JPH08279893A - Copying machine - Google Patents

Abstract

PURPOSE: To surely prevent production of useless blank onto copying paper when a blank generating function is in operation. CONSTITUTION: The copying machine is provided with an entry section 1 entering information required for generating blank such as a black generating position and the amount of blank, a magnification setting section 4 setting independntly of a copying magnification in the longitudinal/lateral direction in response to each detection size by a paper size detection section 2 and an original size detection section 3 based on blank generating information entered from the entry section 1, and a copy processing section 9 conducting copying processing based on the copying magnification in the longitudinal/lateral direction set by the magnification setting section 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying apparatus having a margin creating function for creating a margin such as a binding margin on a copy sheet.

[0002]

2. Description of the Related Art Generally, in this type of copying apparatus, a desired margin portion is provided on a copy sheet by aligning an original image read by an image reading unit on one side of the copy sheet and making a copy. Things are known.

[0003]

However, in such a copying apparatus, when the text or the like is recorded over substantially the entire area of the copy original, when the original image is offset, a part of the original image is copied from the copy paper. There was a problem of protruding.

Therefore, conventionally, a copying apparatus has been proposed in which the original image is reduced and copied so that a part of the original image does not protrude from the copy sheet due to the deviation of the original image in the margin formation. (Japanese Patent Laid-Open No. 2-810
64 publication). However, in the above-mentioned conventional apparatus, since the entire original image is uniformly reduced and copied, not only the image image is reduced by the reduction processing, but also a margin is created at a position other than the margin creating position designated by the user. Therefore, there is an inconvenience that the margin balance is worse than that of the copy original. Specifically, for example, as shown in FIG. 6, when a blank space of W is provided on the left side of the copy paper P2, the original document image is reduced if the original image is subjected to a reduction process in order to prevent the image from protruding due to the blank space. A wide margin area (u1, u2) exists above and below P1, but the margin area is further expanded by reducing the original image (u1 <U1,
u2 <U2), and the margin balance is getting worse on the copy paper P2 side.

The present invention has been made to solve the above problems, and an object thereof is to reliably prevent useless margins from being created on a copy sheet when the margin creating function is activated. It is to provide a copying machine capable of performing the same.

[0006]

The present invention has been made in order to achieve the above object, and based on an input section for inputting margin creating information and a margin creating information input from this input section. Vertical / Corresponding to each size of copy manuscript and copy paper
A configuration is provided that includes a scaling factor setting unit that independently sets the horizontal scaling factor and a copy processing unit that performs a copying process based on the vertical / horizontal scaling factor set by the scaling factor setting unit. ing.

Further, there is provided a copy prohibiting unit for prohibiting the copying process when the difference between the vertical and horizontal copying magnifications set by the variable magnification setting unit is equal to or larger than a specified value.

[0008]

In the copying apparatus of the present invention, the information (margin creating position, margin amount, etc.) necessary for creating a margin is input through the input unit. In the scaling ratio setting section, the vertical / horizontal direction copy ratios corresponding to the sizes of the copy original and copy paper are set based on the input margin creation information, and the copy is performed based on the vertical / horizontal direction copy ratio. A copy process is performed in the processing unit. As a result, when the margin creation is specified in either the vertical direction or the horizontal direction of the copy sheet, the margin is provided by reducing the image only in the specified direction.

Further, in the copying apparatus of the present invention, if the difference between the vertical / horizontal copying magnifications set by the scaling setting unit is equal to or greater than the specified value, the copying process is stopped by the copying prohibiting unit, so that copying is performed. Inconveniences such as an image being distorted and printed on a sheet can be avoided.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a functional block diagram showing an embodiment of a copying apparatus according to the present invention, and FIG. 2 is a flow chart showing the processing procedure thereof. First, in FIG. 1, the input unit 1 is composed of, for example, an operation panel provided with a plurality of setting buttons. From the input unit 1, for example, as shown in FIG. ~ D
Of these, the information necessary for creating a margin, such as the designation of the margin position such as which side to create the margin and the amount of the margin to be created, is input. The paper size detection unit 2 detects the size of the copy paper that is the copy destination. Specifically, when the output from the detection sensor attached to the paper tray or the storage paper size is determined for each tray, Detects the copy paper size based on the specified tray number. The document size detection unit 3 detects the size of a copy document as a copy source. Specifically, the document size detection unit 3 outputs from a detection sensor provided below a document table (platen glass or the like) or an image at the time of line scanning. The size of the copy document is detected based on the signal.

