JPH03259164A - Controller for copying machine - Google Patents

Abstract

PURPOSE:To improve mode setting operability by providing a control means carrying out control such that an automatic magnification selecting mode is set when only a casette selecting key is operated and both automatic paper selecting mode and automatic magnification selecting mode are cancelled when both keys are operated. CONSTITUTION:A copying machine is provided with a CPU 1 carrying out control such that the automatic paper selecting mode is set when only a magnification selecting key 46 is operated among the casette selecting key 45 and the magnification selecting key 46 or both key are not operated, the automatic magnification selecting mode is set when the casette selecting key 45 is operated, and both automatic paper selecting mode and automatic magnification selecting mode are cancelled when both keys are operated. Other manual setting, the CPU 1 carries out the automatic setting/cancellation of the automatic paper selecting mode and automatic magnification selecting mode being interlocked with the selection of the magnification and a paper feeding port. Thus, operability at the time of executing each mode can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control device for a copying machine having an automatic paper selection (APS) mode and an automatic magnification selection (AMS) mode. This invention relates to a control device for a certain copying machine.

[Conventional technology]

The automatic paper selection mode selects paper according to four original sizes and magnifications. Specifically, one of a plurality of paper feed cassettes or paper feed trays storing sheets of a predetermined size is selected, in other words, paper feed operation is enabled.

The automatic magnification selection mode automatically selects a magnification determined from the selected paper size and the set document size.

Conventionally, in order to set each mode of automatic paper selection and automatic magnification selection, keys are provided to set the modes, and the settings are manually performed.

[Problem to be solved by the invention]

In the above conventional technology, it is necessary to manually turn on one of the two modes or turn off both modes, and then select the magnification, paper feed port (paper feed cassette or paper feed tray), etc. However, there was a drawback that the operation was complicated.

Also, by setting the automatic paper selection mode to standard mode, the automatic paper selection mode may be automatically set when the power is turned on or when the standard mode is set, but once it is canceled, the automatic paper selection mode must be reset manually. Must.

Furthermore, by manually selecting the automatic paper selection mode and at the same time forcing the magnification back to 1x, the combination of 1x and 1x that is most commonly used is set. However, in this case, if the automatic paper selection mode is selected after setting the magnification, there is a problem that the magnification returns to the same magnification.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art described above and to improve the repeatability of mode settings.

[Means to solve the problem]

The above purpose is to provide a control device for a copying machine that has an automatic paper selection mode and an automatic magnification selection mode.
Or, if neither key is operated, automatic paper selection mode will be activated; if only the cassette selection key is operated, automatic magnification selection mode will be activated; if either key is operated, automatic paper selection mode and automatic magnification selection mode will be canceled. This is achieved by providing a control means for controlling the

[Effect]

The control means switches to automatic paper selection mode when only the magnification selection key of the cassette selection key and magnification selection key is operated, or when neither key is operated, and to automatic magnification selection mode when only the cassette selection key is operated. , the automatic paper selection mode and the automatic magnification selection mode are both canceled when any of the keys is operated.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a schematic diagram of a copying machine according to an embodiment of the present invention, in which an ADF 22 is mounted on a copying machine main body 21. As shown in FIG.

The ADF 22 is composed of a document setting section 23, a paper feed roller 24, a transport belt 25, a document output tray 26, etc. When a document is placed on the document setting section 23 and inserted into the ADF 22, the document setting detection sensor 27 detects the document. It is now possible to detect when the is set. At the start of printing, the set original is set on the contact glass 28 at the top of the main body 21 by the paper feed roller 24, the conveyance belt 25, etc., and after exposure is completed, it is ejected onto the paper ejection tray 26.

In the process of feeding the original from the setting section 23, the passage time is measured by a reference sensor 29 located in the conveyance path, and the size of the original is detected based on this time. Further, this ADF 22 is provided so that the entire ADF 22 can be opened and closed on the contact glass 28 with one side as an axis, and also serves as a document holding plate (pressing plate) when a document is manually set on the contact glass 28. . In addition, when the ADF 22 is opened, the "open signal"
It has an open detection means (not shown) for obtaining the .

The copying machine main body 21 has a three-stage paper feed section 30.3 on one side thereof.
1. ．． It has 32. Also, around the photoreceptor 33,
A well-known image forming process unit is arranged, and the paper onto which the toner image formed on the photoreceptor 33 has been transferred is finally discharged to a paper discharge tray 34 or a sorter 35.

