JPS63287973A - Copying machine having magnification selecting function - Google Patents

Abstract

PURPOSE:To facilitate magnification setting by constituting the titled machine in such a manner that the max. enlargement magnification is set when an enlargement key and enlargement zoom key are simultaneously operated and the max. reduction magnification is set when a reduction key and reduction zoom key are simultaneously operated. CONSTITUTION:The set magnification X by the enlargement key 16 and comparison magnifications 1.15-1.41 are successively compared when said key is operated. The magnifications are then set 1.15-1.41 times respectively and are stored in a memory if said magnifications are exceeded. The set magnification is displayed on the display part 13 of the display panel 11. On the other hand, the magnification is set at the max. enlargement magnification 1.42 when the enlargement zoom key 19 is simultaneously operated. This magnification is stored in the memory and is displayed on a display part 13. The set magnification X is similarly compared successively with the reduction magnifications 0.86-0.70 times when the reduction key 18 is operated. The respective magnifications are set according to the results thereof, then these magnifications are stored in the memory and are displayed 13. The magnification is set at the max. reduction magnification 0.64 times when the reduction zoom key is simultaneously operated. This magnification is stored in the memory M and is displayed 13.

Description

Detailed Description of the Invention (8) Industrial Application Field The present invention provides a copying machine having a magnification selection function capable of forming an enlarged 2wl small image according to the enlargement magnification and reduction magnification set by key operation. Regarding.

(BL Conventional Technology) In a copying machine that is capable of copying a document image at any magnification within a predetermined range, a conventional magnification setting means sets a predetermined value each time an enlargement key or reduction key is operated. The image is set to be enlarged or reduced one step at a time according to the magnification factor set, and the image is set to be enlarged or reduced by 0.01 times each time the enlargement zoom key or reduction zoom key is operated.

As the predetermined magnification, for example, enlargement from B5 size to A4 size, reduction from A3 size to A'4 size, conversion magnification from a specified size to a specified size, etc. are generally stored. Ta.

(C1 Problem to be Solved by the Invention) However, in the conventional magnification setting means, the predetermined magnification is sequentially called up each time the enlargement key or the reduction key is operated. When setting the minimum reduction magnification, the enlargement key, enlargement zoom key, reduction key, and reduction zoom key must be operated multiple times, which is troublesome and time-consuming.

Note that some copying machines change the magnification continuously by continuously operating (pressing) a key, but even with such machines, to set the maximum enlargement or reduction magnification, you must hold down the key during that time. It has the drawback that it requires continuous operation, which is cumbersome and time-consuming.

Therefore, this invention provides a method for sequentially calling up the magnification factors in the conventional method.
To provide a copying machine having a magnification selection function that can easily set the maximum magnification magnification and maximum reduction magnification by adding means for calling and setting the maximum magnification magnification and maximum reduction magnification with a single operation. With the goal.

(Means for Solving Problem d1) This invention provides an enlargement key and a reduction key, means for sequentially calling and setting predetermined enlargement and reduction ratios by operating these keys, and an enlargement and reduction key. , means for enlarging and reducing the magnification in a predetermined minimum magnification conversion unit by operating these keys; The present invention is characterized by comprising means for setting the magnification to the maximum magnification when the reduction key and the reduction zoom key are operated at the same time.

(e) Function In the copying machine having the magnification selection function of the present invention, when the enlargement key or reduction key is operated, a predetermined enlargement or reduction ratio is called up and set, and the enlargement zoom key or reduction zoom key is operated. When it is set, the magnification is enlarged or reduced in a predetermined minimum magnification conversion unit (for example, 0.01 times). Further, when the enlargement key and the enlargement zoom key are operated at the same time, the maximum enlargement magnification is immediately set, and when the reduction key and the reduction zoom key are operated at the same time, the maximum reduction magnification is immediately set.

('') Embodiment FIG. 2 is a diagram showing a schematic configuration of a copying machine which is an embodiment of the present invention.

A drum-shaped photoreceptor 2 is arranged approximately in the center of the copying machine main body 1, and an image forming device including a charger, a developer, etc. is arranged around it. A transparent document table 3 is provided on the top surface of the copying machine main body 1, and a light source 4, first to fourth mirrors 5 to 8, and a lens 9 are provided below the document table 3.

