JPS63101866A - Copying machine - Google Patents

Abstract

PURPOSE:To execute copying onto a copying form without generating an unnecessary blank, by selecting a copying magnification by which an image on an original is held exactly on the copying form, or the copying form. CONSTITUTION:An original G is placed on the input board surface 2a of a tablet with its image surface up, the left end of the original G is aligned with the left frame of the tablet 2, and its position is set so that the center of an image I to be copied conforms with a center mark 3. Subsequently, two points A1, A2 of the opposite angle of the image I to be copied are touched with an input pen 5, and these coordinates are inputted to a copying machine 1. Next, by opening a platen cover, the original G is set on original surface glass 6 by setting its image surface downward, and the original G is positioned so that the upper side and the lower side of the original G conform with the value of a scale of the left side of the tablet 2. When the setting of the original is ended, the platen cover is closed, and the instruction of a copying condition is given by an operating switch 9 and a console panel 10.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a copying machine, and more particularly to a copying machine that automatically enlarges or reduces an image of any size to fit the size of copy paper. Concerning a copying machine capable of

BACKGROUND ART Conventionally, there has been a copying machine capable of extracting and copying only a part of an image on a document.
This method is disclosed in Japanese Patent Application Publication No. 61-20065, etc.

In one example of these conventional devices, by placing an original on a tablet and inputting a rectangular frame surrounding the desired image part, only the part enclosed by the rectangular frame can be copied and the other parts can be left blank. (trim), or vice versa, you can leave only the area surrounded by a rectangular frame blank and copy only the area outside the rectangular frame (mask).

Problems with the Prior Art Although the above-mentioned conventional apparatus copies only a part of the image of a document, other parts are also formed on the copy paper at the same time, albeit as blank spaces, so there is no use in creating blank spaces. There is a problem with a lot of copying.

For example, if there is an article in the top half of an A4 size document and a figure in the bottom half, and you want to copy only the figure part, only the figure will be copied in the bottom half of the A4 size copy paper. The upper half is left blank, creating a problem that an unnecessary blank area is formed.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a copying machine that can take out only a partial image of a document and copy it onto copy paper without creating unnecessary blank spaces.

Structure of the Invention The copying machine of the present invention includes a position setting means capable of setting the coordinates of two points among the four corners of a rectangular frame surrounding an image on a document;
Based on the coordinates of the point, the size of the rectangular frame surrounding the image,
Coordinate calculation means capable of calculating the edge-to-edge distance from the edge of the document to the edge of the frame; mode selection means capable of selecting a specified magnification mode or a specified paper mode; and when in the specified magnification mode, the frame size is multiplied by the specified magnification. an automatic selection means for selecting a copy paper of the closest size equal to or larger than the stack size and, when in the specified paper mode, selecting the largest magnification less than or equal to a high magnification obtained by dividing the specified paper size by the frame size; A copy control means is provided for delaying the feeding of copy paper by a timing based on a multiplication distance obtained by multiplying the distance by a specified magnification or a selected magnification, and copying on the selected paper at the specified magnification or on the specified paper at the selected magnification. The structural feature is that

Function First, in the copying machine of the present invention, the copying magnification or copying paper is selected so that the image on the original exactly fits on the copying paper, so the generation of unnecessary blank spaces in terms of size is prevented. .

Next, in principle, the copy paper is fed in synchronization with the copy machine's optical system scanning the original from the edge, and the positions of the original and copy paper are matched. If left as is, a blank space will inevitably appear on the copy paper depending on the position of the image on the original.

However, in the copying machine of the present invention, this principle is changed and the feeding of the copy paper is delayed according to the edge-to-edge distance from the edge of the document to the edge of the image, so unnecessary blank spaces are also avoided in terms of position. occurrence is prevented.

