication between the plurality of units.

[0002]

2. Description of the Related Art In a conventional image forming apparatus such as a copying machine, all controls are integrated in a main control section, and the main control section directly drives respective units distributed in the machine. The centralized control method is generally used, and each unit is centrally controlled by one main board on which the main control unit is mounted.

An example of a distributed control type image forming apparatus related to the present invention is, for example, Japanese Patent Laid-Open No. 59-135598.
There is "a copying machine and a message transmission system for a copying machine" disclosed in Japanese Patent Publication No. 2003-242242. In this device, the wiring space can be reduced by transmitting and receiving control commands between the central processing unit and the remote unit (unit for each copying function) via one shared transmission line.

Further, in the "paper tray stock control system" of Japanese Patent Laid-Open No. 1-145669, the control unique to the intermediate tray is efficiently performed by the intermediate tray module by connecting the main controller and the tray controller by serial communication. This is done so that standardization of programs can be achieved.

Furthermore, as a technique related to the present invention, Japanese Patent Laid-Open No.
The "multiplex transmission device" of Japanese Patent Application Laid-Open No. 189366 is a multiplex transmission device having an actuator controlled based on information output from an information output means such as a sensor or a switch, and a communication unit for the information output means and the actuator is separately provided. , Wiring shortened, layout flexibility improved,
This is to avoid an increase in the number of failures.

[0006]

On the other hand, in an image forming apparatus such as a conventional copying machine, there are subtle variations among machines such as an image forming control mechanism and a sheet feeding / conveying control mechanism for each individual apparatus. Therefore, there is a difference in copy quality and transport quality (machine difference), a difference from the initial quality due to the change over time of each element even after it is put on the market, and the copy mode setting depending on the user's preference. Therefore, it is necessary to incorporate a parameter that can adjust various settings of the image forming apparatus, and use keys such as the operation unit to make adjustments as necessary.

However, the conventional distributed control type image forming apparatus has a configuration in which each unit is provided with a control function for controlling the inside of the unit, and it is not possible to collectively adjust various settings of the entire apparatus. Therefore, it is necessary to make an adjustment for each unit, which causes a problem that the adjustment becomes complicated.

Further, although it is possible to provide a dedicated control means for adjusting the parameters so that the control means can collectively make the adjustment, there is a problem that the apparatus cost is increased.

In a conventional distributed control type image forming apparatus, a large number of sensors and active components are arranged in the machine. However, each sensor and active component have a control function of a unit to which they belong. Since they are centralized and controlled, there is a problem that if the malfunction occurs due to some failure, it is not possible to easily check the status of the sensors and the operation of the driving parts from the outside.

The present invention has been made in view of the above, and it is an object of the present invention to easily adjust various settings of an apparatus without causing an increase in apparatus cost.

Further, the present invention has been made in view of the above, and it is an object of the present invention to make it possible to easily check the state of sensors and the operation of driving parts from the outside.

[0012]

In order to achieve the above object, an image forming apparatus according to a first aspect of the present invention is a plurality of image forming apparatuses in which the apparatus and each member in the machine are classified by function, and each is configured as one control unit. Unit, a CPU provided in each unit which is the control unit and responsible for control of the corresponding unit, a non-volatile memory for storing control operation parameters, and a multiplex communication means for multiplexing signals. A plurality of unit control means included therein, a communication medium for connecting between the multiple communication means of each unit control means, and an external device are housed in independent housings and stored in the plurality of unit control means. A parameter adjusting means for adjusting a control operation parameter, the unit controlling means using the parameter adjusting means. And adjusts the parameters for the control operation that is stored in non-volatile memory.

Further, in the image forming apparatus according to a second aspect, the parameter adjusting means adjusts the control operation parameter stored in the non-volatile memory of the unit control means via the communication medium. is there.

Further, in the image forming apparatus according to a third aspect of the present invention, the parameter adjusting means has multiplex communication means for performing multiplex communication through the communication medium, and an adjusting program storage means for storing a parameter adjusting program. And an operation display means for displaying and setting parameters.

Further, in the image forming apparatus according to the fourth aspect, the parameter adjusting means has a printer interface means.

According to a fifth aspect of the present invention, an image forming apparatus is classified into a plurality of units each of which is a control unit by classifying the apparatus and each member in the machine according to function, and each unit which is the control unit. A plurality of unit control means which are provided and each of which has at least a CPU responsible for controlling corresponding units and multiplex communication means for multiplexing signals, and a communication medium for connecting between the multiplex communication means of each unit control means And a component operation check means which is housed in an independent housing as an external device, and which accesses each component in the unit through the unit control means and checks the component operation. It is used to check the component operation of each unit.

Further, in the image forming apparatus according to a sixth aspect of the present invention, the component operation check means checks the state of sensors which are components arranged in each unit via the communication medium and the unit control means. To do.

In the image forming apparatus according to the seventh aspect, the component operation check means checks the state of the sensors associated with the operation of the image forming apparatus.

Further, in the image forming apparatus according to the eighth aspect, the component operation check means checks the state of the sensors when the sensors are manually operated.

Further, in the image forming apparatus according to a ninth aspect, when checking the states of the sensors when the sensors are manually operated using the component operation checking means, the unit control means Prohibits the copy operation of the corresponding unit.

An image forming apparatus according to a tenth aspect of the invention is
When the component operation check by the component operation check means is executed, each of the unit control means controls the active component in the corresponding unit to the operable state.

The image forming apparatus according to claim 11 is
Each of the unit control means, when the component operation check by the component operation check means is executed, controls the active component in the corresponding unit to an operable state, and
The copy operation of the corresponding unit is prohibited.

The image forming apparatus according to claim 12 is
The component operation check means, multiplex communication means for performing multiplex communication via the communication medium, an access program storage means for storing an access program for a designated component, and an operation display for designating a component to be accessed. And a configuration including means.

[0024]

The image forming apparatus of the present invention (claim 1) is provided in each unit which is a control unit by using the parameter adjusting means housed in an independent casing as an external device, and the corresponding unit is provided. CP responsible for controlling
U, the control operation parameters stored in the non-volatile memory of the unit control means having at least the non-volatile memory for storing the control operation parameters and the multiplex communication means for multiplexing the signals are adjusted. Therefore, the adjustment can be easily performed from the outside only when necessary.

An image forming apparatus of the present invention (claim 2)
The parameter adjusting means adjusts the control operation parameter stored in the non-volatile memory of the unit control means via the communication medium connecting the multiplex communication means of each unit control means. Therefore, the adjustment can be easily performed from the outside through the communication medium only when necessary.

An image forming apparatus of the present invention (claim 3)
Performs multiplex communication with each unit control means via the communication medium using the multiplex communication means of the parameter adjustment means, and based on the parameter adjustment program stored in the adjustment program storage means, the nonvolatile memory of the unit control means. The control operation parameter stored in the static memory. In addition, the operation display means displays and sets the parameters.

An image forming apparatus of the present invention (claim 4)
The parameter adjusting means has a printer interface means, and the control operation parameter can be output using an external printer via the printer interface means.

Further, the image forming apparatus of the present invention (claim 5).
Is provided in each unit, which is a control unit, by using a component operation check means housed in an independent housing as an external device, and is used to multiplex communication of a CPU and a signal which are responsible for control of the corresponding unit. The component operation of each unit of the plurality of unit control means having at least the multiplex communication means is checked. Therefore, it is possible to easily check the status of the sensors and the operation of the driving parts from the outside.

An image forming apparatus according to the present invention (claim 6).
The component operation check means checks the state of the sensors, which are the components arranged in each unit, via the communication medium and the unit control means. Therefore, it is possible to easily check the status of the sensors and the operation of the driving parts from the outside.

An image forming apparatus of the present invention (claim 7)
Can check the status of the sensors associated with the operation of the image forming apparatus with the component operation check means, so that the status of the sensors can be checked without touching the sensor terminals during the machine operation. ， It becomes easy to investigate the cause of troubles related to sensors.

Further, the image forming apparatus of the present invention (claim 8).
Since the component operation check means can check the state of the sensors when the sensors are manually operated, the operation of the sensor itself can be confirmed by manually operating the filler or the like.

Further, the image forming apparatus of the present invention (claim 9).
Is to check the state of the sensors when the sensors are manually operated using the component operation check means,
Each unit control means prohibits the copy operation of the corresponding unit. Therefore, it is possible to avoid the occurrence of accidental dubbing due to the copy operation while checking the sensors.

The image forming apparatus of the present invention (claim 1)
In 0), when the component operation check is performed by the component operation check means, each unit control means controls the active component in the corresponding unit to the operable state. Therefore, it is possible to check the operation of individual parts or individual units.

