JPS63121857A - Copy machine for data logging system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a data logging system applied to various types of equipment, particularly copying machines.

(Prior art) For example, in the case of copying machines, devices have been devised to read data in various modes, but as shown in Fig. 18, they either use the power from the copying machine or use a separate power source to generate signals. In many cases, lines were isolated using photocouplers.

When using power from a copying machine, it is impossible to count the downtime when the copying machine's power switch is OFF. Further, even when isolated using a photocoupler, it is possible to communicate data in the positional direction, but if it is bidirectional, the circuit becomes complicated and expensive.

(Purpose) The present invention was made based on this background,
The object of the present invention is to provide a copying machine for a data logging system that can read various copying states without changing the main control board of a conventional copying machine.

(Configuration) This system collects field data such as the number of copies by mode and number of failures of multiple copiers in remote areas using telephone lines, and enables P/C meter reading in a wide area.
It performs failure and maintenance diagnosis.

First, Figure 1 shows the configuration of this system.

The adapter collects data (number of copies, number of jams, abnormality counter, etc.) of the copying machine (PPC) 4, and sends the collected data to the telephone line as necessary.

Connection to the telephone line is also made via a system phone.

The center device 2, which uses a personal computer, receives data sent from the adapter 1 via a telephone line and performs analysis, diagnosis, inspection, etc. Similar to the adapter 1, the system phone 3 is used for connection to the telephone line.

Figures 2 and 3 show connection diagrams of each device. The center side shown in FIG. 2 connects the telephone line to the system phone 3, and the connection between the system phone 3 and the center device 2 is via R3-2.
Use D type connector 6 for 32C. On the other hand, on the terminal side shown in FIG.
is connected with R3-232C connector cable 7.

Data communication between the copying machine and the adapter is performed in parallel, but in order to connect the main control board of the copying machine without making any changes, an interface port is inserted directly into the RAM socket, and the board and adapter are connected using a cable. . Also, connect cables for each sensor (temperature, humidity, power supply voltage) between the copying machine and the adapter.

Next, the configuration of the adapter will be explained based on the configuration diagram of the adapter shown in FIG. 4 and the circuit diagram shown in FIG. 5.

CPUI 1: i) Classifies, counts, and collects various information sent from the copying machine 4;

ii) Control of parallel communication with the copying machine 4.

iii) Control of serial communication with system phone 3 using R3-232C.

iv) Setting and counting real-time clock etc.

Dual port RAM 12, this is a buffer for communication between the CPU and the copying machine.

Parallel I10 boat 13, this is 1) Control signals for R3-232C interface.

1i) DipSW input used for.

Serial port 14, which is a data input/output port for the R3-232C interface.

An A/D converter 15 is used to detect various sensors (temperature inside the machine, humidity, power supply voltage), and a timer 16 is used to count operating time, downtime, etc. (an interrupt occurs every second).

ROM 17 is a program memory for controlling the adapter.

RAM18, this is 1) Working area for adapter control program ii) Memory for data collection, counting, and retention.

The above functions are performed by a 1-chip microcontroller 6305Z.
(shown in Figure 5).

DipSW 19, which sets the data format and baud rate for serial communication.

Tribar receiver 20% for R3-2320 This is the interface for communication with system phone 3, T
It converts the TL level to ±12V(7)R3-232C level.

The reset circuit 21 detects the +5V power supply and outputs a standby signal (STBY) to the CPU II when the voltage falls below a certain level. This signal causes the CPU
II stops and the built-in RAM goes into backup mode. After this signal returns to H, the CPUI 1 enters the reset start state. 22 is a power supply section, and 23 is a power supply unit.

A circuit diagram of the adapter is shown in FIG. R3O to R83 are C
16-byte dual port R in PU (6305Z)
This is an address line for selecting AM. W
R and RD are read/write controls for the boat, and T is a select signal for accessing the dual boat RAM. DBB.

