JP2686083B2 - Copier with automatic magnification setting function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to a paper size on which a copy image is to be formed,
The present invention relates to a copying machine that automatically sets the copy magnification based on the size of a document. (B) Conventional Technology Some copying machines that use electrophotography can change the copying magnification by moving the lens of an optical system, etc.
By inputting a desired copy magnification from the operation panel, copying is performed at that magnification. Among the copy magnifications, in particular, the magnification of a document of a specified size is often converted to a paper of another specified size. Conventionally, in order to simplify the input operation of the copy magnification from a frequently used regular size to another regular size, a memory in which a regular size corresponding to the paper size is stored in advance, and an original size sensor for detecting the original size , And sequentially calls the paper size stored in the memory each time the call key provided on the operation panel is operated, and determines the copy magnification from the document size detected by the document size sensor and the called paper size. There was one that was calculated and set automatically. As a result, it is possible to automatically set the copy magnification simply by setting the original on the original table and calling the desired paper size with the call key. (C) Problems to be Solved by the Invention However, in the conventional copying machine, the paper sizes stored in the memory are always called in the same order, for example, A3 → B4 → A4 → B5. , For example, if you want to convert the magnification to B5 size paper and copy it, A3 → B4
→ A4 → B5, the desired paper size cannot be called unless four key operations are performed, and the number of operations increases, which increases the burden on the operator. Therefore, according to the present invention, when a sheet on which a copy image is to be formed is set, the sheet size of the sheet is written in the memory,
An object of the present invention is to provide a copying machine having a magnification automatic setting function that can reduce the operator's time and effort of key operations by giving priority to the paper size. (D) Means for Solving the Problems A copying machine for achieving the above-mentioned object of the present invention includes a preferential paper size memory for sequentially storing a plurality of paper sizes to be called preferentially, and a paper feeding device. In addition to detecting the paper size to be set, the paper size is detected and the paper size is written in the memory, and the priority order of the paper size is set in the order in which the sheets are set to be fed later. Priority setting means for setting, paper size calling means for sequentially calling paper sizes based on the priority, automatic magnification setting key for selecting a mode for automatically setting the copy magnification, and automatic magnification by the automatic magnification setting key And a calculating means for obtaining a copy magnification from the preferential paper size sequentially called by the paper size call key and the original size for copying in the magnification mode. Characterized by comprising a. (E) Operation According to the copying machine of the present invention, when the fed paper is set in the paper feed unit, the set paper size is detected together, and the detected paper size stores the preferential paper size. Is written to memory. In this case, the paper size set last in the paper feed unit is sequentially called in accordance with the operation of the call key so that the priority order becomes first. Therefore, if the automatic magnification setting mode is selected by the automatic magnification setting key, the copy magnification is obtained by the sheet size and the copy original size that are preferentially called by the calling key.
As a result, when the copying is started at the time when the desired preferential paper size is called, the magnification at that time can be automatically set and the copying operation at that magnification can be started. Therefore, it is possible to simplify the operation of calling a desired paper size and simultaneously reduce the burden on the operator and the magnification setting work. Therefore, if the number of sheets to be loaded with paper is stored in the memory preferentially, the size of paper that can be fed is quickly called up without changing the paper and the paper is fed as it is. Since paper can be used, the burden on the operator can be further reduced. (F) Embodiment FIG. 1 is a block diagram of a copying machine which is an embodiment of a copying machine having an automatic magnification setting function of the present invention. A process device including a photoconductor 11, a developing device 12 and the like is provided in a substantially central portion of the copying machine main body 1, and a paper feed tray is provided in a right portion.
13,14,15 are provided. A paper cassette can be attached to and detached from the paper feed trays 14 and 15 (in the figure, it is shown mounted), and the paper cassette accommodates paper of a specified size. For example, A3, B
There are four types of paper cassettes that store paper of each size of 4, A4, B5, and if one of the paper cassettes is installed in either of the paper feed trays 14 and 15, the set of papers will be performed. Complete. Different types of markings are attached to the front of each paper cassette.