Further, the image forming apparatus of the present invention (claim 1)
In 1), when the component operation check is performed by the component operation check means, each unit control means controls the active component in the corresponding unit to an operable state, and
Prohibit the copy operation of the corresponding unit. Therefore, when checking the operation of a single component or a single unit, it is possible to avoid accidental dubbing due to the copy operation.

The image forming apparatus of the present invention (claim 1
In 2), the component operation check means performs multiplex communication via the communication medium using the multiplex communication means. Further, the component operation check is executed based on the component to be accessed designated by the operation display means and the access program stored in the access program storage means. Therefore, the component operation can be checked with a simple configuration.

[0036]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A copying machine will be described below as an example of an image forming apparatus of the present invention, and a detailed description will be given in the order of [First Embodiment] and [Second Embodiment] with reference to the drawings.

[Embodiment 1] FIG. 1 is an explanatory view showing the structure of a copying machine according to the first embodiment. Reference numeral 101 denotes a main body of the copying machine for creating a copy image, and 102 denotes an original reading document. Automatic document feeder (hereinafter referred to as A
DF), 103 is a bank paper feed unit that is a paper feed unit for recording paper, and 105 is a manual paper feed unit.

Here, the copying machine main body 101 includes a photosensitive drum 104 as an image carrier and a charging charger 111 for charging the surface of the photosensitive drum 104 to a predetermined potential.
A scanner 112 for reading an original image from an original placed at a predetermined position and forming an electrostatic latent image on the surface of the photosensitive drum 104; and developing the electrostatic latent image formed on the surface of the photosensitive drum 104 with toner. Developing unit 113 for forming a visible toner image, a transfer unit 115 for transferring the toner image formed on the surface of the photosensitive drum 104 to a recording sheet at a transfer position 114, and the photosensitive drum after the transfer process. Cleaning unit 116 for removing residual toner from the surface 104
An intermediate roller 133 that conveys the recording paper fed from the bank paper feed unit 103 to the transfer position 114, and an intermediate roller 1
33, an intermediate roller sensor 134 for detecting the recording paper that has reached 33, and a recording paper transfer position 11 at a predetermined timing.
4, a registration roller 135 that conveys the recording paper to the recording sheet 4, a registration sensor 136 that detects the recording paper that has reached the registration roller 135, a fixing unit 141 that fixes the toner image transferred onto the recording paper to the recording paper, and a fixing unit. A fixing unit entrance sensor 142 for detecting the recording paper that has reached 141
A branching claw 144 for switching the conveyance direction of the recording paper, a paper ejection roller 145 for ejecting the recording paper to the outside of the machine, and a paper ejection sensor 1 for detecting the recording paper reaching the paper ejection roller 145.
46, a paper ejection tray 147 for placing the recording paper ejected outside the machine by the paper ejection rollers 145, and a recording paper whose surface image formation is completed when images are formed on both sides of the recording paper. And a double-sided tray 150 for storing the.

In the first embodiment, the bank paper feeding unit 1
03 has four paper feed cassettes 103 _{-1 to} 103 _-4 , and each paper feed cassette 103 _{-1 to} 103 _-4 has four bank units (bank 1 unit 30).
7 _{-1 to} 307 _-4 ) and controls independently.

FIG. 2 is an explanatory view showing a schematic structure of the bank unit of the bank paper feeding unit 103. The pressure bottom plate 121 for mounting the recording paper 120 and the pressure bottom plate 121 for pushing the pressure bottom plate 121 upward. Pressure arm 122 and recording paper 120
To detect the recording paper 120 that has reached the paper feed roller 124, and a pair of paper feed rollers 124 that sends the recording paper 120 taken out by the call roller 123 to the conveyance path. A paper feed sensor 125,
It is composed of a turn roller 131 for transporting the recording paper 120 delivered by the paper feed roller 124 to a transport path common to each bank unit. Although not shown, each bank unit has a raising motor for raising the pressure arm 122, a calling solenoid for moving the calling roller 123, and a pair of paper feeding rollers 124 for contacting and separating from each other. It is equipped with a paper feed clutch and various sensors used for paper feed control.

FIG. 3 is a block diagram showing the configuration of the control system of the copying machine, which is the main part of the first embodiment. As shown in the figure, the devices and members inside the machine are classified according to function, and each is controlled by one control. A plurality of units 301 to 30 configured as a unit
9 and a plurality of unit control plates (unit control means of the present invention) provided in each unit 301 to 309 which is a control unit and having a unit control CPU 152 (see FIG. 4) which is in charge of controlling the corresponding units. 301a
-310a and a plurality of unit control plates 301a-309
Communication line 158 as a multiplex communication means arranged between a and
And a plurality of unit control plates 301a to 309a
However, multiplex communication of signals is performed via a communication line (twisted pair line) 158 which is a communication medium, and each unit control board 30
The corresponding units 301 to 309 are controlled while maintaining the consistency of control among the units 1a to 309a.

In addition, a plurality of unit control plates 301a to 301a, which are housed in independent housings as external devices, and which will be described later.
A parameter adjusting tool 310 is arranged as a parameter adjusting means for adjusting the control operation parameter stored in 309a. The parameter adjustment tool 310 is provided with a tool control plate 310a for communication control with the copying machine main body 101 and various parameter adjustment control for main body control, and a key input device 310b for parameter setting, A display device 310c for displaying set values and the like is connected, and further, it is connectable to the communication line 158 of the copying machine main body 101. The parameter adjustment tool 310 is provided with a printer interface 167 (see FIG. 5) described later, and as shown in the figure, is configured to be connectable to an external printer 350 other than the copying machine main body 101.

Although the communication line 158 is used as the communication medium in the first embodiment, the communication medium is not particularly limited to this, and radio waves or optical radio waves may be used.

In each of the units 301 to 309, the unit control plates 301a to 309a serve as sensors for detecting the state of the self unit and various actuators for operating the respective parts of the self unit, as described below. It is connected.

Here, the unit control plate 301a of the operation unit 301 is connected with a key input device for the operator to make various settings, a display device for notifying the operator of various messages, and the like.

Further, the unit control plate 302a of the charging unit 302 for controlling the charging unit 111 has a potential sensor for measuring the potential of the photosensitive drum 104, a high voltage power source for applying a voltage to the charging unit 111, and a charging unit for the charging unit 111. A charger cleaner for cleaning is connected.

The unit control plate 303a of the exposure / optical unit 303 for controlling the scanner 112 is
A position switch that detects the position of the optical system, various abnormality detection sensors, a scanner motor, and a halogen lamp are connected.

The unit control plate 304a of the developing unit 304 for controlling the developing unit 113 has a density sensor for measuring the toner density on the photosensitive drum 104 and an agent presence / absence sensor for detecting the toner amount in the developing unit 113. , Development motor, bias power supply, etc. are connected.

A high voltage power source or the like is connected to the unit control plate 305a of the transfer unit 305 which controls the transfer unit 115.

Further, the unit control plate 306a of the cleaning unit 306 for controlling the cleaning section 116.
Includes blades, solenoids, etc.

[0051] Furthermore, the unit control board 307a _-1 ～307A _-4 bank 1 units 307 _-1 to bank 4 units 307 _-4 constituting the bank sheet feeding unit 103, respectively lifting motor, call solenoid, the paper feed clutch , Rise sensor, paper feed sensor, paper presence sensor, paper size sensor, bank set sensor, etc. are connected.

The unit control plate 308a of the transport unit 308, which controls the transport of the recording paper 120, has a paper feed motor, a resist clutch, an intermediate roller sensor,
A resist sensor or the like is connected.

Further, the unit control plate 30 of the fixing / sheet discharging unit 309 for controlling the fixing section 141 and the sheet discharging section.
9a includes a fixing motor, a fixing heater, a branch solenoid,
A temperature sensor, a fixing entrance sensor, a paper discharge sensor, etc. are connected.

Note that, in order to simplify the explanation, in FIG. 3, nine units 301 to 309 are shown as a plurality of units. However, in addition to this, for example, a manual feed unit for controlling the manual feed unit 105 is used. There are a sheet feeding unit, a double-sided sheet feeding unit, and the like, and the configuration of the unit is not particularly limited to this.

FIG. 4 shows each unit control plate 3 shown in FIG.
It is a block diagram which shows the structure of 01a-309a. Since the unit control plates 301a to 309a have the same configuration, the unit control plate 301a of the operation unit 301 will be described here as an example.

The unit control board 301a transmits / receives data to / from the communication CPU 151 for controlling the communication with the other unit control boards 302a to 309a, the unit control CPU 152 for controlling the operation of its own unit, and the communication line 158. Communication port 153, a ROM 154 in which the control sequence program and communication control program of the own unit are stored, and a nonvolatile RAM 155 that stores control data such as control operation parameters.
And an input / output port 156 for interfacing with actuators, sensors, and the like, and an address bus, a data bus, and a control bus, and a bus 157 for connecting the above-mentioned units.