-DBB are data bus lines for reading and writing the RAM. PB0 to PB are input ports for power monitoring on the main control board of the copying machine, and are connected to photocouplers (PS2403).
). PB (l is VAA (
24V), P B+ is Vcc (5V). CPU
The 5TBY (standby) signal is used for resetting, and is connected to the reset IC (7705). This IC becomes 'L# level when Vcc becomes 4.7v or less.

PFO~P F t and pco~PG? is DipSW
It is used to set the mode and baud rate for communication with the system phone.

TX, 5CLK, PAs, PA6. PAo.

RX, PCj, Pc4. PCs l PCb , Pc7
are the data lines (TX, RX) and control signals used to communicate with the system phone. Each signal is IC7518B for R3-232C interface,
It is connected to the terminal via 75189. The names of each terminal are based on the modem interface.

MPI and MP2 are for setting the mode of the CPU, and are connected to the output ports P As and P As, and set the mode by themselves using software. A
No~AN? is the analog input of the A/D converter, and AVcc and AVss are its reference voltages. XT
AL and EXTAL are connection terminals for the CPU's system clock crystal. In this example, R3-232C
A 4.9152 MHz crystal was used to produce a baud rate of . Voltage is Vc of IC other than CPU
It is divided into a VCM for the CPU and a VCM for the CPU, and the VCM side can be backed up by lithium voltage. The analog reference AV cc is connected from the Vcc side. C
N103 is connected to the copying machine via the path buffer of the interface port. The lower left is the power connection area, DC-DC
is a DC-DC converter with 5V input and ±12V output.

Next, the interface port will be explained based on FIGS. 6 and 7. The interface port 30 has a pin as shown in FIG. 6 so that it can be directly connected to the RAM (5517) socket on the main control board of the copying machine. 7th
As shown in the circuit diagram in the figure, the interface port has a RAM (5
517) and a bus driver/receiver for interfacing with the adapter. As can be seen from this figure, when A3-A1° are all H, access to the RAM on the interface port is prohibited and the access is switched to the dual port R1AM of the microcontroller on the adapter.

That is, for example, the RAM address is C00OH-C7.
If it is FFH, the upper 16 bytes C7FOH-C7
The address of FFH is to be allocated on the dual port RAM. This allows the copying machine to communicate data with the adapter in the same way as reading and writing to RAM.

In addition, since the copying machine and the adapter have separate power supplies, they must be isolated from each other, but in this example, the power supply is open.
This is achieved by using the collector's bus driver and receiver.

FIG. 8 shows a mechanical section inside the main body of one type of copying machine embodying the present invention.

A contact glass 40 on which a document is placed is provided, and an optical scanning section is provided below the contact glass.

The optical scanning system includes an illumination lamp 41, a first mirror 42, and a second mirror 42.
Mirror 43, third mirror 44, zoom lens 45, fourth
Equipped with mirror 46 etc. The optical scanning system is mechanically driven to scan in the sub-scanning direction, that is, in the horizontal direction of the drawing, while irradiating the photosensitive drum 47 with light corresponding to the original image. In this example, by adjusting the illumination distance of the zoom lens 45, the original image in the main scanning direction, that is, in the direction perpendicular to the drawing;
The magnification of the copy image is adjusted, and the magnification of the original image and the copy image in the sub-scanning direction is adjusted by adjusting the sub-scanning speed of the optical scanning system.

A charger 48, an eraser 49, a developing device 50, a transfer charger 51, a separation charger 52, a cleaning unit 53, and the like are provided around the photosensitive drum 47. There are two paper feed systems, 54.5 cassettes.
5 is selected, and the copy sheet is fed by paper feed rollers 56 and 57. Further, a double-sided tray 58 is provided, and when performing back-side copying, a copy sheet is supplied from the double-sided tray 58. Paper feeding mechanisms are provided near the cassettes 54 and 55 and the duplex tray 58, respectively (59 is a duplex paper feeding roller).