EXAMPLES Hereinafter, the present invention will be explained in more detail based on examples shown in the drawings. Here, FIG. 1 is a perspective view showing the upper part of a copying machine according to an embodiment of the present invention, FIG. 2 is a view corresponding to FIG. 1 with the original holding cover opened, and FIG. ! :l is a plan view of the operation swift, FIG. 4 is a plan view of the operation panel, FIG. 5 is a block diagram of the main parts of the embodiment shown in FIG. 1, and FIG. 6 is a perspective view of another example of the coordinate setting device. 7 is a view seen from below the document surface glass, FIG. 8 is an example of a copy obtained in the automatic paper selection mode, FIG. 9 is an example of a copy obtained in the automatic magnification selection mode, and FIG. 13 is a flowchart of a main part of the operation of the embodiment shown in FIG. 1, and FIG. 14 is a diagram corresponding to FIG. 7 in a corner-based copying machine.

Note that the present invention is not limited to the examples described below.

In the copying machine 1 shown in FIG. 1, the upper surface of the document holding lid is a tablet 2, and a center mark 3 and a scale 4 are engraved on the left frame portion of the tablet 2.

Further, an operation switch 9 is provided in the right frame portion.

First, the operator places the original G on the input panel 21 of the tablet 2 with the image side facing upward, aligns the left edge of the original G with the main frame of the tablet 2, and aligns the center of the image I to be copied with the center mark. Then, using the input pen 5, select two diagonal points A1 . Touch A2 and input these coordinates into the copying machine 1.

Then, remember the values on the scale 4 corresponding to the upper and lower sides of the original G at this position. For example, in the case of FIG. Since r-16J is read as the value corresponding to the lower side, remember these values.

Next, the operator opens the document holding lid as shown in FIG. Align the left edge of the screen with the main frame of the document glass 6, and make sure that the scale engraved on the main frame and the top and bottom sides of the document G match the values of the scale 4 on the back frame of the tablet 2 that you memorized earlier. Position the original G at 0. For example, if the value you remembered is r+1
1'' and r-16J, the document G is also positioned between r+11J and r-16'' on the scale 8 of the back frame of the document surface glass 6. The origin of the scale 4 on the main frame of the tablet 2 and the scale 8 on the back frame of the original glass 6 are upside down, so when the original G is turned upside down, the origin is on the center of the original glass 6. Image I will be located at .

This completes the centing of the original G, so the original holding lid is closed and the copying conditions are given instructions using the operation switch 9 and the operation panel 10.

FIG. 3 shows the operation switch 9. As shown in FIG.

By pressing the mode selection key 11, you can select automatic paper selection mode, automatic magnification selection mode, mask mode, or trim mode. However, when document G is sent as described above, automatic paper selection mode or automatic Select magnification selection mode.

When selecting the mask or trim mode, the center of the document G is IN At the same time, when placing the original TAG on the original glass 6, the center of the original G and the center of the original glass 6 are made to match. Note that the masking and trimming are similar processes to conventionally known masking and trimming.

FIG. 4 shows the main parts of the operation panel 1o (
(portions not directly related to the description of the present invention are omitted).

The copy magnification can be specified using the magnification setting keys 12m, 12b, and 12c. When automatic paper selection mode is selected, press this magnification setting key 12. .

It is necessary to specify the magnification using 12b and 12c.

By pressing the paper selection key 13, the size of the copy paper can be selected. When automatic magnification selection mode is selected,
This makes it necessary to specify the size of the copy paper.

Density selection key 14. ．． The density of the copy can be selected using the key 14-, and the number of copies can be specified using the numeric keypad 15.

16 is a copy start button.

FIG. 5 is a block diagram showing the control system 20 of the copying machine 1, with the micro combinator 21 as the core, the tablet left 2. Photo ink printer for detecting the leading edge position of the document 23. Registration switch 24, registration roller drive clutch 25. Lens drive controller 26. Optical system drive servo motor controller 27. A copy paper cassette selection machine [112B, etc. is connected. Further, an optical system driving servo motor 29 is connected to the optical system driving servo motor controller 27 .