In the above configuration, the information input from the external unit to the communication port 153 via the communication line 158 is fetched according to the protocol of the communication CPU 151 and stored in the non-volatile RAM 155. Based on the control sequence program stored in the ROM 154, the unit control CPU 152 receives information input via the communication port 153 or the input / output port 1
The sensor information and the like from 56 are checked, and the actuators (motor, solenoid, etc.) necessary for the unit operation are controlled at the designated timing. In addition, in Example 1,
Two of the communication CPU 151 and the unit control CPU 152
2 CPUs are used, but the unit control CPU 152
Therefore, the number of CPUs may be one, which also serves as communication control.

In FIG. 4, an external unit (here,
From the other unit control boards 302a to 309a) to the communication line 1
The information input to the communication port 153 via 58 is
It is fetched according to the protocol of the communication CPU 151 and stored in the non-volatile RAM 155. The unit control CPU 152 checks the external information stored in the nonvolatile RAM 155 or the sensor information from the input / output port 156 according to the program contents stored in the ROM 154, and is designated by the program stored in the ROM 154. The actuators (motors, solenoids, etc.) necessary for unit operation are controlled at different timings.

FIG. 5 is a block diagram showing the configuration of the tool control plate 310a of the parameter adjustment tool 310 shown in FIG. 3, in which the communication CPU 161 for controlling the communication with the unit control plates 301a to 309a and its own unit. Unit control CPU 162 for controlling the operation of the communication port, and communication port 16 for transmitting / receiving data to / from the communication line 158.
3, a ROM 164 in which a control sequence program of its own unit is stored, a RAM 165 for storing control operation parameters and the like, an input / output port 166 for interfacing with the key input device 310b and the display device 310c, and FIG. External printer 3 as shown in 3
Printer interface 167 for connecting to 50
And a connector 169 for connecting the communication line 158 on the communication port 163 side to the communication line 158 on the copying machine main body 101 side.

FIG. 6 shows a virtual image on the photosensitive drum 104 and a paper feeding position for determining the timing so that the image formed on the surface of the photosensitive drum 104 is transferred to the specified position of the recording paper 120. It is explanatory drawing which shows a relationship.

Here, L1, L2 and T used in FIG.
The respective symbols of y, Tz, T1, T2, T3, Tx and Tr will be defined.

L1: Conveyance distance from the leading edge of the recording paper 120 to the registration roller 135 L2: Conveyance distance from the registration roller 135 to the transfer position 114 Ty: Exposure lamp rising time Tz: Time from the exposure slit entrance to the transfer position 114 ( = Ly / Vd) where Ly is the distance from the entrance of the exposure slit to the transfer position, Vd is the linear velocity of the drum, T1: the time from the feeding of the paper to the registration roller 135 (= L1 / Vf), where Vf is the paper conveying speed. T2: Time from the registration roller 135 to the transfer position 114 (= L2 / Vf) where Vf is the sheet conveyance speed T3: Stop time at the registration unit Tx: T1 + T2 + T3- (Ty + Tz) Tr: Position of the registration roller 135 Stopping time of recording paper 120 (= Tz-T2)

First, the copy operation control in the copying machine main body 101 is performed by two sequence processes of image forming control and paper feed conveyance control. Image formation control is performed on the photosensitive drum 1
04 is a series of timing control for forming an electrostatic latent image on the image forming apparatus 04, visualizing it at the developing section, transferring it to the recording paper 120 at the transfer section, and cleaning the surface of the photosensitive drum 104 at the cleaning section. Each of 301a to 309a has a control timer that starts at the operation timing of the member of the unit immediately before the own unit (the first member is the front end of the virtual image), and the control timer performs timing control.

On the other hand, the paper feeding / conveying control is performed by the photosensitive drum 10.
4 determines the paper feed timing for transferring the image on the recording medium 4 and the start timing of the virtual image, and the recording paper 120.
It has a control timer based on the sensor operation of its own unit or front and rear units, and the timing control is performed by the control timer.

Therefore, in order to make the visible image formed on the photosensitive drum 104 and the recording sheet 120 coincide with each other at the transfer portion, a predetermined time Tx (= T1 + T2 +
The virtual image front end is started after T3- (Ty + Tz)) has elapsed.

Further, the recording paper 120 fed from the paper feeding unit
Is stopped in a state where it hits the registration roller 135 and waits for slack in a loop shape.
The sheet is re-fed at the timing when the leading edge of the image on No. 4 reaches a predetermined position, that is, after Tr (= Tz-T2) time from the start of exposure.

In the above-described operation, if the amount of slack in the registration roller portion is too large, the paper will be broken, and if it is too small, the load for re-feeding will be large and the conveyance will be delayed. Therefore, the copying machine main body 101 has a function of adjusting the amount of slack.

Further, the distance from the exposure slit to the transfer portion, the distance from the registration roller 135 to the transfer portion, the rise time of the registration clutch, the sheet stop position at the registration roller portion, and the like, differences among individual copying machines or changes over time. Since the transfer deviation is caused by the variation due to the above, it has an adjusting function for the correction.

With the above-mentioned configuration, operation unit processing, copy operation control in the copying machine of the first embodiment,
The control operation parameter adjustment processing stored in each unit control plate, the parameter adjustment processing, and the effect of the first embodiment will be described in this order in detail with reference to the flowcharts of FIGS. 7 to 14.

Operation Unit Processing When the power is turned on, each of the units 301 to 309 transfers the status information within itself, that is, the detection information of various sensors, to the operation unit 301 or a related unit via the communication line 158. ， Performs preparatory operation for copying.

Unit control plate 30 of operation unit 301
As shown in the flowchart of the operation unit processing of FIG. 7, the la 1 first performs initialization processing of the operation unit 301 (S701), inputs information from each unit, and checks (S702). Next, it is determined whether or not the "copying" flag is ON (S703), and "copying" is performed.
If the flag is not ON, the waiting process routine is executed (S704), and if the "copying" flag is ON, the copying process routine is executed (S705), and step S702 and thereafter are repeated.

Next, referring to FIG. 8, step S in FIG.
The standby processing routine indicated by 704 will be described.
When the unit control board 301a of the operation unit 301 confirms that no unit is in the process of setting up and there is no abnormality based on the information from each unit input in step S702 (S801, S80).
2), "Copyable" is displayed (S803). On the other hand, if any of the units is being set up in step S801, the setup status is displayed on the operation panel (not shown) such as "heater warm up" (S804), and whether there is an abnormality is detected. It is determined whether or not (S805).

If it is determined in step S802 or S805 that there is an abnormality, the content of the abnormality is displayed on the operation panel and "copy not possible" is displayed (S80).
6, S807).

Subsequently, the key input from the operation panel for mode setting is checked (S808). If there is a key input (S809), the setting mode in which the key input has been made is displayed (S810). An instruction is transmitted to cause the unit corresponding to the mode to perform the setting for the mode (S811). It should be noted that each unit performs an operation for preparing a copy based on the transmitted instruction.

For example, when the copy magnification is designated as 71%, a display to that effect is displayed, and at the same time, the exposure / optical unit 303 is instructed to set the variable magnification of 71%. Upon receiving, the variable power lens is moved to a predetermined position and an ON signal during setup is transmitted to the operation panel.

When there is a print key input in the above-described copy-enabled (print-enabled) state (S812) (S81).
3), "copying" and "copy start" flags are set (ON) (S814, S815), and the process returns to step S702 in FIG. On the other hand, if the copy is not permitted (print is permitted) in step S812, the process directly returns to step S702 in FIG.

Next, referring to FIG. 9, step S7 of FIG.
The copying process routine shown by 05 will be described.
When the "copy start" flag is ON (S901), the unit control plate 301a of the operation unit 301,
A "copy start" signal is sent to each related unit (S902), and the "copy start" flag is reset (OFF) (S903). Next, it is determined whether or not there is an abnormal input (S904), and if there is an abnormal input, an abnormal display process is performed (S905), and the abnormality is an A abnormality,
That is, it is determined whether or not the copy operation has to be stopped (S906), and in the case of the A error, the "copying" flag is reset (OFF) (S90).
9), and returns to step S702 in FIG.

On the other hand, if there is no abnormal input in step S904, it is checked whether or not each unit can perform control operation (hereinafter referred to as repeat timing) (S907). Returning to step S702, if it is the repeat timing,
It is checked whether or not there is a next copy (S908), and if there is a next copy, the "copy start" flag is set (ON) to send the "copy start" signal again. It returns to step S702. If there is no next copy, the "copying" flag is reset (OFF) (S909), and step S7 in FIG.
Return to 02.

Adjustment Processing of Control Operation Parameters Stored in Each Unit Control Plate Next, the adjustment processing of the control operation parameters stored in the nonvolatile RAM 155 of each unit control board 301a to 309a will be described. Note that, here, for simplification of description, a manual sheet feeding process, which is one of the control processes of the transport unit 308, will be described as an example, but the control operation parameters of the nonvolatile RAM 155 of another unit control plate are adjusted. The processing is basically the same.