FIG. 3 is a plan view of the operation panel provided on the front side of the copying machine main body 21, in which 40 is a print key 41 is an interrupt key, 42 is a mode clear key 43 is a numeric keypad, 44 is a density key, 45 is a cassette selection key 46 is the magnification key 4
7 is a double-sided key, and 48 is a sorter key. Further, 49 is a sheet number display, 50 is an abnormality display, 51 is an automatic paper selection mode display, and 52 is an automatic magnification selection mode display.

FIG. 1 is a control block diagram according to an embodiment of the present invention, in which 1 is a CPU as a control means, 2 is a RAM, and 3 is an R
OM, 4.5 is I10 port, 6 is driver, 7 is 3rd
The display element group of the operation panel shown in the figure (number of sheets display 49, abnormality display 50, etc.), 8 is a key switch group of the operation panel (print key 40, interrupt key 41, etc.), 9 is a sensor group, 10 is a pulse oscillator, 11 is a buffer.

Next, the contents of this CPU program will be explained based on flowchart 1 shown in FIG. 4 and below.

FIG. 4 shows the overall control flowchart 1, which includes power-on initialization (Sl), print preprocessing (S2i, ″: JB preprocessing (S3), copy processing (S4), and copy end processing (S5).
) etc.

Figure 5 is a detailed flowchart of power-on initialization, which includes initialization of the CPU 1 (Sll), including working register settings, I10 boat settings, RAM clearing, etc., followed by copy number setting (S12>, magnification setting (S13), paper feed [ ” setting (S1
4), density setting (S15) and APS mode on (S15)
Initial settings for various copy modes such as 16) are made.

Figure 6 is a detailed flowchart of print pre-processing.
Input/output processing (S21), setting the copy mode according to the user's needs ■Mode setting processing (S22)
, abnormality check (S23), print preparation process to enable copying operation (S24), abnormality processing in case of abnormality (S25), print condition check (S2
6), print start check (S27), etc. are executed.

FIG. 7 is a detailed flowchart 1 of the mode setting process, including the paper feed port selection process (531) and the magnification selection process (S32).
, -E-card selection processing (S33), sheet number setting processing (S34)
), density selection processing (S35), etc. Various modes are set using the operation panel's 2 and 1 keys.

FIG. 8 is a detailed flowchart of the paper feed port selection process,
If the cassette selection key 45 is pressed manually (S41
, 542), paper feed L1 selection process, that is, one of the paper feed units 30, 31, and 32 in FIG. 2 is selected (S
43). Next, after turning off the memory flag (S44), check whether this paper is a valid size for automatic magnification selection (AMS).
In other words, the copying machine determines whether it is possible to set the magnification calculated from the selected paper size and the set original size (34, 5), and turns on the valid flag if A, MS is a valid size. (346).

FIG. 9 is a detailed flowchart 1 of the magnification selection process,
Similarly to FIG. 8, the magnification key is turned on (551S52) and magnification selection processing is performed (S53). After turning off the memory flag (S54), the APS valid flag is turned on (S54.).
S55).

FIG. 10 is a flowchart 1- related to the main part of the present invention, and the AMS/
Automatic paper selection (APS
S) mode, the automatic magnification selection (AMS) mode is controlled and activated. When the APS mode is turned on, the automatic paper selection mode display 51 on the operation panel lights up, and paper is selected according to the original size and magnification. When the AMS mode is turned on, the AMS mode display lights up and the magnification is set according to the document size and paper size.

1) When the power is turned on, the paper feed port is set to the third paper feed port (paper feed tray 32), and the magnification is set to equal magnification. If the user does not specifically change the settings for the above two modes, the AMS/APS valid flags remain off (N in S61, N in 362, S
63 (N), APS mode on (S 64.) % A
The MS mode is turned off (S65), and the automatic paper selection mode is entered.

2) When selecting paper source For example, if you want to copy an A3 portrait document onto A4 portrait paper, select the first paper feed port (paper feed cassette 30) in which the A4 portrait cassette is installed as the paper feed port. The AMS enable flag is turned on (Y in S61), the APS mode is therefore turned off (N in S66, 567), and the AMS mode is turned on (S68).・In other words, when you select the paper, the corresponding magnification is automatically selected.

