JPS59123858A - Image forming apparatus - Google Patents

Abstract

PURPOSE:To enable a desired operation without especially pushing an interrupting key or selecting an interrupting mode by memorizing an image forming mode before at least one cycle and recalling it when necessary, in a copying machine forming an image in accordance with a mode stored in a memory. CONSTITUTION:Copying conditions set with each functional key are stored first in a current buffer 502, a copying program sequence progresses jobs by directly using these data, and executes the end processing at the end of copying or at the time of suspension instructed by pushing a stop key, and the contents of a contemporary buffer 501 are transferred to a recall buffer 503, and the contents of the buffer 502 storing the copying conditions at this point of time are transferred to 501. Therefore, 501 always stores the last conditions, and 503 always stores those preceding to the last cycle. When a recall key is pushed at this time, the contents of 503 are transferred to 502, and the copying mode before one cycle is recalled and set.

Description

TECHNICAL FIELD The present invention relates to an image forming apparatus that forms an image according to an image forming mode stored in a memory.

BACKGROUND OF THE INVENTION Many proposals have been made regarding the storage and restoration of image forming modes, but for example, in multifunctional image forming apparatuses, complicated setting input means are required. In other words, it was necessary to press an interrupt key or the like to input a new desired image forming mode. In addition, in order to cancel interrupt mode, the interrupt mode cancel key is only activated by automatic return according to the cancellation condition, and the user must always set the interrupt mode or be aware of whether or not it is in interrupt mode, making the operation complicated. It had the disadvantage of being.

SUMMARY OF THE INVENTION In view of the above points, it is an object of the present invention to provide an image forming apparatus that can always store the image forming mode of at least one previous cycle and recall it as needed.

Embodiment FIG. 1 is a diagram showing a console panel in a copying machine which is an image forming apparatus to which the present invention is applied.

208 is a color liquid crystal display, 200 is a copy number display, and 209 is a copy density display, which is operated by copy density keys 201 and 210. 202 is a reduction key, 203 is an enlargement/large key, 204 is a deck selection key, 205 is a sorter selection key, 207 is a number clear and copy stop key, 211 is a copy number key, and 212 is a copy start key. . It should be noted that the keys, display, etc. described above are the same as those of the console panel of a conventionally well-known image forming apparatus, so a detailed explanation will be omitted. Further, 206 is a recall key for recalling the image forming mode stored in the image forming mode memory to the image forming mode main memory.

FIG. 2 is a block diagram of a controller in a copying machine to which the present invention is applied. 1 is a keyboard matrix circuit, and 18 is a liquid crystal display (LCD) driven by a driver 19 thereof.

20 is a D/A (digital to analog) converter that converts the output of the output port door into digital to analog;
An analog voltage for controlling the brightness of the exposure lamp 22 is generated. Reference numeral 1 denotes a keyboard matrix circuit that sends out key data in response to the depression of keys on the console panel shown in FIG. be. 4 is an OR gate that is used to generate an interrupt signal no matter which key is pressed.
The logical sum of the key data from the matrix circuit 1 is supplied as an interrupt signal to the input terminal 1 of the interrupt controller.

6.7 is the microcomputer 100 input/output port, and various input sensors 11 such as key column select and abnormality detection sensor
and output actuator 5 are connected.

9 is a basic clock generation IC, the output of which is supplied to the interrupt controller 80 input terminal IRQ. 10 is a control microprocessor (CPU), P-[
)M (read-only memory for programs) 12 performs sequence control operations by executing programs stored in the memory.

15 is a static RAM (RA) used to temporarily store data generated as the program is executed.
M).

16 is a shift register which changes the parallel data supplied from the CPU 10 through the pass line 21 into serial data and sends it to the programmable LCD controller driver 19.

FIG. 6 is a flowchart of control of the copying machine sequence, etc. by the CPU 10 of FIG. 2.

In FIG. 6, in U) of the flowchart, the temperature of the fixing device, the position of the optical system, the rotation of the drum, etc. are controlled from the time the power is turned on until copying is possible, and the auto shut-off etc. are also controlled. The details are omitted.