10 and 11 show the transport unit 30.
8 is a flowchart of a manual sheet feeding process that is one of the control processes of No. 8. Unit control plate 30 of the transport unit 308
8a first determines whether or not the “adjustment data” signal is received from the parameter adjustment tool 310 (S100).
1) If there is a "adjustment data" signal received, step S
If no “adjustment data” signal has been received, the process proceeds to step S1006. Although the details will be described later, the “adjustment data” signal is transmitted from the parameter adjustment tool 310 to each of the unit control plates 301a to 309a when the control operation parameter is adjusted.

In step S1002, it is determined whether the received data (received "adjustment data" signal) is registration data, and if it is registration data, step S1.
In 003, the received data is registered as a registration timer value (TMr)
And is stored in the nonvolatile RAM 155. As a result, the registration timer value (TMr), which is one of the control operation parameters, is adjusted.

If it is not registration data, step S1
In 004, it is determined whether the received data is slack data, and if it is slack data, in step S1005,
Set the received data as the paper feed timer value (TMf),
The data is stored in the non-volatile RAM 155, and the process ends. As a result, the paper feed timer value (TMf), which is one of the control operation parameters, is adjusted. If the data is not the slack data, the process ends as it is.

On the other hand, if no "adjustment data" signal is received in step S1001, then "copy start" is performed.
It is determined whether or not a signal is received (S1006), and if a "copy start" signal is received, an image forming start timer (TMx) and a jam control timer (TMj).
Is started (S1007, S1008),
By turning on the read solenoid and the paper feed clutch, the call roller and the paper feed roller of the manual paper feed unit 105 are driven to feed the recording paper 120 (S100).
9, S1010).

In step S1011 it is determined whether the image forming start timer (TMx) has timed up. Here, if the time is not up, step S
If the time is up, the image forming start timer (TMx) is turned off (S1012), and an image forming start signal is transmitted to the image forming unit (S10).
13). When the image formation start unit receives the image formation start signal, each unit for charging, exposing, developing, etc. is sequentially operated to form an original image on the photosensitive drum 104.

In step S1014, it is determined whether the jam control timer (TMj) is operating. Here, if it is not in operation, the process proceeds to step S1018,
If it is in operation, it is determined whether or not the registration sensor is ON (S1015). If the registration sensor is ON, the jam control timer (TMj) is turned OFF (S1016),
Start the paper feed timer (TMf) (S101
7).

In step S1018, it is determined whether or not the jam control timer (TMj) has timed up. Here, if the time is up, step S10
Steps from 19 to step S1022 are sent to each unit related to the fact that it is a paper feed jam, the calling solenoid and the paper feed clutch are turned off, and all timers are turned on.
After FF, the process is completed. Each related unit receives the "paper feed jam" signal and stops the drive due to danger.

On the other hand, if the time has not expired, the flow advances to step S1023 to determine whether the paper feed timer (TMf) has timed up. Here, if the time is not up, the process proceeds to step S1101, and if the time is up, steps S1024 to S10.
26, the calling solenoid and the paper feed clutch are turned off, the paper feed timer (TMf) is turned off, and the flow advances to step S1101.

By the processing up to this point, the fed recording paper 120 turns on the registration sensor provided in front of the registration rollers, and turns off the jam control timer (TMj) according to the signal to feed the paper. Timer (TM
(f) is started, and when the timer expires, the calling solenoid and the paper feed clutch are turned off. Therefore, the recording paper 120 stops in a state where it hits the registration roller and forms a loop-shaped slack.

In step S1101, it is determined whether or not the "exposure position timing" signal is received from the exposure / optical unit 303, and if it is received, the registration timer (TMr) is started (S1102), and after a predetermined time elapses. , That is, when TMr times out (S110
3) The registration clutch is turned on, the registration roller 135 is driven, and the recording paper 120 is re-fed (S11).
04).

Subsequently, it is checked whether or not there is an abnormal input (S1105), and if there is no abnormal input, the processing is terminated as it is. If there is an abnormal input, the calling solenoid and the paper feed clutch are turned off, and all The timer is turned off (S1106 to S1108), and the process ends.

Parameter Adjusting Process Next, a control operation parameter adjusting process using the parameter adjusting tool 310 will be described. When the control operation parameters are adjusted, as shown in FIG. 3, the parameter adjustment tool 31 is connected to the communication line 158 of the copying machine main body 101.
0 is connected and the power of the parameter adjustment tool 310 is turned on.
I do.

The tool control plate 310a of the parameter adjusting tool 310 turns on the power of the parameter adjusting tool 310.
Then, the flowchart of the parameter adjustment processing shown in FIG. 12 is executed. First, the parameter adjustment tool 310
Is initialized (S1201), and the display device 310c of the parameter adjustment tool 310 displays a selection of which of the parameter setting mode and the parameter reference mode is to be executed (S1202). In this state, the user can display the display screen of the display device 310c (for example, "setting mode:
1, the reference mode: 2 ”), based on the key input device 31
Key input is performed via 0b.

Subsequently, steps S1203 and S1204.
Then, it is determined whether or not the setting key (here, 1 or 2) is turned on, and if the selection number is "1" based on the selection number of the setting key that is turned on, the parameter setting processing routine of step S1205 Is executed and the selection number is "1"
If not (that is, if "2"), step S
The parameter display processing routine 1206 is executed.

FIG. 13 shows a flowchart of the parameter setting processing routine of step S1205 of FIG.
The tool control plate 310a executes a parameter setting processing routine when the setting mode is selected. First, the unit classification display screen is displayed on the display device 310c, and the unit item to be adjusted is selected by the selection key (S1301).
Specifically, for example, "paper feed adjustment: 1, charge adjustment: 2,
Exposure adjustment: 3, ......... "is displayed for each unit item.

Next, the selection key corresponding to the selection number of the unit item displayed on the unit classification display screen is turned on.
Then, it is determined whether or not the selection No. selected by the selection key is “1” (S1302) (S130).
3), if “1”, steps S1304 to S131
The process proceeds to the paper feed adjustment mode indicated by 2, and if not "1", the process proceeds to step S1313.

In step S1304, the display device 310
A parameter setting menu for the paper feed adjustment mode is displayed on the display screen c. Specifically, the selection number is displayed for each control operation parameter to be adjusted, such as "slack amount adjustment: 1, resist amount adjustment: 2".

Next, when the selection key corresponding to the selection number of the control operation parameter displayed in the parameter setting menu of the paper feed adjustment mode is turned on (S130).
5), it is determined whether or not the selection No. selected by the selection key is "1" (S1306).
The process proceeds to step S1307, and if it is not "1", the process proceeds to step S1310.

In step S1307, a parameter setting menu for adjusting the amount of slack is displayed. Specifically, for each adjustment amount, “+20 mm: 1, +10 mm: 2, +5 m
The selection number is displayed as in "m: 3, 0 mm: 4, -5 mm: 5, ...". Subsequently, when the selection key is turned on in step S1308, the adjustment amount of the corresponding selection number is transmitted to the related unit as sag amount selection data in step S1309, and the process ends.

In step S1310, a parameter setting menu for resist amount adjustment is displayed. In particular,
For each adjustment amount, "+6 mm: 1, +4 mm: 2, +2 mm:
3, + 1mm: 4,0mm: 5, -1mm: 6, ... "
The selected number is displayed like. Then, step S13
When the selection key is turned on in step 11, step S1312
Then, the adjustment amount of the corresponding selection number is transmitted to the related unit as the resist amount selection data, and the process ends.

On the other hand, in step S1303, "1"
If not, the process proceeds to step S1313, it is determined whether the selection No. selected by the selection key is "2", and if it is "2", the process proceeds to the exposure adjustment mode and "2".
If not, go to another mode. It should be noted that the processing in modes other than the paper feed adjustment mode is basically performed in step S1.
Since this is the same as the paper feed adjustment mode shown in 304 to S1312, the following steps are omitted here for the sake of simplicity.

FIG. 14 shows a flowchart of the parameter display processing routine of step S1206 of FIG.
The tool control plate 310a executes a parameter display processing routine when the reference mode is selected. First, a unit classification display screen is displayed on the display device 310c, and the unit item to be adjusted is selected by the selection key (S1401).
Specifically, for example, "paper feeding-related: 1, image adjustment: 2,
Display the selection number for each unit item, such as "Optics related: 3, ..., End: 9".

Then, the selection key corresponding to the selection number of the unit item displayed on the unit classification display screen is turned on.
Then, it is determined whether the selection No. selected by the selection key is "1" (S1402) (S140).
3), if "1", steps S1404 to S140
If the processing is not "1", the process proceeds to step S1411.

