JPS61223728A - Copying machine with zoom variable power function - Google Patents

Abstract

PURPOSE:To copy an original to a copying form in its full size by providing a means which sets a longitudinal and a lateral variable power rate automatically when the longitudinal and lateral sizes of the original and a copy size are specified. CONSTITUTION:Input signals of the specification of an original size and the specification of a copy size from a specification input means 20 are read by a reading means 21 and stored. Then, a variable power rate arithmetic means 23 calculates a longitudinal and a lateral variable power rate on the basis of said specified original size and copy size. This variable magnification is supplied to a decision means 24 to decide whether or not the magnification is within the range of minimum reduction or maximum enlargement set in a copying machine. When so, a specific copy is taken through an optical system 29. Consequently, the original is copied to the copying form to its full size.

Description

TECHNICAL FIELD The present invention relates to a copying apparatus having a zoom magnification function, and more particularly to a magnification control device for its optical system.

Conventional technology Recently, as the functions of copying machines have become more sophisticated, there has been a demand for enhanced functionality as manuscript creation machines, and for this reason, many copying machines have been released that are equipped with a zoom magnification function that allows the magnification to be changed continuously. has been done.

In this case, even if the magnification ratio can be finely adjusted, it is impossible to know whether the copied image will have the desired size until it is copied. Therefore, by inputting the original size and the desired copy size manually, the required magnification ratio is calculated, and the optical system is driven and controlled to that magnification ratio! Photographic devices have recently been proposed.

Furthermore, if the required magnification ratio when copying from the original to the desired size exceeds the range of the copying machine, make multiple copies of the copy as the original, calculate the required magnification ratio for each copy, and then A variable magnification copying machine has also been proposed in which the temporary copying optical system is driven and controlled to a variable magnification ratio.

However, with this type of conventional zoom variable magnification copying device, the vertical and horizontal magnification ratios are the same, and when a document of a certain size is
Even if one of the sides is made to match the length of the desired size copy, there is often room for the other side.

Therefore, there is a demand for changing the vertical and horizontal magnification ratios so that a document of a certain size can be copied to fill the space of a desired vertical and horizontal size without leaving any excess space. There is also a demand for copying characters from a document so that they appear vertically or horizontally on the copy.

Purpose In view of the above-mentioned circumstances, the present invention automatically sets the vertical and horizontal scaling ratios by specifying the vertical and horizontal sizes of the original and the copy size. If the value exceeds the variable range of the zoom magnification ratio of the copying machine, the number of copy repetitions to reach the desired copy size and the vertical and horizontal magnification ratios for each copy are set. The purpose is to provide.

Structure: In order to achieve the above object, the present invention provides a reading means for numerically reading a specified original size and a specified copy size, and a variable magnification ratio based on the original size and copy size read by the reading means. In a copying apparatus having a variable magnification function that calculates and outputs a variable magnification factor and a variable magnification function whose variable magnification is set by the output signal thereof, it is possible to set the variable magnification factors for both vertical and horizontal directions the same or separately. The present invention is characterized in that a variable magnification setting means is provided.

Further, in addition to the above configuration, the apparatus of the present invention for obtaining a desired variable magnification copy when the desired variable magnification exceeds the variable range of the zoom magnification of the copying machine further includes the variable magnification calculation means. a determining means for receiving the output signal of the copying apparatus and determining whether or not the magnification change rate is within the maximum vertical and horizontal magnification or minimum reduction magnification possible with the copying apparatus, and a determination result by the determining means; If the magnification ratio exceeds the maximum enlargement ratio or minimum reduction ratio, the number of copies required to reach the calculated magnification ratio by repeating copying using the resized copy as the original and each copying time. and a magnification change step calculation means for calculating a magnification change ratio of When the magnification is set to the magnification, and the magnification exceeds the maximum magnification or the minimum reduction magnification, the optical system is set to the calculated magnification for each copy of the number of copies calculated by the magnification change step calculation means. The present invention is characterized in that a magnification setting means is provided.

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

FIG. 1 shows a schematic diagram of the main parts of the operation flVS1 according to the embodiment of the present invention. Zoom magnification specification key 2 is vertical magnification specification key 1
4. Horizontal magnification specification key 15 or original size specification key 16
, copy, and size designation keys 17.

By operating the zoom enlargement key 3 and the zoom reduction key 4, the magnification is changed in steps of 0.01, and the display section 5 displays a bright image.

Further, when the standard setting key group 6 is used to designate the same size, standard enlargement, reduction, etc., these are similarly displayed on the display section 6. When the original size specification key 16 and the copy size specification key 17 are operated subsequent to the operation of the zoom magnification specification key 2, the portrait/landscape magnification ratio determined by the original and copy size specified by the numeric keypad 11 is set. Furthermore, when the vertical magnification designation key 14 and the horizontal magnification designation key 15 are operated subsequent to the operation of the zoom designation key 2, the vertical and horizontal magnification ratios can be set respectively. The magnification ratio at this time is displayed on the message display 19. Print key 18, clear key 12, interrupt key 13
, counter 10. The copy density instruction keys 7.8 and the copy density indicator 9 are the same as in conventional copying machines. FIG. 2 is a block diagram of control for zoom magnification of the copying machine of this embodiment, and each major functional element is provided by a microcomputer. Designated manual means 20tI'i, each key 2, 3.4.14.15.16.17.6 of the operating section 1 in FIG.
etc., and electrical signal generation means by these operations.

The reading means 2 reads and stores the signal from the input means 20. When the zoom designation key 2 is operated, the magnification ratio calculating means 23 calculates a magnification ratio from the numerical values of the document size designation and the copy size designation designated by the designation input means 18.