Note that in the copying process 8!11, the coordinates of the image I are input using the tablet 2 and the input pen 5, but the coordinates may also be input numerically from the numeric keypad 15.
In that case, it is necessary to know the coordinate values, and FIG. 6 is an example of an instrument for knowing the coordinate values. That is, the substrate 31
A transparent cover 32 is attached to the transparent cover 32.
A grid line indicating the coordinates is printed on. The original G is sandwiched between the substrate 31 and the transparent cover 32, and the original G is placed so that the left edge of the original G matches the left edge 33 of the grid line of the transparent cover 32, and the image I is divided into two equal parts by the center line 34. At that time, the two diagonal corners of the rectangular frame surrounding image I are positioned.
All you have to do is read the coordinates of the point.

FIG. 7 shows the document G set on the document glass 6 and viewed from below the document glass 6. As shown in FIG. Manuscript G
The size is larger than the paper size of A4R, and B4
The paper size is smaller than the standard paper size. The center of the image I you want to copy is the center of the original glass 6.
It matches Mesori.

Next, the operation of the copying machine 1 will be explained with reference to the flowcharts shown in FIGS. 10 to 13.

First, from the tablet 2, two points AI and A2 on the diagonal of the image I.
(Sl), these are A.

(X+, Y+), A2 (X2, Y2)
However, the X direction is a direction corresponding to the copy paper feeding direction, and the Y direction is a direction perpendicular thereto.

Next, it is checked whether or not it is in trim mode (S2), and if it is in trim mode, trim processing is performed. Since the trim processing is similar to conventionally known processing, a description thereof will be omitted.

If the mode is not the trim mode, it is checked whether the mode is the mask mode (S3). If the mode is the mask mode, mask processing is performed, but since this is the same as conventionally known processing, the explanation will be omitted.

If it is not the mask mode, it is checked whether the mode is automatic paper selection mode (S4).

If it is the automatic paper selection mode, the magnification is specified, so the specified magnification m is read out (S5).

Next, a suitable copy paper size is searched for (36), and the details of this process are shown in FIG.

That is, in FIG. 11, XI"IXI X21+
The frame size Xs, Y- of a rectangular frame surrounding the image is calculated as Ys-IYI-Y21 (S40).

Next, the frame size x,, y, is multiplied by the specified magnification m, and the product size xI1, Y, which is the image size after scaling, is calculated (S41).

Next, by the processing from step 342 onwards, the product size X,
, Y, or above, the closest copy paper size is selected. Here, the long side of the copy paper is centered in the X direction, b4X+bay is the length of the B4 size copy paper in the X and Y directions, and a4x+a4F is the length of the A4 size copy paper in the X and Y directions. bsx and b5a are the lengths of B5 size paper in the X and Y directions.

On the other hand, if the mode is not the automatic paper selection mode, it is checked whether the mode is the automatic magnification selection mode (57).

In the automatic magnification selection mode, the specified copy paper size x, I YP is read (38). For example, if B4 size is specified as the copy paper, Xp -b+
-, YP-b+a.

Next, the magnification is searched (S9), and the process is shown in detail in FIG.

First, the frame sizes X,, Y, are calculated (S50), which is the same process as step 340 above.

Next, set the specified paper size XP + YP to the frame size X.

, Ys, the theoretical magnification is high magnification m8, m
y is calculated (S51).

mX is the magnification in the X direction, my is the magnification in the Y direction, and the smaller of these is selected as the copying magnification m (S52°353.554). This is because if one of the magnifications is selected, part of the image will protrude from the copy paper.

Through the processing up to this point, the magnification m and the copy paper size are determined in both the automatic paper selection mode and the automatic magnification selection mode.

Once the magnification m and paper size are determined, the coordinates A1, A
The sizes of the two X coordinates are compared, and the smaller X coordinate value is set as the end-to-end distance a (SIO, S11.512).
That is, the distance from the left edge of the document G to the left edge of the rectangular frame is set.

On the other hand, if the mode is not trim mode, mask mode, automatic paper selection mode, or automatic magnification selection mode, end-to-end path ma-o is set (313).

This means normal copying at the same size and is not directly related to the present invention.