In step S1404, the transport unit 3
A parameter (control operation parameter) reference request is transmitted to 08. Here, the unit control plate 308a of the transport unit 308 transmits the value of the control operation parameter stored in the nonvolatile RAM 155 in the unit control plate 308a to the parameter adjustment tool 310 based on the parameter reference request.

The tool control plate 310a is used for the transport unit 3
When the parameter is received from S.08 (S1405), the contents of the received parameter are displayed in a list format on the display screen of the display device 310c (S1406), and the step S1407 is performed.
Proceed to. Specifically, "slack amount: 5, resist amount:
Parameter No. for paper feed / conveyance adjustment is displayed as "1, Jam margin: 2, ...".

On the other hand, in step S1403, "1"
If not, the process proceeds to step S1411, and it is determined whether or not the selection No. selected by the selection key is "2". If "2", steps S1412 to S141.
The process proceeds to image forming-related processing indicated by 4, and if not "2", the process proceeds to step S1415.

In step S1412, a parameter (control operation parameter) reference request is transmitted to the image forming unit (charging unit 302, developing unit 304, transfer unit 305, etc.). Here, the unit control board of each image formation related unit transmits the value of the control operation parameter stored in the non-volatile RAM 155 in the own unit control board to the parameter adjustment tool 310 based on the parameter reference request. .

When the tool control board 310a receives the parameters from the image forming unit (S1413), the contents of the received parameters are displayed in a list form on the display screen of the display device 310c (S1414), and the process proceeds to step S1407. Specifically, "white spot amount: 1, toner supply amount:
4, the amount of bias: 2, ...

On the other hand, in step S1405, it is determined whether or not the selection No. selected by the selection key is "3". If "3", the process proceeds to optical-related processing and "3".
If not, proceed to the next step (not shown). After the next step, basically step S14
03-S1406 and steps S1411-S141
Since it is the same as that of step 4, the following steps are omitted here for the sake of simplicity. Finally, step S
In 1499, the selection N selected by the selection key
It is determined whether or not o is "9". If it is "9", the process is terminated, and if it is not "9", the process returns to step S1402.

In step S1407, the display device 310
The print selection screen is displayed on c and the presence or absence of print selection is selected by the selection key. When the selection key corresponding to the selection number on the print selection screen is turned on (S1408),
It is determined whether or not the selection No. selected by the selection key is "1" (S1409). If it is "1", certain contents displayed on the display device 310c are output to the printer 350 (S1410), and " If it is not "1", the process is terminated.

Effects of the First Embodiment As described above, according to the first embodiment, the parameter adjusting tool 310 housed in an independent housing as an external device.
Is used to adjust the control operation parameters stored in the non-volatile RAM 155 in each unit control plate 301a to 309a, so that the adjustment can be easily performed from the outside only when necessary. It is possible to reduce costs without imposing a burden on the main body 101 for adjustment. Generally, in a copying machine or the like, adjustment of copy quality, conveyance quality, etc. is performed only in a specific case such as when the machine is completed, when the machine is delivered, at regular maintenance, when repairing a failure, and the like. Therefore, the machine can be easily adjusted from the outside only in such a case, so that the cost of the copying machine main body 101 can be reduced without hindering the operation.

From the parameter adjustment tool 310, each unit control board 301 via the communication line 158 (communication medium).
Since the control operation parameters stored in the nonvolatile RAMs 155a to 309a can be adjusted, workability and operability are good.

Display device 3 of parameter adjustment tool 310
Since the control operation parameters of the unit control plates 301a to 309a are referred to and displayed on the screen 10c, the setting state of the control operation parameters can be easily confirmed.

Since the printer interface 167 (printer interface means) is arranged in the parameter adjusting tool 310 and the control operation parameters can be output using the external printer 350, the set contents of the control operation parameters are listed. It is possible to improve workability. Further, since it is not necessary to provide the copier body 101 with a printer interface, the copier body 10
There is no special burden on the 1st side.

[Embodiment 2] Since Embodiment 2 has basically the same configuration as that of Embodiment 1, only different portions will be described here.

FIG. 15 is a block diagram showing the configuration of the control system of the copying machine, which is the main part of the second embodiment. As shown in the figure, it is housed in an independent housing as an external device, and each unit control plate. A component operation check tool 1501 as a component operation check means for accessing each component in the unit via 301a to 309a and checking the component operation is provided, and the component operation of each unit 301 to 309 is performed using the component operation check tool 1501. Is to check.

The component operation check tool 1501 is provided with a tool control plate 1501a for checking the state of various sensors and the operation of various driving components arranged in each of the units 301 to 309 of the copying machine main body 101. Further, the key input device 1501b for designating the check parts and the display device 1501c for displaying the check method and the check result are connected, and can be connected to the communication line 158 of the copying machine main body 101. It is a composition.

FIG. 16 is a block diagram showing the configuration of each unit control plate 301a to 309a shown in FIG.
Since the unit control plates 301a to 309a have the same configuration, only the unit control plate 301a will be described here.

Further, the unit control plate 301a is basically the same as the configuration of the first embodiment shown in FIG. 3, and the common reference numerals indicate the same configurations, so that the description thereof will be omitted. However, the second embodiment shows an example in which the RAM 1601 is used instead of the nonvolatile RAM 155 of the first embodiment.

In the above configuration, the information input from the external unit to the communication port 153 via the communication line 158 is fetched according to the protocol of the communication CPU 151 and stored in the RAM 1601. The unit control CPU 152, based on the control sequence program stored in the ROM 154, uses the communication port 1
Information input via 53 or sensor information from the input / output port 156 is checked, and actuators (motors, solenoids, etc.) required for unit operation are controlled at designated timings.

In FIG. 16, the information input from the external unit (here, the other unit control plates 302a to 309a) to the communication port 153 via the communication line 158 is taken in according to the protocol of the communication CPU 151, It is stored in the RAM 1601. C for unit control
The PU 152 checks the external information stored in the RAM 1601 or the sensor information from the input / output port 156 according to the program contents stored in the ROM 154, and operates the unit at the timing specified by the program stored in the ROM 154. Controls actuators (motors, solenoids, etc.) required for

FIG. 17 is a block diagram showing the configuration of the tool control plate 1501a of the component operation check tool 1501 shown in FIG. 15, and unit control plates 301a to 309.
Communication CPU 1701 for controlling communication with a
And a unit control CPU that controls the operation of its own unit
1702, a communication port 1703 for transmitting and receiving data to and from the communication line 158, a ROM 1704 in which a control sequence program of the own unit is stored, a RAM 1705 for storing control operation parameters and the like, a key input device 1501b and a display An input / output port 1706 for interfacing with the device 1501c, a bus 1707 for connecting the above units, and a communication port 17
The communication line 158 on the 03 side is the communication line 1 on the main body 101 side of the copying machine.
Connector 1708 for connecting to 58.

Regarding the copy operation control in the copying machine of the second embodiment with the above configuration, an example of the control operation of the operation unit, the control operation of the part operation check process in each unit, the control of the part operation check process of the part operation check tool The operation, the specific example of the operation check, and the effect of the second embodiment will be described in detail with reference to the flowcharts of FIGS.

Control Operation of Operation Unit When the power is turned on, each unit 301 to 309 transfers the status information in its own unit, that is, the detection information of various sensors to the operation unit 301 or a related unit via the communication line 158. At the same time, a preparatory operation for copying is performed.

Unit control plate 30 of operation unit 301
As shown in the flowchart of the operation unit processing of FIG. 7, the la 1 first performs initialization processing of the operation unit 301 (S701), inputs information from each unit, and checks (S702). Next, it is determined whether or not the "copying" flag is ON (S703), and "copying" is performed.
If the flag is not ON, the waiting process routine is executed (S704), and if the "copying" flag is ON, the copying process routine is executed (S705), and step S702 and thereafter are repeated.

Next, with reference to FIG. 18, the standby processing routine (the standby processing routine of the second embodiment) shown in step S704 of FIG. 7 will be described. The copying process routine is the same as that in the first embodiment, and the description thereof is omitted.

Unit control plate 30 of operation unit 301
1a, based on the information from each unit input in step S702, if it is confirmed that none of the units is being set up and there is no abnormality (S18
01, S1802), the tool signal input processing routine is executed based on the information from the component operation check tool 1501 to be described later, and the external check mode is set (S).
1803).

Now, the operation of the tool signal input processing routine will be described with reference to FIG. First, it is determined whether or not a tool start signal has been received from the component operation check tool 1501 (S1901), and if it has been received, it is determined whether or not the content of the tool start signal is the single item check mode (S1902). If it is the single item check mode, the external check mode 1 is set (S1903), and if it is not the single item check mode, the external check mode 2 is set (S1904).