Next, an outline of the copy process will be explained. The photosensitive drum 47 rotates clockwise in FIG. 8, and its surface is uniformly charged to a predetermined high potential. When the charged surface is irradiated with light from an optical scanning system, the potential changes depending on the intensity of the light. Since the light emitted by the optical scanning system corresponds to the original image, a potential distribution corresponding to the original image, that is, an electrostatic latent image, is formed on the surface of the photoreceptor drum 47. Photosensitive drum 47
When the portion on which the electrostatic latent image is formed passes through the developing device 50, toner is attracted to the photoreceptor drum 47 according to the potential distribution, thereby forming a toner image (visible) corresponding to the electrostatic latent image. image) is formed. A copy sheet is fed at a predetermined timing from a selected sheet feeding system to the photosensitive drum 47 on which the visible image has been formed in this way, and is superimposed on the visible image. The visible image is then transferred to a copy sheet by the transfer charger 51. The copy sheet to which the visible image has been transferred is separated from the photoreceptor drum 47 by a separation charger 52.
It is sent out to the transport section. The visible image is then fixed onto the copy sheet by a fixing section 61 provided in the conveyance section.

In the single-sided copy mode, the copy sheet that has been fixed passes through the path switching mechanism 62 and is immediately ejected in the direction of the arrow; however, in the double-sided copy mode, when the copy is made on the first side, the The conveyance direction of the sheet is reversed by the path switching mechanism 62, and the sheet is stored in the double-sided tray 58 through the conveyance machine WI63.

An operation board 6o is arranged on the top surface of the copying machine.

Further, an automatic document feeder (ADF device) is installed above the contact glass 4° of this copying machine, and a sorter is installed near the paper ejection port.

FIG. 9 shows the appearance of the operation board of the copying machine. Referring to the figure, this operation board includes a program key 70 for storing and recalling programs, a program display 71 for indicating that a program is in use, an interrupt key 72 for setting and canceling interrupt copy, and an interrupt display for indicating the interrupt copy status. 73, a number confirmation key 74 used to confirm the number of sheets set during copying, when changing the size and magnification/programming, a numeric keypad 75 used when setting the number of copies, changing the size and setting the program, a display panel 76 for displaying various information; A double-sided key 77 for making double-sided copies, a double-sided display 7B that displays the status of double-sided copying, a binding margin adjustment key 79 that is used to create a VIU margin (margin) for copies, and a binding margin dimension display that displays binding margin dimensions. 80, DF mode key 81 used when performing paper size unification or automatic paper selection, size unification display 82 that shows the size unification state when using DF, DF
automatic paper selection display 83 showing the automatic paper selection state during use;
(Sort display 84 that shows the sort state when using the sorter, Stack display 85 that shows the stack state when using the sorter, Sorter key 86 used to set/cancel the sorter mode and set/cancel the stack mode, ADF (full automatic) mode ADF display 87 indicating SADF (semi-automatic) mode, SADF display 88 indicating SADF (semi-automatic) mode, DF key 89 used when setting the document feeder to either ADF mode or 5ADF mode, document size indicator that lights up when entering document dimensions Manual display 9o, Specified dimension manual display 91 that lights up when a specified dimension is entered, Dimension scaling key 92 used when selecting the copy magnification by dimension, Dimension used when selecting the copy magnification in 1% increments A variable magnification key 93, a page continuous copying display 94 that indicates the page continuous copying status, a page continuous copying key 95 used when automatically copying a spread document one side at a time, and a page continuous copying key 95 used when determining the copy magnification based on the document size and paper size. Original size selection key 9
G, a reduction key 97 used when making a reduced copy, an enlargement key 98 used when making an enlarged copy, an equal size key 99 used when returning to a same size copy, a paper selection key 100 for copy paper selection key. A density adjustment key 101 used to adjust the shading of a copied image, an automatic density key 102 used to set and cancel the automatic temperature adjustment function, used to change the number of sheets to be set, interrupt repeat copying, cancel program protection, etc. Clear stop key 103, start key 104 for starting copy operation, preheating mode mode clear key 10 used to return each mode to standard mode or to switch between preheating state and normal state.
5. A preheating display 106 indicating the preheating state is provided.