The light source 4 and the first mirror 5 move in the horizontal direction in the figure along the document table 3 and scan the document placed on the document table 3. The reflected light from the original is transmitted to the first to third mirrors 5 to 7 and the lens 9. The light is irradiated onto the photoreceptor 2 through the fourth mirror 8, and an image is formed at the exposure point of the photoreceptor 2. By moving the lens 9 and the fourth mirror 8 in the left and right directions in the figure, the magnification of the image formed on the photoreceptor 2 is changed.

FIG. 3 is a plan view of the operating section on the main body 1 of the copying machine.

The operation section consists of a display panel 11 and an operation panel 12.
The display panel 11 includes a magnification display section 13. Paper size display section 14. A density display section 15 and the like are provided, and display the set magnification, paper size, R1 degree, etc., respectively. The operation panel 12 also includes an enlargement key 161, a same size key 17. Reduce key 18. Enlarge zoom key 19. Keys for setting magnification such as a reduction zoom key 20, a paper cassette selection key 21 for selecting paper size, density setting keys 22, 23, 24, a print switch 25, etc. are provided.

FIG. 4 is a block diagram of the control section of the copying machine. Overall control is performed by a CPU 30, and its processing program is stored in a ROM 31 in advance. When executing the program, the RAM 32 is used as a working area. Enlarge key 1 is sent to the CPU 30 via l1033.
6. Input keys 1 of the operation panel 12 such as the same magnification key 17.1 magnification display section 13. Display panel 11 such as paper size display section 14
display section, and lens 9. Each copy processing device such as a charger is connected. The RAM 32 is provided with a memory M that stores a set magnification X set by operating a magnification setting key such as the enlargement key 16.

In addition, in this embodiment, three types of magnifications are set for each operation of the enlargement key or reduction key for both enlargement and reduction, and in the case of enlargement magnification, as shown in FIG. 5(A), It is converted cyclically to 1.15 times, 1°22 times, and 1.41 times, and in the case of reduction magnification, it is 0.86 times, 0.81 times, and 0.70 times as shown in the same figure (B). It is circularly converted twice. Furthermore, enlarge zoom key 19. The minimum magnification conversion unit to be enlarged or reduced each time the reduction zoom key 20 is operated is 0.01 times, the maximum enlargement magnification is 1642 times, and the maximum reduction magnification is 0.64 times. Note that these values may be arbitrary values.

FIG. 1 is a flowchart of a processing program stored in the ROM 31.

First, when the copying machine main body 1 is powered on, the memory is cleared and each copy processing device is warmed up at step 01. When the warm-up is completed, the input keys and sensors are read in 02, and the system waits until some input is determined in n3. Then, the following processing corresponding to the determination is performed.

If the enlargement key 16 of the operation panel 12 is operated, it is determined at step n4, and the operation state of the enlargement zoom key 19 is determined at step n5. If the enlargement zoom key 19 is not operated, that is, if only the enlargement key 16 is operated, the set magnification X stored in the memory M at that time is compared with the comparison magnification 1.15 times at n6. do. If the set magnification X is 1.15x or more, proceed to n7 and set it to 1.22.
If it is 1.22 times or more, proceed to n8 and compare it with 1.41 times. In n6 to n8, if each comparison magnification exceeds the set magnification X,
1.15 times, 1.22 times, 1 for n9 to nil, respectively
．． Set the set magnification X to 41 times and store it in the memory M.

Note that if it is determined at n8 that the set magnification X is 1.41 times or more, the set magnification X is set to 1.15 times and stored in the memory M at n9. This results in Figure 5 (
As shown in A), it cycles between three types of magnification. Thereafter, at n30, the set magnification X stored in the memory M is displayed on the magnification display section 13 of the display panel 11, and
At n31, the lens 9 is placed at a position corresponding to the set magnification X, and the process returns to n2.

If it is determined in n5 that the enlargement zoom key 19 is being operated, that is, if the enlargement key 16 and the enlargement zoom key 19 are being operated at the same time, the process proceeds to n12, where the set magnification X is changed to 1, which is the maximum magnification magnification. Set 42 times and store it in memory M.