The marking is read by the paper size sensor provided in the paper, and the paper size is detected. The paper feed tray 13 is a tray for manual feeding, and when the paper guide is moved according to the paper to be set, the paper guide position is read by the paper size sensor and the paper size is detected. A manuscript table 16 is provided on the upper surface of the copying machine body 1.
The document on 16 is scanned by the optical system 17, and the reflected light exposes the photoconductor 11. The document table 16 is provided with a document size sensor that detects the size of the document placed. Also,
This copier is equipped with an automatic document feeder (ADF),
When a document is set on the document tray 18, it will be automatically fed. When the document is set on the document tray 18 and the document guide is aligned with the document, the document guide position is read by the document size sensor and the document size is detected. When using the ADF, the document size cannot be read on the document table 16. The entire control of this copying machine is performed by the CPU 2, and its processing program is stored in the ROM 21 in advance. The RAM 22 is used as a working area when executing this program. The CPU2 inputs detection data of each detector such as a paper size sensor and a document size sensor via the I / O23, and the CPU2 inputs the optical system control unit 24 ... the paper feed control unit 25 via the I / O23. Control data is output to each control unit, and the copying process is performed according to the control data.
Further, the CPU 2 inputs / outputs data from / to the operation panel 3 on the copying machine main body 1 via the I / O 24. The operation panel 3 includes a display unit 3a and an operation unit 3b. The operation unit 3b is provided with keys for inputting copy conditions such as a magnification automatic setting mode key 31, a paper size call key 32, a cassette selection key 33, etc., and the display unit 3a is provided with input data from these keys. The detection data displayed by the paper size sensor, the document size sensor, etc. are displayed. The size of the original placed on the platen 16 or the original tray 18 is displayed in the display area 33, and the paper size called by the paper size call key is displayed in the display area 34.
The paper sizes of the papers set in the paper feed trays 13, 14, and 15 are displayed in the display area 35, and the copy magnification is displayed in the display area 35. FIG. 2 is a memory map of the RAM 22. Area M1 ~ M7
Is an area for storing the paper size, and area M8 is an area for storing the document size. Prescribed paper sizes are stored in advance in the areas M4 to M7, and the paper sizes of the papers set in the paper feed trays 13 to 15 are written in the areas M1 to M3 as priority paper sizes. Areas M1 to M3 are stored in M1, M2, and M3 in order from the size of the newly set paper. Further, for example, when paper is set only in the two paper feed trays 14 and 15, the paper size is stored only in the areas M1 and M2, and the area M3 is blank. 3 and 4 are flowcharts showing the processing programs stored in the ROM 21. When the power of the copying machine body 1 is turned on, the memory is initialized and warmed up at n1. When the warm-up is completed, key input or reading of a sensor or the like is performed at n2, and if any input is determined at n3, the process corresponding to the input is performed below. If the input is the document size sensor of the document table 16 or the document tray 18, it is determined in n4, the document size is written in the memory area M8 in n5, and the display area is displayed in n6.
Display on 34. If it is a paper size sensor for the paper feed trays 13, 14, 15 then it is determined in n7 and the paper size is written in the memory area M1 in n8 and the paper size of the previously set paper is set. Move to areas M2 and M3. At n9, the paper sizes on the paper feed trays 13, 14, 15 are displayed in the display areas 35a, 35b, 35c. It should be noted that the display area corresponding to the paper feed tray in which no paper is set is blank. If the automatic magnification setting mode key 31 is operated, it is determined in n10. The flag F indicates the set state of the automatic magnification setting mode, the set state of the flag F is discriminated at n11, and if it is set, it is reset at n12, and if it is reset, it is set at n13. When the paper size call key 32 is operated, it is determined in n14, and the set state of the flag F is determined in n15.