In the size uniformity mode, the copy magnification is automatically set according to the sizes of the original and paper (copy sheet) (for example, A4, B5, etc.). In automatic paper selection mode, the paper source is automatically selected according to the original size and copy magnification. Binding margin adjustment is a function that shifts the correspondence between the position of the original image and the position on the copy sheet in the sub-scanning direction. In this example, the amount of position deviation is -10° -5, 0, +5 and +10 (Otori 1) Any of the five levels can be specified. It is possible to perform binding margins on the front and back sides of the copy sheet independently.

To set the dimension scaling mode, press the dimension scaling key 93, specify the original dimensions using the numeric keys 75, press the number confirmation key 74, press the -degree dimension scaling key 93 again, and then press the numeric keys 75. Specify the dimensions of the copy using and press the number confirmation key 74.

With this operation, the copy magnification is automatically set by calculating the original and copy dimensions.

In this example, the copy density is adjusted in seven steps, and by pressing a key, the density can be adjusted in the darker or lighter direction one step at a time.

FIG. 10 schematically shows the configuration of the electric circuit of this copying machine. Referring to FIG. 10, this copying machine is equipped with a microcomputer unit 120, which includes an automatic document feeder 121, a sorter 122, an operation board 60, an optical system control unit 123, a high voltage power supply unit 124, and a motor. A control unit 125, a heater control unit 126, a solenoid control unit 127, a relay control unit 12B, and a sensor unit 129 are connected. The microcomputer unit 120 includes
Microprocessor 130, read-only memory (R
OM) 131, read/write memory (RAM) 132, I1
0 port 133, A/D converter 134 and driver 135.

Figure 11 shows part of the read/write memory (RA, M). Referring to the figure, this memory includes a memory area PCC3R for parallel communication with adapter 1.
-PCDR14 (this part is on the adapter), communication command buffer PCCMD, and status buffer PC3TS are allocated.

FIG. 12 shows the relationship between commands and status.

Referring to the figure, the command code OIH is duplex mode, and the next status informs the status of duplex mode 1, 2.3 inverted ejection, and back side copy. Command code 02H is in an optional state, and the next status informs which mode among 5ADF mode, ADF mode, stack mode, and sort mode.

Further, the 5PYST (copying in progress) flag is used so that the copy count in each mode can be incremented only when this flag is set.

Ko Manno 65, 71, 74. 75, 77, 81, 85, 87.

93, 100, 115, 121, 122, 130.

141, 151, 155, 200% (code 00H~1
2H) and zoom magnification 50% to 200% (code 32
H~C8H) is represented by the following status. Command 04H
indicates whether or not the document was fed by DF.

Command 05H indicates that the print button has been pressed at the start of copying and the copying operation has begun. Command 06H represents the paper size in copy size. 07H indicates the cassette stage used for copying, the LOWWER flag indicates the lower cassette, and the UPPER flag indicates the upper cassette. Commands 08H and 09H indicate the number of copies set, 08H indicates the lower 1 digit, 09H indicates the upper 1 digit, and the next status contains a value from 0 to 9. Incidentally, when this command data is a serviceman call, an abnormality code (2 digits) is entered instead of the number of sheets set. Command OAH is an end status, and the next status indicates oil end, paper end, or toner end. Command OBH is a toner replenishment command, and this code is sent from the copying machine to the adapter every time toner is replenished. Command OCH is a service man call, and like the above, this code is sent when a service man call occurs. Furthermore, before sending this code, insert the abnormality code into the set number of sheets of 08H and 09H mentioned above and send it. ODH is the jam status, and the following status indicates whether the paper is jammed or not.
Indicates separation jam and paper feed jam. OFH is an exposure level, and the next status is expressed in seven stages from 1 to 7.

