JPH075579A - Copying device with zoom variable power function - Google Patents

Abstract

PURPOSE:To provide a copying device provided with a zoom variable power function capable of simplifying the constitution of an operating means for setting magnification in accordance with the presence of the specification of a zoom. CONSTITUTION:This copying device capable of varying the power of the zoom is provided with a specifying input means executing control so that when a zoom specifying key 2 is not operated, one of plural standard magnifications is set from a standard setting key group 9 and when the zoom specification operating key 2 is operated, the sizes of an original and a copy are numerically inputted from ten keys 5 and the ten keys are returned to normal ones for specifying the number of the copies, a variable power rate calculating means calculating/setting the magnification from the numerically inputted original, a processing means executing copy processing by the magnification set by the standard setting key group 9 or the variable power rate calculating means by the operation of a printing start key 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying machine having a zoom magnification function.

[0002]

2. Description of the Related Art Recently, copying machines have been required to have a function as a manuscript making machine in accordance with the sophistication thereof, and therefore, copying machines having a zoom magnification function have been put on the market. In this type of copying machine, for example, the variable range of zoom magnification is set to 0.
The variable step is set to 5 to 0.41 and the variable step can be set to 0.01 or 0.001 in response to a request such as appropriately arranging graphs and tables in a desired space.

[0003]

In such a copying apparatus, it is desirable that the operation means for setting the magnification according to the presence / absence of the zoom designation is simple in construction.

Therefore, according to the present invention, when the zoom is not designated, the standard magnification can be set, and when the zoom is designated, the variable magnification can be automatically set by inputting the original size and the copy size. By doing so, it is an object of the present invention to provide a copying machine having a zoom magnification function, which can easily configure the operation means for setting the magnification according to the presence or absence of zoom designation.

[0005]

In order to achieve this object, the present invention is directed to a copying apparatus capable of changing the zoom magnification, and when a zoom designation key is not operated, a plurality of standard setting keys are used. When one magnification is set from the magnifications and the zoom designation operation key is operated,
The manuscript size and copy size are numerically input from the ten-key pad, and the operating means for controlling the ten-key to return to the normal number of copies designated after the input, and the magnification is calculated and set from the numerically input manuscript size and copy size. A copying machine having a zoom magnification function, which comprises a computing means and a processing means for performing a copying process according to a magnification set by the standard setting key or the computing means by operating a print start key. .

[0006]

According to this structure, the operating means sets one magnification from the plurality of standard magnifications from the standard setting key when the zoom designation key is not operated.

On the other hand, when the zoom designation operation key is operated, the operating means uses the values input from the ten keys as the numerical values of the original size and the copy size, and after the numerical values are input, the ten key is used to specify the normal number of copies. Control to return to.

Then, the calculating means calculates and sets the magnification from the document size and the copy size, which have been numerically input. Further, the processing means performs a copy process by operating the print start key according to the standard setting key or the magnification set by the computing means.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic view of the main part of the operation unit 1. The zoom designation key 2 is operated in combination with the zoom enlargement key 3 or the zoom reduction key 4, and the numeric value of the zoom magnification is designated by the numeric keypad 5. The magnification of enlargement or reduction is electronically displayed on the display unit 6.

When the manuscript size designation key 7 is operated prior to the operation of the ten keys 5, the manuscript size designated by the ten keys 5 is accepted, while when the copy size designation key 8 is operated, the copy size is similarly set. The display unit 6 displays the scaling factor based on each designation of the original size and the copy size at this time.

Further, when the zoom designation key 2 is not operated, when the standard setting key group 9 designates the same size or the standard enlargement, the standard reduction, etc., these designated values are displayed on the display section 6. Has become.

Incidentally, the power switch 10, the clear key 11, the print start key 12, the counter display section 13, the interrupt key 14, the copy density designation keys 15 and 16, and the copy density index 17 are conventionally provided in the operation section of the copying machine. Is each element.

FIG. 2 is a block diagram of control, and each main functional element is provided in the microcomputer. The designation input means 18 (operation means) includes the keys 3, 4, 5, 7, 8, 9 etc. of the first-time operation unit 1 and electric signal generation means by these operations.

The reading means 19 reads and stores the signal from the input means 18. The scaling factor computing unit 20 computes the scaling factor from the numerical values of the original size designation and the copy size designation designated by the designation input unit 18 when the zoom designation key 2 is operated.

The discriminating means 21 discriminates whether or not the calculated scaling factor is within the maximum scaling factor set for the copying machine. The scaling factor setting means 22 sets the optical system 23 of the copying apparatus to the computed scaling factor if the computed scaling factor is within the maximum scaling factor, and reduces or enlarges if it exceeds the maximum scaling factor. Similarly, the maximum magnifications are set and the display unit 6 displays them.