Next, the number of copies to be copied is read out (S14), and the process waits for the copy start button 16 to be pressed (S15).
- When the copy start button 16 is pressed, the lens is driven to obtain the magnification m (516), and copy control such as rotating and charging the photosensitive drum is started (SL?)
.

The copy paper is taken in from the paper cassette to the registration roller, reaches the registration roller, and is pressed by the registration switch 2.
4 is turned on, it is temporarily stopped there. This is-
This is the next paper feed (318).

Next, secondary paper feeding and optical system drive are controlled (S19
), but this process is shown in detail in FIG.

First, the optical system drive servo motor 29 is rotated in the forward direction to start moving the optical system (361).

When the optical system reaches the left end of the document G, the photo ink printer 23 for detecting the leading edge position of the document is turned on (S62).
, the speed command clock starts counting from there (S
63).

Since the number of speed command clocks represents the moving distance of the optical system, the count number n represents the distance from the left edge of the document G, and if this matches the edge distance gia (S64
), the registration roller drive clutch 25 is turned on and secondary paper feeding is started (S65). However, this is because the distance from the exposure position on the photosensitive drum to the transfer section is the same as the distance from the registration roller to the transfer section. This is the case when they match. If the distance from the exposure position on the photosensitive drum to the transfer section is different from the distance from the registration roller to the transfer section, secondary sheet feeding is started at a timing that is corrected for the time corresponding to the difference.

As a result, the secondary feeding of the copy paper is delayed by a time that can cancel the edge-to-edge distance a, so that the left edge of the rectangular frame, that is, the left edge of the image I, and the left edge of the copy paper are aligned.

When the copy paper is fed to the end and the registration switch 24 is turned off (366), copying of the image I has been completed, so the registration roller drive clutch 25 is turned off (567), and the optical system drive servo motor 29 is turned off. 368), and then reverses to return the optical system to its original home position (S69).

Once the image is formed on the copy paper as described above, copy processing such as fixing is then performed, and when that is completed (S20
), check whether all the sheets to be copied have been copied (521), and if there are any remaining copies, repeat step 17.
The process returns to and repeats copying, and if all the copies have been made, the process ends.

Now, here is an example of the copies obtained when the automatic paper selection mode is selected. This is the case where the image I shown in FIG. 7 is set to a magnification of m-200%.
00% and becomes I', and B4 size paper, which can accommodate the enlarged image 1' and is the smallest size copy paper, is selected.

According to the standard of copy paper, its size is considerably larger than image 1', so there is a blank space, but this is not a wasted blank space due to the position of image I in document G. This means that the left edge of image I' is This can also be understood from the fact that it is aligned to the left edge of the copy paper.

Next, an example of copying when the automatic magnification selection mode is selected is shown in FIG.
The copy is made with the magnification adjusted so that the image is exactly accommodated on R+ size paper. Therefore, no unnecessary blank space is created.

In addition, if you enter the coordinates of two diagonal points on the original G itself,
It is possible to automatically select copy paper and copy magnification for a document G of any size. In this case, if you input the coordinates of only one point on the right edge of document G, the other point on the diagonal will have an X coordinate of 0 (because the left edge of tablet left 2 and the left edge of document G are aligned) and a Y coordinate of The center of the tablet 2 will be a symmetrical position to the point entered in the coordinates above (the center of the tablet 2 and the original G
(by aligning the centers of the two). Therefore, by inputting the coordinates of only one point, two diagonal points can be set.

Also, in order to be consistent with the operations for trimming and masking, two diagonal points of the rectangular frame are input, but the automatic paper selection mode and automatic magnification selection mode themselves are
You may input two points aligned in the direction. The reason is that since the image I is placed symmetrically with respect to the center of the tablet 2, the center and the input point Y [of the rectangular frame as twice the difference between This is because the length in the Y direction can be calculated.

Now, the above explanation is based on the center of the document surface glass 6 and the document G.
Although the present invention is applicable to a copying machine based on a center reference, in which the corners of the original glass 6 and the corners of the original G are aligned, the present invention can also be applied to a copying machine based on a corner reference, in which the corners of the original glass 6 and the corners of the original G are aligned.