If the flag F is in the reset state, it returns to n2 as it is,
In the set state, that is, in the automatic magnification setting mode, the process proceeds to n16 and 1 is added to X. This X is the memory area MX (X
= 1 to 7). If X is 8 in n17, set 1; otherwise, proceed to n19. The document size stored in area M8 at n19,
The magnification is calculated from the paper size stored in the area MX, and the magnification calculated in n20 and the paper size stored in MX are displayed in the display areas 36 and 34, respectively. As a result, the paper sizes stored in the memory areas M1 to M7 are sequentially called and displayed, and
The copy magnification is displayed. At the time of copying, copy processing is performed at the copy magnification displayed in the display area 36. If there is a blank area among the memory areas M1 to M3, the process advances to the next area and calls the paper size of the next area. When the print key is operated in n21, copy processing is performed with the copy magnification, paper, etc. set in n22, and when the copy processing is completed, X is set to 0 in n23. Therefore, when the paper size call key 32 is operated next time, the paper sizes stored in the area M1 are called in sequence. In this way, the paper size stored in areas M4 to M7 of the memory has priority over the paper size written in areas M1 to M3, and the paper size of the paper loaded in the paper feed tray is called. Can be called quickly.
In this embodiment, of the three paper feed trays, the paper size of the newly set paper is preferentially called up. For example, the cassette selection key 37 (see FIG. 1) is the paper feed tray 13 , 14 or 15 and may be called by giving priority to the paper size of the paper of the paper feed tray selected by the cassette selection key 37. Further, although three sheet feeding trays are provided in this embodiment, the number may be any number. In this embodiment, the means for writing as the preferential paper size is represented by the step n8, and the paper size calling means is represented by the steps n23 and n16. (G) Effect of the Invention According to the copying machine of the present invention, the paper size that can be fed can be preferentially called, and the magnification is automatically set based on this and the copy original size. It will be easier and the burden on the operator can be reduced. Since the priority order of calling the paper size changes each time the paper is set, the burden of the operator calling the paper size can be reduced. In particular, by storing the same number of preferential paper sizes as the paper feeding section, it is possible to preferentially call up paper of a size that can be fed, and this allows the operator to set the magnification and perform the paper feeding operation. Can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a copying machine which is an embodiment of a copying machine having a magnification automatic setting function of the present invention, FIG. 2 is a memory map of the copying machine, and FIGS. The figure is a flow chart showing a processing program of the copying machine. 13,14,15 …… Paper tray, 32 …… Paper size call key,
33 …… (Original size) display area, 34 …… (Paper size) display area.

Continuation of front page    (56) References JP-A-57-13462 (JP, A)                 JP 60-52438 (JP, A)                 Japanese Patent Laid-Open No. 61-27843 (JP, A)                 JP 64-68772 (JP, A)                 JP-A-57-185055 (JP, A)                 JP 58-17031 (JP, A)                 JP 54-126042 (JP, A)                 Japanese Patent Laid-Open No. 59-146043 (JP, A)                 JP 54-92318 (JP, A)                 62-119328 (JP, U)                 54-90225 (JP, U)

Claims (1)

(57) [Claims] Prioritized paper size memory that sequentially stores multiple paper sizes that are called with priority, and the paper that is set to be fed is detected, and the paper size is detected and that paper size is written to the memory. Paper size writing means, priority setting means for setting paper size priorities in the order in which they are set to be fed later, paper size call key for sequentially calling paper sizes based on the priority, and copying An automatic magnification setting key for selecting a mode for automatically setting the magnification, a priority paper size sequentially called by the paper size calling key in the automatic magnification mode by the automatic magnification setting key, and a document to be copied. A copying machine having an automatic magnification setting function, characterized in that the copying machine is provided with a calculating means for obtaining a copying magnification from the size. 2. The copy having the automatic magnification setting function according to claim 1, wherein the priority paper size memory has an area for storing the same number of priority paper sizes as the number of paper feed units for feeding paper. Machine.