The scaling ratio setting unit 4 is based on the margin creation information input from the input unit 1, and the vertical / horizontal copying magnification corresponding to each detection size in the paper size detection unit 2 and the document size detection unit 3. In this embodiment, the image area calculating section 5, the vertical magnification calculating section 6 and the horizontal magnification calculating section 7 are provided. Of these, the image area calculation unit 5 calculates the image area based on the margin creation information input from the input unit 1 and the paper size detected by the paper size detection unit 2. The vertical-magnification calculating unit 6 uses, as the margin creation information from the input unit 1, the vertical direction of the copy sheet, that is, FIG.
As shown in (A), when at least one of the upper side c and the lower side d of the copy paper P2 is designated as the margin creation position, the paper size detection unit 2 and the document size detection unit 3
The copy magnification in the vertical direction X of the paper is calculated according to the ratio of the size detected in step 1 and the margin amount specified together with the margin creation position. On the other hand, the lateral magnification calculating unit 7 uses the margin creating information from the input unit 1 in the lateral direction of the copy sheet, that is, as shown in FIG. 3A, the left side a or the right side b of the copy sheet P2.
When at least one of the two is specified as the margin creating position, the paper size is detected according to the ratio of the sizes detected by the paper size detecting unit 2 and the document size detecting unit 3 and the margin amount specified together with the margin creating position. Then, the copy magnification in the horizontal direction Y is calculated.

The copy prohibition unit 8 prohibits the copying process when the difference between the vertical / horizontal copy ratios set by the scaling ratio setting unit 4 is greater than or equal to a specified value. The respective calculation results of the vertical magnification calculation unit 6 and the horizontal magnification calculation unit 7 are given. In the copy prohibition unit 8, the vertical magnification calculation unit 6
Also, the difference between the vertical and horizontal copying magnifications is obtained based on the respective calculation results provided from the horizontal magnification calculating unit 7. Then, the value (magnification difference) obtained here is compared with a preset specified value (threshold value), and if the difference in copying magnification is equal to or greater than the specified value, the copying process is prohibited. Therefore, according to the copy prohibition unit 8, when the difference between the vertical / horizontal copy magnifications is equal to or more than the specified value, the inconvenience of continuing the copy process, that is, the characters of the original or the entire image of the original is extremely large. It is possible to obviate the inconvenience that the copied image is disturbed in a vertically or horizontally long manner and the copied image is disturbed.

The copy processing unit 9 performs a copy process based on the vertical / horizontal copy ratio set by the scaling ratio setting unit 4. In the present embodiment, the copy data input unit 10,
Copy data shift unit 11, copy data reduction / enlargement unit 12
And a copy data output unit 13. Of these, the copy data input unit 10 has an image reading function such as a CCD image sensor, and reads an image of a copy sheet set on a platen or an image of a copy document fed by a document feeder. Enter. The copy data shift unit 11 shifts the copy position of the image on the copy sheet based on the image area information calculated by the image area calculation unit 5. Specifically, the copy data shift unit 11 shifts the copy data optically, Shifting means such as changing the timing of writing the image on the copy sheet is adopted. The copy data reduction / enlargement unit 12 responds to the copy data input from the copy data input unit 10 according to the vertical / horizontal copy ratios calculated by the vertical magnification calculation unit 6 and the horizontal magnification calculation unit 7. Perform vertical / horizontal reduction / enlargement processing. The copy data output unit 13 prints out the image data reduced / enlarged by the copy data reduction / enlargement unit 12 in the image copy area of the copy sheet shifted by the copy data shift unit 11.

Next, the operation procedure of the copying apparatus having the above-mentioned structure will be described with reference to the flowchart of FIG. First, when the copy document is set on the document table, the size of the copy document is detected by the document size detection unit 3 (S1). Next, the margin creation information is input via the input unit 1 (S2), and the size of the copy paper is detected by the paper size detection unit 3 (S3). Incidentally, in the present embodiment, of the four sides a to d of the copy paper P2 shown in FIG. 3A, two sides, the left side a and the upper side c, are designated as the margin creating positions, and the margin amount of each is W (mm). ) Is specified. The processing procedure of the document size detection (S1), the margin creation information input (S2), and the paper size detection (S3) described above is an example when the margin creation information is input after the document is set. This does not apply when the margin creation information is input before setting or when the tray is specified after the margin creation information is input.