In this case, for example, align the corner of the document with the corner of the tablet left and use the two diagonal points A, A2 of the rectangular frame.
Enter the coordinates. Then, as shown in FIG. 14, align the left end of the document G with the back frame of the document surface glass 6', and
It is preferable to align the upper edge of the image with the lower edge of the document surface glass 6'.

In addition, as in the case of the center reference above, it is also possible to automatically select the copy paper and the copy magnification for a document G of any size, and at this time, by inputting one point, the coordinates of the false point can be set. You can also set it automatically. Also,
It is also possible to input two points A2°A arranged in the X direction.

Further, in the above description, whether the center reference or the corner reference is used, the rectangular frame surrounding the image is aligned, but the edges of the document may also be aligned. In this case, the optical system is controlled so that the image is optically resized to r! The position of the image may be adjusted by performing tm alignment or by shifting the copy paper.

Other embodiments include incorporating components according to the invention into, for example, a tablet left, making the tablet optional. Then, by adding this tab left to the main body of the copying machine, the copying machine of the present invention can be configured as desired, which is very convenient.

Effects of the Invention According to the present invention, there is a coordinate setting means capable of setting the coordinates of two points among the four corners of a rectangular frame surrounding an image on a document, and a frame size of the rectangular frame surrounding the image based on the coordinates of the two points. and a coordinate calculation means capable of calculating the edge-to-edge distance from the edge of the document to the edge of the frame, a mode selection means capable of selecting a specified magnification mode or a specified paper mode, and when in the specified magnification mode, a specified magnification for the frame size. automatic selection means for selecting the copy paper of the closest size greater than or equal to the multiplied product size, and selecting the largest magnification less than or equal to the high magnification obtained by dividing the specified paper size by the frame size when in the specified paper mode; Copy control means for delaying the feeding of copy paper by a timing based on a multiplication distance obtained by multiplying the end-to-end distance by a specified magnification or a selected magnification, and copying onto the selected paper at the specified magnification or on the specified paper at the selected magnification. A copying machine is provided, which is characterized by being equipped with a copying machine, which makes it possible to copy a part of an image of a document without creating unnecessary blank space.

Further, as a side effect, automatic copy paper selection and automatic magnification setting can be performed for a document of any size.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the upper part of a copying machine according to an embodiment of the present invention, FIG. 2 is a view corresponding to FIG. The figure is a plan view of the operation panel, FIG. 5 is a block diagram of the main parts of the embodiment shown in FIG. 1, and FIG. 61! 1 is a perspective view of four examples of the seat m setting device, FIG. 7 is a view seen from below the document surface glass, FIG. 8 is an example of copying obtained in the automatic paper selection mode, and FIG. 9 is an automatic FIGS. 10 to 13 are flowcharts of essential parts of the operation of the embodiment apparatus shown in FIG. 1, and FIG.
It is a figure equivalent figure. (Explanation of symbols) 1...Copy machine 2...Table left 3...
Center mark 4...Scale 5...Input pen
6... Original surface glass 8... Scale 9.
...Operation switch 10...Operation panel.

Claims (1)

[Claims] 1. (a) Two of the four corners of a rectangular frame surrounding the image on the document
Coordinate setting means capable of setting the coordinates of a point; (b) coordinate calculation means capable of calculating the frame size of a rectangular frame surrounding the image and the edge-to-edge distance from the edge of the document to the edge of the frame based on the coordinates of the two points; (c) mode selection means capable of selecting a designated magnification mode or a designated paper mode; (d) when in the designated magnification mode, selects copy paper of the closest size that is equal to or larger than the product size of the frame size multiplied by the designated magnification; and (e) when in the designated paper mode, automatic selection means selects the largest magnification less than or equal to the quotient magnification obtained by dividing the designated paper size by the ideal size, and (e) multiplies the end distance by the designated magnification or the selected magnification. Copying control means for delaying the feeding of the copy paper by a timing based on the multiplication distance, and for copying on the selected paper at a specified magnification or on the specified paper at the selected magnification. Machine.