JPS6060661A - Control method of copying machine - Google Patents

Abstract

PURPOSE:To decrease execution time by preparing a sequence control table for copying mode on an RAM and transferring the corresponding control table from a floppy disc to the RAM at every selection of the copying mode. CONSTITUTION:When a power source is turned on, an ROM6 is started by a micro-CPU1 and the information on basic copying mode is transferred from an FD4 to a RAM5 via a bus 2 and an FD controller 3 and is at the same time executed. Basic mode setting is then executed to an input-output part 9 and an operation display device 8 via an input-output port 7. If there is an instruction for changing the mode from the device 8, the micro-CPU1 and the ROM6 identify the same via the port 7 and the bus 2 and the information in the selected copying mode is transferred from the floppy disk 4 to the RAM5 and is at the same time executed in the same way as mentioned above. The capacity of the ROM is thus considerably decreased. The capacity of the RAM itself does not increase as the RAM is required to store only the control table of the selected copying program.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a control method for a copying machine, and particularly to a storage and execution form of a copying machine control program.

(Prior Art) Copying machines usually have a plurality of paper feed trays, from which one can be selected, and many also have a variable magnification function.

Conventionally, in such copying machines, sequence control tables and execution routines that can execute all combinations of copy modes such as paper feed tray selection, transfer paper size, and variable magnification are stored in a read-only memory (ROM) and operated. The copying machine is controlled by selecting a specific mode from among the above combinations according to the designation from the display.

In such a conventional example, as mentioned above, since all combinations of copy modes are prepared in the ROM, the sequence control data is increased and complicated, and the total ROM capacity is also increased accordingly.

In addition, when executing control, combinations are judged, selected, and executed, which increases execution time. (This may be a factor in variations in the quality of b-products, etc.) Especially recently, since the above-mentioned copying modes have become more complex, there has been a drawback that the width of variation in control operations has increased.

(Purpose) The present invention has been made in view of the drawbacks of the conventional example, and is provided with a RAM that functions as a conventional ROM, and the currently selected copy mode is stored in the RAM for executing the copy program. Prepare the minimum necessary sequence control table to execute
It is an object of the present invention to provide a copy control method that reduces execution time and reduces variation in control operations by transferring data onto AM.

(composition) The configuration of the present invention will be explained below based on the illustrated embodiments.

FIG. 1 shows the overall system configuration of the present invention.

(2) is a micro CPU that executes a copying program; (2) is an address, data, and control bus for the micro CPU; (3) is a micro CPU that executes a copying program;
A floppy disk controller 4 is connected to the PU 1, and a floppy disk 4 is connected to the floppy disk controller 3 and stores a sequence control table for each copy mode.5 is a floppy disk that stores sequence control tables for each copy mode. The dual-purpose memory (RAM) 6 that stores the sequence control table is used to transfer the basic copy mode sequence control table from the floppy disk 4 to the RAM 5 when the power is turned on, and to recognize changes in the copy mode. , a control program for transferring a new copy mode sequence control table from the floppy disk 4 to the RAM 5, and an input/output signal control execution routine to be executed in each sequence control table. 7 is an input/output device which is connected to the micro CPU via a bus and controls the copying machine using a sequence control table stored in the RAM 5; 8 is an operation display device which realizes copy mode changes, displays, etc.; 9 is an input/output device; This is the input/output section of the copying machine connected to the output boat.

The outline of its operation will be explained below based on Figure 1. When the power is turned on, the R? 5
M6 is activated, and the data is transferred from the floppy disk 4 to the RAM 5 via the bus 2 and the floppy disk controller 3.
Copy basic mode information is transferred to and executed simultaneously.

By the above execution, the input/output unit 9
And basic mode setting is executed on the operation display device 8.

When there is a copy mode change instruction from the operation display device 8, the micro CPU and R
5M6 recognizes this, and as above, 70Tubi disk 4
The selected copy mode information is transferred from the RAM 5 to the RAM 5 and executed at the same time.

FIG. 3 shows the conventional method, that is, the operation flow for setting the copy magnification mode in the execution of the copy program stored in the ROM.

The operation timing of the return clutch of the optical system differs depending on the magnification ratio and transfer paper size.

Therefore, in the past, the operation was determined by determining the magnification and the size of the transfer paper, and comparing them with the respective times N1 to N6 to determine whether or not to operate. For example, in case of A3 size in reduced mode,
When the counter value is equal to or larger than N6, the return clutch is turned on and the A3
In the case of the size, the return clutch is turned on when the counter value is equal to or larger than N3.

However, according to the present invention, from the floppy disk 4,
Mode selection information is transferred to RA I'/I 5 and RA
Since I am trying to rewrite the information on M, for example,
As shown in the flowchart according to the present invention shown in FIG. 2, if the same size and A3 copy mode is selected, the return clutch operation timing N3 of the selected copy mode
All you have to do is compare and judge.

Next, the sequence control table shown in FIG. 4 will be explained.

In the figure, (a) shows an A3 table of the same size, ←) shows a B4 reduced table, and (-) shows a table pointer and a counter.

The sequence control table is defined by Tafl (7).
), each time the power is turned on or a different copy mode is selected, the pulse generator Z (not shown) is stored from the floppy disk 4 to the RAM 5 corresponding to the selected copy mode. The Noculus setting value that corresponds to the argument value that counted the pulses of They are lined up.

Let's assume that the image is A3 size and is showing the position of the table pointer or ■ that indicates the change in execution on the table. As time passes, the pulse count value counter is counted and amplified, and when the value NX becomes equal to or larger than the value N3 pointed to by the table pointer, the subsequent return clutch 75N execution routine is executed, and the table pointer moves to the ■ position. Replaced by value. Furthermore, NX continues to count amplifier, and when it becomes equal to or larger than N13, the same 4:,k
Then, the subsequent Halodan lamp OFF execution routine is executed, and the table pointer changes to I+j.

Sequence control is then executed in the same manner.

B 4 #i4 small 0) W combinations Unlike when the sequence control table is A3 size, the above N 3,
In place of N13, N5tN15 is used to perform a rotation operation.

(Effects) The present invention is as described above, and according to the present invention, the ROM answer h1 can be extremely reduced, and the RAM
The number of 8 digits does not increase because it is sufficient to store only the sequence control table of the selected copying program.

Moreover, it is possible to perform control over eight different models using the same diskette, and it also has the advantage that modifications to the copying program due to design changes can be executed in a short period of time.

[Brief explanation of the drawing]

24￥1 Figure is a control block diagram according to the present invention, Figure 2 is a flowchart showing part of the same operation, Fj)' Figure 3 is an operation flowchart according to the conventional method, and Figure 4 is a sequence control according to the present invention. It shows a table. l...Micro CPU, 4...Floppy disk, 5...RAM. 1st vA Figure 2 3rd v! J Figure 4 Brain tumor 5■

Claims (1)

[Claims] A micro CPU is used to count the ie pulses of pulse generation and loading, and the sequence control table is created based on the counted value, and the sequence control table and its execution routine are used in the copying machine. Transfer the sequence control table for the RAMK basic mode for stored program storage from the floppy disk that was created, and when changing the copy mode,
A copying machine control system characterized in that the sequence control table is replaced with a sequence control table corresponding to the mode, and the execution routine executed using the sequence control table is stored in a storage element (ROM).