The determining means 24 determines whether the calculated magnification is within the minimum reduction or maximum magnification (hereinafter referred to as maximum magnification) set in the copying machine. Variable magnification setting means 27I/i If the calculated magnification is within the maximum magnification, sets the optical system 29 of the copying machine to the calculated magnification, and if it exceeds the maximum magnification, sets the necessary copy to reach. It calculates the number of times and the scaling factor for each copy, and this is calculated every time a copy is made in cooperation with the counter 26. Each frequency magnification setting means 27, based on the results of the determination means 24 and the variable magnification step calculation means 25,
When the variable magnification calculated by the variable magnification calculating means 23 is within the maximum magnification, the optical system 29 is set to the calculated variable magnification and displayed on the display unit 5, and when it exceeds the maximum magnification, The optical system 29 is set for each copy to the magnification ratio calculated by the magnification step calculation means 25 for each copy, and this is displayed on the display units 5 and 19. M
FIG. 3 shows a flowchart for zoom magnification. When you enter a designation using each key 4 on the operation panel 1, the zoom designation key 2
It is determined whether or not there is an operation, and if there is no operation, the optical system 29 is set to the magnification specified by the standard setting key 6, and the magnification is displayed on the display section 5. When the print start key 18 is operated, copy processing is performed. When the zoom designation key 2 is operated, the numeric keypad 5 is switched to function as a numerical manual for performing division.

Vertical/horizontal magnification designation key 14. If the human power of 15 is not operated, the original size a1 floppy size b can be set using the numeric keypad 5 in combination with the original size designation key 16 or the copy size designation key 17, etc. When specified,
The value of the magnification ratio X is calculated by the formula x-b/a. The numeric keypad 11 is returned to the normal setting for specifying the number of copies. If the variable magnification X is within the maximum magnification set for the copying machine, the optical system 29 is set to the calculated variable magnification X, and the variable magnification X is displayed on the display section 5.

When the variable magnification ratio The magnification ratio An for each copy is calculated, the optical system 23 is set to this value, and then displayed on the display unit 6. .

Following the manual power of the zoom magnification designation key 2, the manual power of the vertical and horizontal magnification designation keys 14 and 15 was applied, and the horizontal magnification was set by using the original, copy size designation keys 16 and 17, and the T-folder key 11. The horizontal manuscript length is a7sa7. Vertical and horizontal copy length b
As soon as T+by is input, the values of the lateral magnifications xT and xY are calculated by the formula x, = b, / a, xY = bY/aY.

The numeric keypad 11 is returned to the normal setting for specifying the number of copies.

If the magnification ratios xT and xY are within the maximum magnification ratio set in the copying machine, the optical system 29 uses the calculated magnification ratio XT.
s Xy and displayed on the message display 19.

Here, vertical magnification xT is scanner speed, horizontal magnification xY
is set using the lens position. The calculated magnification factor xT,
When xY exceeds the maximum magnification ratio, copying is required In
T%nY is calculated as a multiplication factor AT*Ay each time, and the number of times nT and nY are subtracted by 1 for each copy. ``T'
If one of nY becomes 0 first, the magnification of the one that became 0 is set to 1.0 (same magnification), and this is repeated until both become 0.

Effects As described above, according to the present invention, by specifying the vertical and horizontal sizes of the original and the vertical and horizontal sizes of the copy, the magnification ratio for the vertical and horizontal sides can be automatically adjusted. If the above magnification ratio exceeds the variable range of the zoom ratio of the copying machine, the number of copy repetitions to reach the desired copy size and the vertical and horizontal changes for each copy. By setting the magnification, it is easy to copy a document to fill the space of a predetermined vertical and horizontal size, or to copy characters of a desired vertical and horizontal length.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the main parts of the operating section of the embodiment of the present invention;
FIG. 2 is a control block diagram during zoom magnification of the copying machine according to the embodiment, and FIG. 3 is a flowchart when magnification is varied according to the embodiment. 2.3.4, 14.15.16.17.20...Size specification manual means,

Claims (2)

[Claims] (1) A reading means for numerically reading a specified original size and a specified copy size, and a variable magnification calculation means for calculating and outputting a variable magnification based on the original size and copy size read by the reading means. In a copying machine having a zoom magnification function in which the magnification is set by the output signal thereof, a magnification changing rate setting means is provided which can set the magnification of the vertical and horizontal directions to the same or separately. A copying machine featuring: (2) A reading means for numerically reading a specified original size and a specified copy size, and a variable magnification calculation means for calculating and outputting a variable magnification based on the original size and copy size read by the reading means. In a copying machine having a zoom magnification function whose magnification ratio is set by the output signal,
The vertical and horizontal magnification ratios can be set the same or separately, and upon receiving the output signal of the magnification ratio calculation means, the magnification ratio can be set to the vertical and horizontal magnifications that are possible with the copying device. a determining means for determining whether or not the magnification is within the respective maximum enlargement magnification or minimum reduction magnification, and if the determination result by the determining means is that the magnification is greater than the maximum magnification or minimum reduction magnification, the variable magnification is copied. a magnification step calculating means for calculating the required number of copies to reach the calculated magnification ratio by repeating copying using the original copy as a document, and a magnification ratio for each copying time; Based on this, when the required magnification ratio is within the maximum enlargement ratio or minimum reduction ratio, the optical system of the copying machine is set to the calculated magnification ratio, and when it exceeds the maximum enlargement ratio or minimum reduction ratio, the optical system of the copying machine is set to the calculated magnification ratio. 1. A copying apparatus comprising: a variable magnification setting means for setting an optical system to a calculated magnification factor for each copy of the number of copies calculated by the multiplication step calculating means.