On the other hand, if the tool start signal has not been received, it is judged whether or not the tool end signal has been received from the component operation check tool 1501 (S1905). If it has received, the external check mode 1 and external check are performed. Reset mode 2 (S1906, S190
7)). If it has not been received, the process ends.

Returning to FIG. 18 again, step S180
In step 4, it is determined whether or not the external check mode 1 is set, and if the external check mode 1 is set, the operation panel (not shown) of the operation unit indicates that the single check mode is set. (S1806),
In step S1810, "copy prohibited" is displayed. On the other hand, if the external check mode 1 is not set, "copyable" is displayed in step S1805.

On the other hand, if any of the units is being set up in step S1801,
The setup status is displayed on the operation panel (not shown) like "heater warm up" (S1807), and it is determined whether or not there is an abnormality (S1808).

In addition, step S1802 or S180
If it is determined to be abnormal in step 8, the content of the abnormality is displayed on the operation panel and "copy not possible" is displayed (S1).
809, S1810).

Subsequently, the key input from the operation panel for mode setting is checked (S1811). If there is a key input (S1812), the setting mode in which the key input has been made is displayed (S1813). An instruction is transmitted to cause the unit corresponding to the mode to perform the setting for the mode (S1814). It should be noted that each unit performs an operation for preparing a copy based on the transmitted instruction.

For example, when the copy magnification is designated as 71%, a display to that effect is displayed, and at the same time, the exposure / optical unit 303 is instructed to set the magnification of 71%. Upon receiving, the variable power lens is moved to a predetermined position and an ON signal during setup is transmitted to the operation panel.

In the copy-enabled (print-enabled) state (S1815), if there is a print key input (S18).
16), "copying" and "copy start" flags are set (ON) (S1817, S1818), and the process returns to step S702 in FIG. On the other hand, step S181
If copying is not possible (printing is possible) in step 5, the process directly returns to step S702 in FIG.

Example of Control Operation of Parts Operation Check Process in Each Unit As an example of parts operation check process in each unit, here, a bank unit (bank 1 unit 30
_7-1-bank 4 units banks set processing 307 _-4) it will be described as an example. Bank 1 unit 307 _-1
The operations of the bank 4 unit 307 _-4 are the same, and only the operation of the bank 1 unit 307 _-1 will be described here.

[0136] unit control plate 307a _-1 bank 1 unit 307 _-1, as shown in the flowchart of FIG. 20, first, initializes the bank 1 unit 307 _-1, the initial value to each flag in the RAM1601 Is set (S2001). Specifically, the bank set is turned ON, the paper present is turned ON, the paper size data is set to A4 (horizontal), and the lift sensor is turned ON.

Next, it is judged whether or not the external check mode 1 is set (S2002), and if it is set, the check 1 processing routine of step S2003 is executed, and if it is not set, step S2004.
Proceed to.

In step S2004, it is determined whether or not there is a change in the bank set sensor of bank 1 (paper feed cassette 103 _-1 ), and if there is no change, step S2008.
If there is a change, it is determined in step S2005 whether or not the bank cent sensor is ON, and if it is ON, a "bank set ON" signal is transmitted to the operation unit 301 and the component operation check tool 1501 (S200
6) If it is not ON, the "bank set OFF" signal is sent to the operation unit 301 and the parts operation check tool 150.
1 to S1 (S2007).

In step S2008, it is again determined whether or not the bank cent sensor is ON. If it is ON, the process proceeds to step S2009, and if it is not ON, step S2009 is performed.
Returning to 2002, the bank set state is repeatedly checked.

Next, steps S2009 and S201.
At 0, the presence / absence of the recording paper 120 is checked by the paper presence / absence sensor, and depending on the presence / absence of the recording paper 120, the check result is displayed in the operation unit 301 and the component operation check tool 150.
1 to S1 (S2011, S2012).

Subsequently, steps S2013 and S20.
At 14, it is determined whether the paper size sensor has changed,
The paper size (actually, the size of the tray containing the recording paper 120) is transmitted to the operation unit 301 and the component operation check tool 1501.

Next, the recording paper 12 stored in the bank
If 0 is not set in the paper feedable state, it is necessary to perform the recording paper setting process for setting the paper feedable state. Therefore, in step S2015, it is determined whether or not the upper limit sensor is changed. If there is a change, it is determined in step S2016 whether the upper limit sensor is ON,
If it is ON, it means that the recording paper is set in a paper feedable state, so in step S2017 a "set UP complete" signal is transmitted to the operation unit 301, the raising motor is turned OFF in step S2018, and an external check is performed in step S2019. If it is the external check mode 2, the upper limit sensor ON is transmitted to the component operation check tool 1501 and the process is ended. If the mode is not the external check mode 2, the process is finished as it is.

On the other hand, if there is no change in the upper limit sensor in step S2015, it is determined in step S2021 whether the upper limit sensor is ON, and if it is ON, the recording paper is set to the paper feedable state. If it is not ON, it is determined in step S2022 whether the upper limit motor is ON, and the upper limit sensor is ON.
If not, in step S2023 the operation unit 301
To the step S2024.
At step S2025, it is determined whether the external check mode 2 is set or not, and if the external check mode 2 is set, the upper limit sensor OFF is transmitted to the component operation check tool 1501 and the process ends. If the mode is not the external check mode 2, the process is finished as it is.

Next, the check 1 processing routine will be described with reference to FIG. As is clear from step S2003 of FIG. 20, the check 1 processing routine is
External check mode 1 (Parts operation check tool 150
This is executed in the case of a mode in which a designated component is externally checked by using 1). First, it is determined whether or not a "lift motor ON" signal is received from the component operation check tool 1501 (S2101), and if received, the lift motor is turned on (S2102), and if not received, step S21.
Go to 03.

Next, it is judged whether or not the "moving motor OFF" signal is received from the parts operation check tool 1501 (S2103), and if it is received, the lifting motor is turned OFF (S2104), and if not received, step S2105. Go to.

Next, it is judged whether or not the "upper limit sensor state" signal is received from the component operation check tool 1501 (S2105), and if it is received, the upper limit sensor state is transmitted to the component operation check tool 1501 (S2106). , If not received, the process proceeds to step S2107.

Subsequently, the parts operation check tool 1501
It is determined whether or not a "backset state" signal is received from the server (S2107), and if received, the backset state is transmitted to the component operation check tool 1501 (S210).
8) If not received, the process proceeds to step S2109.

Next, it is judged whether or not a "paperless sensor state" signal is received from the component operation check tool 1501 (S2109), and if received, the paperless sensor state is transmitted to the component operation check tool 1501 ( S2110),
If there is no reception, the process proceeds to the next step (not shown).

Although not described, it is assumed that steps are provided according to the number of designated parts (single products) to be similarly checked.

Control operation of the part operation check process of the part operation check tool Next, the control operation of the part operation check process using the part operation check tool 1501 will be described. When performing the component operation check process, as shown in FIG. 15, the component operation check tool 1 is connected to the communication line 158 of the copying machine main body 101.
501 is connected, and the power of the parts operation check tool 1501 is turned on.

The tool control plate 1501a of the component operation check tool 1501 is the component operation check tool 1501.
When the power is turned on, the flowchart of the component operation check process shown in FIG. 22 is executed. First, the parameter adjustment tool 310 is initialized (S2201), and the display device 1501c of the component operation check tool 1501 displays a selection of which mode of driving component operation check, sensor manual check, and sensor automatic check is to be executed. (S
2202). In this state, the user can display the display device 1501c.
Key is input through the key input device 1501b based on the display screen (for example, "drive component operation check: 1, sensor manual check: 2, sensor automatic check: 3").

Subsequently, it is determined whether or not a designated key (here, any one of keys 1 to 3) is turned on (S220).
3) If the key is not the designated key, the process returns to step S2202. When the designated key is turned on, the selection number is "3"
(S2204), if the selection number is "3", the process proceeds to step S2211, and if the selection number is not "3", the process proceeds to step S2205.

In step S2205, since the selected mode is not the sensor automatic check mode (that is, the selection number is not "3"), a tool start signal / single item check signal is transmitted to the operation unit 301, and then step In S2206, it is determined whether or not the selection No. is "1", and if the selection No. is "1", Step S
At 2207, the component designation display screen is displayed on the display device 1501c. In this state, the user displays the display screen of the display device 1501c (for example, "up motor OFF: 100, up motor ON: 101, paper feed clutch OFF: 110, paper feed clutch ON: 111, ..., End: 999"). Based on the above, key input is performed via the key input device 1501b. If the selection number is not "1", the process advances to step S2212.

Subsequently, steps S2208 to S2210.
Then, it is determined whether or not the designated key is turned on, and the code of the designated key that is turned on is transmitted to the related unit, and "End: 99
If "9" is designated, the process returns to step S2202.