The operation of the configuration shown in FIG. 2 will be described below. Referring to the flow chart of FIG. 3, when the designation by each key of the operation unit 1 is inputted, it is judged whether or not the zoom designation key 2 is operated, and when there is no such manipulation, the optical system 23 is designated by the standard setting key group 9. Display ratio 6
The magnification is displayed on. When the print start key 12 is operated, copy processing is performed. It should be noted that this copy processing is performed by a well-known copy processing means (not shown).

When the zoom designation key 2 is operated, the ten key 5 is switched to function as a numerical value input for performing division. When used in combination with the original size specification key 7 or copy size specification key 8 etc., the numeric keypad 5
When the original size a and the copy size b are designated by, the value of the scaling factor x is calculated by the equation x = b / a.
Return the numeric keypad 5 to the normal copy number designation. Magnification ratio x
Is within the maximum magnification set in the copying apparatus, the optical system 23 is set to the calculated magnification x, and the display portion 6 displays the magnification x. When the maximum magnification is exceeded, the optical system is set to the maximum magnification and this is displayed on the display unit 6. When the print start key 12 is operated, copy processing is performed according to the set and displayed magnification. Incidentally, this copy processing is also performed by a well-known copy processing means (not shown).

FIG. 4 is a block diagram showing another embodiment of the control. Explaining the difference from FIG. 2, the scaling step computing means 24 determines that the scaling factor calculated by the scaling factor computing means 20 is the maximum scaling factor. When the discriminating means 21 discriminates that it has exceeded, it calculates the required number of times of copying to reach the calculated scaling factor and the scaling factor for each copy number, and the copy is performed in cooperation with the counter 25. This is calculated every time.

Based on the results of the discriminating means 21 and the scaling step calculating means 24, each time the scaling ratio setting means 26, when the scaling ratio calculated by the scaling ratio calculating means 20 is within the maximum magnification, the optical system 23 Is set to the calculated scaling ratio, and this is displayed on the display unit 6, and when the maximum scaling ratio is exceeded,
The optical system 23 is set to the variable magnification ratio for each copy operation calculated by the variable power step calculating means 24 for each copy, and this is displayed on the display unit 6.

The flow chart of FIG. 5 shows the operation of the control in FIG. 4. When the scaling factor x exceeds the maximum scaling factor, the required number of copies n is calculated, and this number of times n is incremented by 1 for each copy. Therefore, the number of times n is subtracted, and the number of times n is the remaining number of times that copying should be executed. The magnification ratio An for each number of times n is calculated for each number of times of copying, and the optical system 23 is set to this value. To be done.

FIG. 6 shows a light pen 27 used as the designation input means 18, a scale 29 and a sensor (not shown) are provided on the side of the contact glass 28, and the original size and copy size are set by the light pen. When designated by 27, this is read by the reading means 19 and the scaling factor is calculated as described above.

[0023]

As described above, according to the present invention, in the copying apparatus capable of zoom magnification, when the zoom designation key is not operated, one magnification is set from a plurality of standard magnifications using the standard setting key. When the zoom designation operation key is operated, the manuscript size and copy size are numerically input from the numeric keypad, and the operating means for controlling the numeric keypad to return to the normal number of copy designations after the input, and the numerically input original document. Since it is configured to include a computing unit that computes and sets a magnification from the size and the copy size, and a processing unit that performs a copy process according to the magnification set by the standard setting key or the computing unit by operating the print start key, the zoom If there is no designation, the standard magnification can be set. If there is a zoom designation, enter the original size and copy size. It is possible to set the magnification automatically. Moreover, this makes it possible to simplify the structure of the operating means for setting the magnification according to the presence or absence of zoom designation.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an operation unit of a copying apparatus showing an embodiment of the present invention.

FIG. 2 is a block diagram showing an example of control.

3 is a flowchart showing the operation of the control of FIG.

FIG. 4 is a block diagram showing an example of control.

5 is a flowchart showing the operation of the control of FIG.

FIG. 6 is an explanatory view showing another embodiment of the designation input means.

[Explanation of symbols]

 2 ... Zoom designation key 3 ... Zoom enlargement key 4 ... Zoom reduction key 5 ... Numeric keypad 7 ... Original size designation key 8 ... Copy size designation key 9 ... Standard setting key group (standard setting key) 18 ... Designation input means (operating means) 20 ... Magnification ratio calculation means 21 ... Discrimination means 22 ... Magnification ratio setting means 24 ... Magnification ratio step calculation means 26 ... Magnification ratio setting means 27 ... Light pen (electrically detecting device)

Claims (1)

[Claims] 1. In a copying apparatus capable of zoom magnification change, when the zoom designation key is not operated, one magnification is set from a plurality of standard magnifications by the standard setting key, and the zoom designation operation key is operated. Then, the manuscript size and copy size are numerically input from the ten-key pad, and the operating means is controlled to return the ten-key pad to the normal number of copies designated after the input, and the magnification is calculated from the numerically input manuscript size and copy size. A copying apparatus having a zoom magnification function, comprising: a calculation unit that sets the print start key and a processing unit that performs a copy process according to a magnification set by the standard setting key or the calculation unit by operating a print start key.