Next, FIGS. 13 to 15 show flowcharts of data transmission from the copying machine to the adapter. When the power is turned on,
Perform initial settings. When the initial settings are completed, the computer waits while repeatedly performing various processes such as "key scan" and "sensor state reading".

Through the "key scan" process, the key input from the operation board is processed, various status settings are made according to the key input, and the corresponding transmission data is transmitted.

Next, magnification control is performed and the magnification is transmitted. During the standby process, when the temperature of the fixing section becomes higher than a predetermined value and the copying becomes possible, the standby process is continued while checking whether or not the print start key has been input.

When the print start key is turned on, the copy operation starts. When a copy operation is started, a series of processes of "key scan", "sensor state reading", "heater control", "display control" and "copy process control" are repeatedly executed. In this case as well, transmission data corresponding to each process is transmitted to the adapter in the same manner as described above. When the copy process is completed, the copy operation is ended and the device returns to the standby state. "
The "Jam Send" routine checks whether the jam is a jam after it has been reset.

This prevents sending the same jam multiple times. Also, in the case of an error, the error code will be sent first,
After that, the abnormality processing is repeated.

This loop continues until the power is turned on from OFF.

Next, the operation of the microcomputer on the adapter side is
This will be explained based on the flowcharts shown in FIGS. 1st
Figure 6 shows the main routine of the adapter. When the power is turned on, it first performs initial settings, reads non-analog sensors, and waits for commands from the Santa device. If there is no command, the sensor reading is repeated. When there is a call from the center device, the command is processed and
It reads the sensor again and enters a standby state. Commands from the copying machine are processed using parallel communication interrupts, and when an interrupt occurs, the received data is transferred to a buffer and commands are processed. Non-analog reading is A/
This is performed using a D interrupt, and when the conversion is completed, it is stored in the memory, the next analog channel is selected, A/D conversion is started, and this process is repeated. To count the operating time of the copying machine, a timer interrupt is used, which interrupts at intervals of one second and counts hours, minutes, and seconds. FIG. 17 shows a command processing routine from the center. There are commands for S, T, and so on. S uses a set command to change the data at the following address to the next data sent from the center. T sends all the contents of the counter to the center using a type command. K clears (0) all counters with a clear command. By sending data to the center device using the T command, and having the center device classify, analyze, and print the data, it becomes possible to collect data from remote locations.

(Effects) The present invention is as described above, and (11) data communication with the outside is possible without changing the control board of the copying machine.

(2) Compatibility with copying machines compatible with data logging systems is possible with slight program changes.

It has the following effects.

[Brief explanation of the drawing]

FIG. 1 is an overall view of the system according to the present invention, and FIG. Figure 3 is a connection diagram of each device, Figure 4 is a configuration diagram of the adapter,
Fig. 5 is its circuit diagram, Fig. 6 is an external view of the interface port, Fig. 7 is its circuit diagram, Fig. 8 is a schematic mechanical diagram of a general copying machine, and Fig. 9 is a plan view of its operation board. , FIG. 10 is a control block diagram of the copying machine, FIG. 11 is a diagram showing part of its memory contents, FIG. 12 is a diagram showing the relationship between commands and status, FIGS. 13, 14A, and 14B. , FIG. 14C, FIG. 14D, FIG. 14E, FIG. 14F, FIG. 14G, FIG. 14H, FIG. 14I, and FIG. 15A. 15B, 15C, 15D, and 15E are flowcharts of data transmission from the copying machine to the adapter, and FIGS. 16A, 16B, and 16C. Figure 1 Status figure 17

Claims (1)

[Claims] By connecting an interface board to the RAM socket on the copying machine control board, data can be sent and received.The dual port RAM built in the microcontroller on the adapter side is used as the communication means, and the address of the dual port is sent to the RAM on the copying machine control board. A copying machine for a data logging system characterized by having a part of the same address.