On the other hand, if the selection No. is "3" in step S2204, the tool start signal / sensor check signal is transmitted to the operation unit 301 in step S2211, because the selected mode is the sensor automatic check mode. Subsequently, in step S2212, a sensor designation display screen is displayed on the display device 1501c. In this state, the user displays the display screen of the display device 1501c (for example, "bank sensor: 1, paper-free sensor: 2, paper size: 3, upper limit sensor: 411, ..., End: 999").
Based on the above, key input is performed via the key input device 1501b.

Subsequently, in step S2213, it is determined whether or not the designated key is turned on. If it is the designated key, the code of the designated key turned on in step S2214 is transmitted to the related unit, and then step S2215. Determines whether the specified key is "End: 999", and "End: 99"
If "9" is designated, the process returns to step S2202.

On the other hand, if the designated key is not turned on in step S2213, it is determined whether or not there is a signal received from each of the units 301 to 309 of the copying machine main body 101 (S2216), and the received signal is If there is, the status of the corresponding sensor is judged from the received code and the display device 1
Displayed on 501c (S2217), step S2213
Return to

Concrete Example of Operation Check Next, with respect to the operation check based on the control operation of the parts operation check tool 1501 and each unit,
(Drive component operation check), (Sensor manual check),
A specific description will be given in the order of (automatic sensor check) and (check operation when bank paper feed set is defective).

(Driving Component Operation Check) First, when performing a driving component operation check, the user selects the mode designation display screen of the component operation check tool 1501 (S220 in FIG. 22).
When the designated key No. 1 is selected in 2), the component operation check tool 1501 sends a single item check signal together with the tool start signal to the operation unit 301.

Upon receiving the tool start signal / single product check signal, the operation unit 301 displays the single product check mode (external check mode 1) on the operation panel.

Next, the user operates the component operation check tool 1
When a drive component is designated on the component designation display screen 501 (S2207 in FIG. 22), the component operation check tool 150
Each unit 301 to 3 to which the corresponding code is related from 1
Sent to 09. External check mode 1 on the main unit
To set the copy disabled state (S1810 in FIG. 18) and turn on or off the component specified by the received code (check 1 process in FIG. 21).
To Here, when the designated key No. is 999 (end), each of the units 301 to 309 on the main body side receives as a tool end signal and resets the external check mode 1 and the external check mode 2 (tool signal in FIG. 19). The check mode is ended by performing S1905 to S1907) of the input processing.

After the code is transmitted, if the code is not 999 (end), the part operation check tool 1501 again enters the part code designated key input waiting state (S2208 in FIG. 22). Is in the mode designation key input waiting state (S2202 to S220 in FIG. 22).
3).

(Sensor Manual Check) When performing a sensor manual check, the user operates the parts operation check tool 150.
When the designated key No: 2 is selected on the mode designation display screen of No. 1 (S2202 in FIG. 22), the parts operation check tool 1
A single item check signal is transmitted from 501 to the operation unit 301 together with a tool start signal.

Upon receiving the tool start signal / single product check signal, the operation unit 301 displays the single product check mode (external check mode 1) on the operation panel.

Next, the user operates the parts operation check tool 1
When the sensor is designated on the sensor designation display screen 501 (S2212 of FIG. 22), the component operation check tool 150
Each unit 301 to 3 to which the corresponding code is related from 1
Sent to 09. External check mode 1 on the main unit
Is set to set the copy disabled state (S1810 in FIG. 18), and the state of the sensor designated by the received code is checked and sent back to the component operation check tool 1501 (check 1 process in FIG. 21). After that, when the sensor changes its state by forcibly operating the sensor, the contents are sent back. When the designated key No. is 999 (end), each unit 301 to 309 on the main body side receives as a tool end signal and resets the external check mode 1 and the external check mode 2 (tool of FIG. 19). S1905 to S1 of signal input processing
907) to end the check mode.

After the code is transmitted, if the code is not 999 (end), the parts operation check tool 1501 again enters a sensor code designation key input waiting state (S2213 in FIG. 22), during which the main body side When the sensor status signal from the device is received, the content is displayed (S2216 and S2217 in FIG. 22), and when the sensor status signal is received, the mode designation key input waiting state (S2202 in FIG. 22) is received.
~ S2203).

(Sensor automatic check) When the sensor automatic check is performed, the user operates the component operation check tool 150.
When the designation key No. 3 is selected on the mode designation display screen of No. 1 (S2202 in FIG. 22), the parts operation check tool 1
A sensor check signal is transmitted from 501 to the operation unit 301 together with a tool start signal.

The operation unit 301 sets the external check mode 2 when receiving the tool start signal / sensor check signal.

Next, the user operates the parts operation check tool 1
When the sensor is designated on the sensor designation display screen 501 (S2212 of FIG. 22), the component operation check tool 150
Each unit 301 to 3 to which the corresponding code is related from 1
Sent to 09. External check mode 2 on the main unit side
Is set, and the state of the sensor designated by the received code is checked and sent back to the component operation check tool 1501 (check 1 processing in FIG. 21). After that, when the status of the sensor changes, the details are sent back. When the designated key No. is 999 (end), each unit 301 to 309 on the main body side receives as a tool end signal and resets the external check mode 1 and the external check mode 2 (tool of FIG. 19). Signal input processing S1
905 to S1907) to end the check mode.

After the code is transmitted, if the code is not 999 (end), the parts operation check tool 1501 again enters the sensor code designation key input waiting state (S2213 in FIG. 22), during which the main body side When the sensor status signal from the device is received, the content is displayed (S2216 and S2217 in FIG. 22), and when the sensor status signal is received, the mode designation key input waiting state (S2202 in FIG. 22) is received.
~ S2203).

[0171] closed (check operation when the bank feeding set poor) then set the recording sheet 120 in the bank 1 unit 307- _{1 to 307 -4,} (not shown) the front cover of the copying machine main body 101 The checking operation will be described by taking as an example the case where the copy-ready state does not take place.

First, the component operation check tool 1501 is connected to the copying machine main body 101 and the power is turned on. next,
Select the automatic sensor check and specify the upper limit sensor.
Here, it is confirmed that the upper limit sensor remains in the OFF state.

Then, the sensor automatic check mode is released, drive component operation check is selected, and the upper limit motor is turned on.
Select Here, confirm that the tray moves up (that is, the upper limit motor is in a normal operating state).

Next, the driving component operation check mode is released, the sensor manual check is selected, and the upper limit sensor is selected. In this state, move the filler of the upper limit sensor by hand to turn it on / off. The upper limit sensor is always OF
If it remains F, it is possible to confirm that the upper limit sensor is defective.

The upper limit sensor is replaced, and the filler of the upper limit sensor is manually moved to turn it on / off. Confirm that the ON / OFF of the upper limit sensor is normal. Finally, confirm that the bank set operation is normal.

Effects of Second Embodiment As described above, according to the second embodiment, the component operation check tool 1501 housed in an independent housing as an external device.
By using, you can easily check the status of sensors and the operation of driving parts from the outside, so when a trouble such as a serviceman call occurs, the serviceman can easily check the parts operation inside the machine from the outside. The cause of the trouble can be judged and dealt with early.

In particular, the operating states of the sensors can be checked while the machine is operating, without touching the sensor terminals while the machine cover is still attached. It is also possible to check the operation of the sensor itself with the machine cover removed, making it easy to identify the cause of troubles related to the sensors.

In addition, since the operation of the sensor alone can be confirmed without touching the sensor terminals by manually operating the filler with the machine cover removed, the cause of troubles related to the sensors can be easily identified.

Further, when checking the state of the sensors when the sensors are manually operated, copying is prohibited, so that it is possible to avoid an accidental dubbing due to the copying operation while checking the sensors.

Further, since the drive component can be activated or deactivated independently from the outside, the operation check of the component or the unit can be performed.

Further, when the operation check of the individual components or the individual units is performed, the copy operation is automatically prohibited, so that it is possible to avoid the occurrence of accidental dubbing due to the copy operation.

Further, the component operation check tool 1501 can be provided as a tool having a simple structure, small size, easy to carry, and excellent in serviceability, and can be commonly used by a plurality of models, so that it is excellent in cost performance. ing.

[0183]

As described above, according to the image forming apparatus of the present invention (Claim 1), a plurality of units in which the apparatus and each member in the machine are classified according to their function and each is constituted as one control unit. And a plurality of units each having at least a CPU provided in each unit which is a control unit and responsible for control of the corresponding unit, a nonvolatile memory storing control operation parameters, and multiplex communication means for multiplexing signals. Unit control means, a communication medium for connecting the multiple communication means of each unit control means, and a control operation parameter stored in an independent housing as an external device and stored in a plurality of unit control means. And a parameter adjusting means for adjusting, which is stored in the nonvolatile memory of the unit controlling means by using the parameter adjusting means. To adjust the control operation parameters, without causing an increase in equipment cost, it is possible to adjust the various settings easily device.