3) When selecting the magnification For example, when copying in the same magnification mode after copying from the magnification selection Q at the same magnification, or when copying at an arbitrary magnification, when operating the magnification key 46 A
The PS valid flag is turned on (Y in S62), so the AM
Turn off S mode and turn on APS mode (S64
．． 565).

In other words, an operation for selecting a magnification automatically selects paper according to the magnification.

4) When selecting both modes For example, if you want to copy a part of an A4 portrait document onto A4 portrait paper in a slightly larger size (110%), you will need to select both paper feed and magnification modes. In this case, both key flags are on (Y in S61, Y in S66)
, both APS mode and AMS mode are turned off (S69.
570), therefore, both the selected paper feed port and magnification are maintained.

The APS/AMS valid flag set by key operation is turned off at the start of printing, and the simultaneous memory flag is turned on so that the print mode can be set after copying is completed. In other words, in order to copy in the first mode in automatic magnification mode with paper source selection, and then return to the same size for the next copy and switch to automatic paper selection mode, the AMS enable flag of the previous mode must be turned off. There is. Also, a memory flag is required to maintain the automatic magnification selection mode for the next copy.

Furthermore, as a result of selecting the paper feed port in FIG. 8, it is checked whether the selected paper feed port size is a valid size for automatic magnification, and if it is outside the valid size, the AMS valid flag is not set. . This is enabled when the original and paper size combinations for automatic scaling are as shown in the table below.

In other words, the paper size of the selected paper feed port is A3 portrait, B4
The AMS valid flag is turned on when the paper is portrait or A4 portrait, but the flag is not turned on at other times. Therefore, after copying in the automatic magnification selection mode, if a paper feed port other than the AMS effective size is selected, the automatic magnification selection mode is automatically canceled and the automatic paper selection mode is set.

Generally, the size of the contact glass on which the original is set is A.
3 vertical size, therefore, the AMS effective size uses the vertical size, but on the other hand, the size with the highest usage rate is the A4 size. When copying A4 size paper, horizontal size paper is faster than portrait size, so A4 landscape size paper is stored in the first priority selection paper feed slot when the power is turned on, when mode is cleared, etc. The paper feed slot is now selected.

From the above, when the power is turned on, A4 landscape size paper is selected and the automatic paper selection mode is set at the same time, but - after changing the paper feed slot and setting the automatic magnification selection mode, the original size is changed. If it is the same as the paper size, it remains the same size, but if A4 landscape size paper is selected after copying is completed, the combination of the same size and automatic paper selection mode, which has the highest usage rate, is reset.

FIG. 11 is a detailed flowchart of copy preprocessing,
Initial settings (S81), transfer paper feeding (S82), developer supply (S83), document feeding (S84), etc. are executed.

Figure 12 is a detailed flowchart of initial settings, including memory flag on (391), APS enable flag off (S
92), AMS valid flag off (S93), main motor on (S94), copy counter clear (S95)
, copy permission display off (S96), etc. are executed.

〔Effect of the invention〕

As described above, according to the present invention, in addition to manual settings, the automatic paper selection mode and automatic magnification selection mode are automatically set and canceled in conjunction with the selection of the magnification and paper feed port. Improved operability when executing each T-F-F-S1!
can be done.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a control device for a copying machine according to an embodiment of the present invention. Fig. 2 is an overall configuration diagram of the copying machine, and Fig. 3 is a plan view of the operation panel. FIG. 4, FIG. 5, FIG. 6, FIG. 7, FIG. 8, FIG. 9, FIG. 10, FIG. 11, and FIG. 12 are flowcharts showing the control contents of the present invention. 1... CPU, 21... Copying machine main body, 22... Automatic document feeder, 30, 31. 32... Paper feeding unit, 45
...Cassette selection key 46...Magnification key jIj Fig. 14 Fig. JI 6 Fig. To copy process Fig. 7 Fig. 9 Fig. 8 Fig. 811 Fig. 12

Claims (1)

[Claims] In a copying machine control device that has an automatic paper selection mode and an automatic magnification selection mode, if only the magnification selection key of the cassette selection key and the magnification selection key is operated, or if both keys are not operated, the automatic paper selection mode is activated. The apparatus is characterized by comprising a control means for controlling such that when only the cassette selection key is operated, the automatic magnification selection mode is set, and when any key is operated, the automatic paper selection mode and the automatic magnification selection mode are both canceled. Copy machine control device.