Next, when the paper size detected by the paper size detecting unit 2 is A4 size, for example, as shown in FIG.
As shown in (B), for the copy sheet P2 of A4 size, the margin amount set in the left side a and the upper side c (W in this example
The image area E is calculated by the image area calculation unit 5 according to (mm) (S4). Further, the vertical magnification calculation unit 6
Then, since the upper side c is designated as the margin creation position, the copy magnification in the vertical direction X is calculated according to the ratio of the document size and the paper size detected earlier and the margin amount W on the designated upper side c. At the same time, in the lateral magnification calculation unit 7, since the left side a is designated as the margin creating position,
Similarly to the above, the copy magnification in the lateral direction Y is calculated according to the ratio between the document size and the paper size and the specified margin W on the left side a (S5).

Subsequently, when the start button for notifying the start of copying is turned on (S6), the copy prohibiting section 8
A difference (magnification difference) M between the vertical copy magnification calculated by the vertical magnification calculation unit 6 and the horizontal copy magnification calculated by the horizontal magnification calculation unit 7 is compared with a preset specified value N ( S
7). When the magnification difference M is equal to or greater than the specified value N, the copy process is stopped at that time, and a message indicating that the image is disturbed in the copy result is displayed as described above (S).
8).

On the other hand, when the difference M in the vertical / horizontal copying magnification is small and is less than the specified value N, the copying processing is performed by the copying processing unit 9 as follows (S9). That is, image data of a copy original read via a CCD image sensor or the like is input as copy data from the copy data input unit 10. Further, in the copy data shift section 11, for example, the timing of writing an image on a copy sheet is set based on the image area information calculated by the image area calculating section 5 described above. Copy data reduction /
In the enlarging unit 12, the copy data input from the copy data input unit 10 has the vertical copy magnification calculated by the vertical magnification calculation unit 6 and the horizontal copy magnification calculated by the horizontal magnification calculation unit 7. Basically, the image is reduced / enlarged with individual vertical / horizontal copy magnification. Then, the copy data output unit 13 prints out the image data processed by the copy data reduction / enlargement unit 12 on a copy sheet according to the image writing timing set by the copy data shift unit 11.

As a result, as shown in FIG. 4, with respect to the copy sheet P2 which is the copy destination, a margin of the designated amount W is provided only at the margin creating position (left side a, upper side c) specified by the margin creating information. The image of the copy document P1 is copied in the other area. In the above embodiment, the case where the sides a and c of the copy sheet P2 are designated as the margin creating positions has been described as an example, but for example, the left side a of the copy sheet P2.
5A is designated as the copy position, the image is reduced only in the lateral direction to provide a margin of the designated amount W as shown in FIG.
If only the top side c is specified as the margin creation position,
As shown in FIG. 5B, the reduction processing of the image is performed only in the vertical direction so that a blank space of the designated amount W is provided.

[0019]

As described above, according to the present invention,
Based on the margin creation information input from the input section, a variable magnification setting section is provided for independently setting the vertical / horizontal copying magnification according to the size of the copy original and copy paper. Since the copy processing unit is configured to perform the copy processing based on the set vertical / horizontal copy magnification, when the blank space creation function is activated, the blank space creation information is set in the direction in which the blank space creation information is specified. Only, it is possible to provide a desired margin by reducing the image. As a result, it is possible to prevent the original image from being unnecessarily reduced, and it is possible to reliably prevent useless margins from being created on the copy sheet.

Further, according to the present invention, when the difference between the vertical / horizontal copying magnifications set by the scaling setting unit is equal to or more than the specified value, the copying process is stopped by the copying prohibiting unit, so that the original document is copied. It is possible to avoid the disorder of the copied image such that the entire image of the character or the original is extremely vertically or horizontally elongated, and it is possible to surely avoid the disorder of the copied image due to an input error of the margin creation information. Become.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing an embodiment of a copying apparatus according to the present invention.

FIG. 2 is a flowchart showing a processing procedure of the copying apparatus.

FIG. 3 is a diagram for explaining processing contents of the copying apparatus.

FIG. 4 is a diagram showing an example of a copy result.

FIG. 5 is a diagram showing another example of a copy result.

FIG. 6 is a diagram illustrating a conventional problem.

[Explanation of symbols]

 1 input section 2 paper size detection section 3 original size detection section 4 variable magnification setting section 8 copy prohibition section 9 copy processing section

Claims (2)

[Claims] 1. An input unit for inputting margin creation information, and vertical / horizontal copy magnifications corresponding to respective sizes of a copy original and copy paper based on the margin creation information input from the input unit. A copying apparatus comprising: a scaling ratio setting unit that is independently set; and a copy processing unit that performs a copying process based on the vertical / horizontal copying ratio set by the scaling ratio setting unit. 2. A copy prohibition unit for prohibiting a copy process when a difference between vertical and horizontal copy magnifications set by the variable magnification setting unit is equal to or larger than a specified value. The described copying machine.