The image forming apparatus of the present invention (claim 2)
Since the parameter adjusting means adjusts the control operation parameter stored in the non-volatile memory of the unit controlling means via the communication medium, workability and operability are good.

Further, the image forming apparatus of the present invention (claim 3).
Is a multiplex communication means for the parameter adjustment means to perform multiplex communication via a communication medium, an adjustment program storage means for storing a parameter adjustment program, and an operation display means for displaying and setting parameters. Since the configuration includes, it is possible to easily confirm the setting state of the control operation parameter.

The image forming apparatus of the present invention (claim 4).
Since the parameter adjusting means has the printer interface means, the setting contents of the control operation parameters can be viewed and the workability can be improved. In addition, there is no need to provide a printer interface on the device body side, and no special burden is imposed on the device body side.

The image forming apparatus of the present invention (claim 5).
Is a multiple unit that classifies the equipment and each member in the aircraft by function and configures each as one control unit.
Multiple units provided in each unit which is a control unit, each unit control unit having at least a multiplex communication unit for multiplex communication of a CPU and a signal which controls each corresponding unit, and multiplex communication of each unit control unit A communication medium for connecting the means, and a part operation check means which is housed in an independent housing as an external device and which accesses each part in the unit through the unit control means and checks the part operation, In order to check the component operation of each unit using the component operation check means,
You can easily check the status of sensors and the operation of driving parts from the outside. Therefore, when a trouble such as a serviceman call occurs, the serviceman can easily check the operation of the parts inside the machine from the outside, and can quickly determine the cause of the trouble and deal with it.

Further, the image forming apparatus of the present invention (claim 6).
The component operation check means checks the state of the sensors, which are the components arranged in each unit, through the communication medium and the unit control means. You can check without touching the sensor terminals with the cover attached. It is also possible to check the operation of the sensor itself with the machine cover removed, making it easy to identify the cause of troubles related to the sensors.

Further, the image forming apparatus of the present invention (claim 7).
Since the component operation check means checks the state of the sensors associated with the operation of the image forming apparatus, it is easy to find the cause of troubles related to the sensors.

An image forming apparatus of the present invention (claim 8)
Since the component operation check means checks the state of the sensors when the sensors are manually operated, it is easy to find the cause of troubles related to the sensors.

An image forming apparatus of the present invention (claim 9)
When checking the status of the sensors when the sensors are manually operated, each unit control means prohibits the copying operation of the corresponding unit. Can be avoided.

The image forming apparatus of the present invention (claim 1)
In 0), when each unit control unit executes the component operation check by the component operation check unit, it controls the active component in the corresponding unit to the operable state, so that the drive component is activated independently from the outside. Can be deactivated or deactivated,
The operation of individual parts or individual modules can be checked, and the cause of troubles can be easily identified.

The image forming apparatus of the present invention (claim 1)
In 1), when each unit control unit executes a component operation check by the component operation check unit, it controls the active component in the corresponding unit to an operable state, and
Since the copy operation of the corresponding unit is prohibited, it is possible to avoid accidental dubbing due to the copy operation.

The image forming apparatus of the present invention (claim 1)
In 2), the component operation check means is for multiplex communication means for performing multiplex communication via a communication medium, an access program storage means for storing an access program for a specified component, and a component for accessing. Since it has a configuration including operation display means, it can be provided as a tool with a simple configuration that is small, easy to carry, and has excellent serviceability, and it can be commonly used by multiple models, improving cost performance. To do.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a configuration of a copying machine according to a first embodiment.

FIG. 2 is an explanatory diagram illustrating a schematic configuration of a bank unit of a bank paper feeding unit according to the first embodiment.

FIG. 3 is a block diagram showing a configuration of a control system of a copying machine, which is a main part of the first embodiment.

FIG. 4 is a block diagram showing a configuration of each unit control plate of the first embodiment.

FIG. 5 is a block diagram showing a configuration of a tool control plate of the parameter adjustment tool.

FIG. 6 is an explanatory diagram showing a relationship between a virtual image on a photosensitive drum and a paper feeding position.

FIG. 7 is a flowchart of an operation unit process.

FIG. 8 is a flowchart of a standby processing routine according to the first embodiment.

FIG. 9 is a flowchart of a processing routine during copying.

FIG. 10 is a flowchart of a manual sheet feeding process.

FIG. 11 is a flowchart of a manual sheet feeding process.

FIG. 12 is a flowchart of parameter adjustment processing of a parameter adjustment tool.

FIG. 13 is a flowchart of a parameter setting processing routine.

FIG. 14 is a flowchart of a parameter display processing routine.

FIG. 15 is a block diagram showing a configuration of a control system of a copying machine, which is a main part of the second embodiment.

FIG. 16 is a block diagram showing the configuration of each unit control plate of the second embodiment.

FIG. 17 is a block diagram showing a configuration of a tool control plate of the component operation check tool.

FIG. 18 is a flowchart of a standby processing routine according to the second embodiment.

FIG. 19 is a flowchart of a tool signal input processing routine.

FIG. 20 is a flowchart of bank setting processing of a bank unit.

FIG. 21 is a flowchart of a check 1 processing routine.

FIG. 22 is a flowchart of a component operation check process.

[Explanation of symbols]

125 feeding sensor 134 intermediate roller sensor 136 a registration sensor 142 fixing unit entrance sensor 146 discharge sensor 152 unit controlling CPU 158 communication line 301 operation unit 302 charging unit 303 is exposed and the optical unit 304 developing unit 305 the transfer unit 306 the cleaning unit 307 _{- 1 to} 307 _-4 bank 1 unit to bank 4 unit 308 transport unit 309 fixing /
Paper ejection units 301a to 309a Unit control plate 310 Parameter adjustment tool 310a Tool control plate 310b Key input device 310c Display device 350 Printer 1501 Parts operation check tool 1501a Tool control plate 1501b Key input device 1501c
Display device

Claims (12)

[Claims] 1. An apparatus and each member in an aircraft are classified according to their functions, and a plurality of units each configured as one control unit are provided, and each unit serving as the control unit is provided with control of a corresponding unit. CP in charge
U, a plurality of unit control means having at least a non-volatile memory for storing control operation parameters and a multiplex communication means for multiplexing signals, and a communication medium for connecting the multiplex communication means of each unit control means And parameter adjusting means for adjusting the control operation parameters stored in the independent housing as an external device and stored in the plurality of unit control means, and using the parameter adjusting means, An image forming apparatus, wherein a control operation parameter stored in a non-volatile memory of the unit control means is adjusted. 2. The image forming apparatus according to claim 1, wherein the parameter adjusting unit adjusts a control operation parameter stored in a non-volatile memory of the unit controlling unit via the communication medium. apparatus. 3. The parameter adjusting means for performing multiplex communication through the communication medium, an adjusting program storing means for storing a parameter adjusting program, and for displaying and setting parameters. 3. The image forming apparatus according to claim 2, wherein the image forming apparatus includes the operation display unit. 4. The image forming apparatus according to claim 2, wherein the parameter adjusting unit has a printer interface unit. 5. An apparatus and each member in the machine are classified according to their functions, and a plurality of units each configured as one control unit and a unit provided in each unit that is the control unit are provided to control the corresponding units. CPU in charge
And a plurality of unit control means having at least multiplex communication means for multiplex communication of signals, a communication medium connecting the multiplex communication means of each of the unit control means, and an external device housed in independent housings. And a part operation check means for checking each part operation by accessing each part in the unit through the unit control means, and checking the part operation of each unit by using the part operation check means. An image forming apparatus characterized by the above. 6. The component operation check means checks the state of sensors which are components arranged in each unit via the communication medium and unit control means. Image forming device. 7. The image forming apparatus according to claim 6, wherein the component operation check unit checks the states of the sensors associated with the operation of the image forming apparatus. 8. The image forming apparatus according to claim 6, wherein the component operation check means checks the state of the sensors when the sensors are manually operated. 9. When checking the states of the sensors when the sensors are manually operated using the component operation check means, the unit control means prohibits the copy operation of the corresponding unit. The image forming apparatus according to claim 8, wherein the image forming apparatus comprises: 10. The unit control means controls, when the component operation check by the component operation check means is performed, an active component in the corresponding unit to be in an operable state. The image forming apparatus described. 11. Each of the unit control means, when the component operation check by the component operation check means is executed, controls the active component in the corresponding unit to an operable state and copies the corresponding unit. 6. The image forming apparatus according to claim 5, wherein the image forming apparatus is prohibited. 12. The component operation check means, multiplex communication means for performing multiplex communication via the communication medium,
6. The image forming apparatus according to claim 5, wherein the image forming apparatus includes an access program storage unit that stores an access program for a designated component and an operation display unit that designates a component to be accessed.