And n30. After displaying the magnification and setting the lens at n31, the process returns to n2.

If you operate the enlargement zoom key 19 on the operation panel 12, n1
This is determined at step 3, and the process proceeds to n14, where the operating state of the enlargement key 16 is determined. If the enlargement key 16 is operated at the same time, set magnification X is set to the maximum enlargement factor 1.42 in n12, and if only the enlargement zoom key 19 is operated, n15 is set.
Then, a magnification obtained by increasing the set magnification X by 0.01 times is stored in the memory M as the set magnification X. Then, at steps n30 and n31, the display and lens setting are performed, and the process returns to n2.

Enlargement key 16 explained above. Similar to when the enlargement zoom key 19 is operated, when the operation of the reduction key 18 is determined in n16, the operating state of the reduction zoom key is determined in n17, and it is determined whether the reduction key 18 and the reduction zoom key 20 are operated at the same time. If not, the predetermined reduction magnifications of 0.86 times, 0.81 times, and 0.70 times are compared at n18 to n20 with the set magnification X at that time. Depending on the result, set magnification X is 0.86 times in n21 to n23.

After setting the magnifications of 0.81x and 0.70x and storing them in the memory M, n30. At n31, the set magnification is displayed and the lens is set, and the process returns to n2.

When the reduction key 1B and the reduction key 20 are operated at the same time, this is determined at n17, and the maximum reduction magnification of 0.64x is set as the set magnification X at n24, and the maximum reduction magnification is set at n24.
30. At n31, the set magnification is displayed and the lens is set, and the process returns to n2.

Further, when the reduction zoom key 20 is operated, this is determined at n25, and the operating state of the reduction key is determined at n26. ! ii When the small zoom key 20 and the reduction key 18 are operated at the same time, the process advances to n24 and the maximum reduction magnification is set to the set magnification X as described above, but the reduction zoom key 2
When only 0 is operated, set magnification X is set to 0.
Set the magnification reduced by 01 times as the set magnification X to the memory M.
to be memorized. Then, in steps n30 and n31, the display and lens centration are performed, and the process returns to n2.

Furthermore, when the same magnification key 17 is operated, this is determined at n26, the set magnification X is set to 1,00 times the same size at n27, and the display and lens setting are performed at n30 and n3t. do.

The magnification is set as described above, and the lens is centered according to the magnification. After that, when the print switch 25 is operated, copy processing is performed at the set magnification (lens position).

From what has been explained above, for example, when setting the maximum magnification when the set magnification The maximum magnification is set immediately, but in the case of a conventional device, operate the magnification key 16 three times to set it to 1.41x, then operate the magnification zoom key once to set it to 1.42x. In other words, according to the device of this embodiment, the number of operations is 3.
The amount will be less.

(g) Effects of the Invention According to the copying machine of the present invention, the maximum enlargement magnification or the maximum reduction magnification is immediately set by operating the enlargement key and the enlargement zoom key or the reduction key and the reduction zoom key simultaneously. There is an advantage that there is no need to operate the enlargement zoom key, reduction key, or reduction zoom key many times, and settings can be made quickly.

[Brief explanation of the drawing]

Fig. 1 is a flowchart showing a processing program of a copying machine which is an embodiment of the present invention, Fig. 2 is a schematic configuration diagram of the copying machine, Fig. 3 is a plan view of the operation section, and Fig. 4 is a diagram of the control section. It is a block diagram, and FIGS. 5(A) and 5(B) are diagrams showing predetermined enlargement magnification and reduction magnification. 16-enlargement key, 18-reduction key, 19-enlargement zoom key, 20-reduction zoom key.

Claims (1)

[Claims] (1) An enlargement key and a reduction key, a means for successively calling and setting the enlargement and reduction ratios predetermined by operating these keys, and an enlargement zoom key and reduction zoom key, and In a copying machine having a magnification selection function, the copying machine includes means for enlarging and reducing the magnification in minimum magnification conversion units, and means for setting the magnification to the maximum magnification when the magnification key and the magnification zoom key are operated simultaneously. and means for setting a magnification to a maximum reduction magnification when the reduction key and the reduction zoom key are operated at the same time.