Below, in (b) of the flowchart, the flowchart shows the preparatory steps from turning on the copy start key 212 in FIG. If it is OK, proceed to flowchart (c). The details are omitted.

In (c) of the flowchart, first, paper is fed, the optical system is controlled, and a predetermined copy mode (single copy) is executed. In this flowchart, the above mode is repeated for each copy. When the execution of the mode for one copy is completed in step (5), the cycle end process of FIG. 4-a is executed in step 5 CYE.
Proceed to ND routine.

The flowchart of the cymD routine is not shown in figure m4-a. Note that when the program of the CPU 10 advances to the CYEND routine, the flowchart (a) in FIG.
In (b) and (c), this is the case when the copy stop key 207 in FIG. 1 is pressed or when the execution of the copy mode ends. In FIG. 4(a), step (1) is a normal copy sequence termination process, which will be explained with reference to FIG. When the above-mentioned work is completed, the process returns to step (I3) of the flowchart (c) of the main routine in FIG.

FIG. 4-b is a flowchart of a CALL routine in which the program of the CPU 10 advances when the recall key 206 of FIG. 1 is pressed. The MCALL routine transfers the contents of the recall buffer to the current buffer,
The main routine in Figure 6 is Busy - Turn. The details will be explained in FIG. 5.

FIG. 5 is a diagram showing a plurality of areas reserved on the RAM of CPU10 for storing copy setting conditions and the flow of data between these areas, and is a diagram showing the 14th structure of the data table. Referring to Figure 4-Child and Figure 4-B below,
Explain the figure.

The current buffer is an area where copy conditions set using the numeric keypad and various function keys are first stored, and the duplication sequence program uses this data as a hot liquid (Read/Write) to proceed with the job. The copy sequence executes a cycle end process depending on whether the specified number of copies have been completed or whether the 8TOP key is pressed during the process. At this time, the contents of the contemporary buffer 501 are transferred to the recall buffer 506,
The contents of the current buffer 502 (the number of sheets to be copied returns to the initial value when copying is completed; the number remains unchanged when the 5TOP key is pressed) is transferred to the contemporary buffer 501.

Therefore, the contemporary buffer 501 contains the most recently completed copy condition, and the recall buffer 506 contains the following:
The previously completed copy conditions are always stored. If the recall key 206 in FIG. 1 is turned ON, the contents of the recall buffer 506 will be transferred to the current buffer 5.
Moved to 02. Therefore, the copy mode from one cycle ago is called up again and set, and copying can be performed using the copy mode from one cycle before. Similarly, if no recall is made, the contents of the recall buffer 503 are erased by cycle end processing, and the contents of 1 contemporary buffer 5[]1 are stored in the recall buffer 503, so that the copy mode of the previous cycle is always memorized. is possible.

In this embodiment, only the copy conditions from one copy cycle ago are stored, but if they are stored while being updated one by one and cyclically retrieved using the recall key, it can also be used for multiple recall.

Effects As explained above, according to the present invention, the image forming mode copy specification conditions of at least one cycle before are automatically stored and can be called up as needed. This has the effect that the user can perform desired operations without being aware of it.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a console panel of a copying machine to which the present invention is applied. FIG. 2 is a block diagram of a controller in a copying machine to which the present invention is applied. FIG. 3 is a control flowchart of the sequence, etc. of the copying machine. Figure 4-a is CYE
A flowchart of the ND routine is shown. Figure 4-b is R
3 is a flowchart of the JDCALI routine. Fifth
The figure shows the packing of data tables on the CPU 10. 207 is clear number and copy tour +-1206
212 is a copy start key, and 10 is a CPU. 501 is a contemporary buffer, 5o2 is a current buffer, and 5113 is a recall buffer. -4:

Claims (1)

[Claims] (1) A main memory means for storing an image forming mode for executing image forming, and a sub memory means for storing an image forming mode of at least one cycle before, and the desired image forming mode stored in the memory is stored. An image forming apparatus characterized by having a recall means for recalling information to a main memory means. C2,) The image forming mode stored in the image forming mode main storage means and the image forming mode storage means includes at least the number of copies, density, use/non-use of sorter, copy size,
The image forming apparatus according to claim 1, wherein the image forming apparatus has one of variable magnification ratios.