JPH02149183A - Portable copying machine - Google Patents

Abstract

PURPOSE:To make number of times of scanning only one when an area of a read picture is within a size of a read means in the main scanning direction by reading the picture data of a memory by 1/N each in the main scanning direction (N is a multiple factor in the main scanning direction) by a magnification setting means. CONSTITUTION:A read means reads a picture data in a memory 2 by 1/N each in the main scanning direction, where N is the multiple factor in the main scanning direction. Thus, the picture data stored and read in the memory 2 is read dividedly corresponding to the multiple factor set by a multiple factor setting means 5, then the picture of each part corresponding to the divided picture is selected and printed out with magnification, then the picture data read once is printed out with magnification.

Description

[Detailed description of the invention] Skin presentation standing up ■ Standing! The present invention relates to a portable copying machine.

BACKGROUND ART Portable copying machines (hereinafter referred to as "copying machines") that are equipped with enlargement and reduction functions that print by varying the size or displacement of a read image have been put into practical use. In a reading mode, such a copying machine stores an image read by an image reading means in a memory, and in a printing mode, a printing means prints the image stored in the memory on paper or the like. In print mode, if the print magnification is set to 100%, the image stored in memory will be printed as is, but if the print magnification is set to enlarge or reduce, the reference point set on the scanned image will be printed. A read image that is enlarged or reduced by a set magnification is printed in the main scanning direction and the sub-scanning direction as the origin.

Therefore, if you set the print magnification when changing the magnification,
The scan length in the main scanning direction in print mode (hereinafter referred to as "second main scanning width") is different from the scan length in the main scanning direction in reading mode (hereinafter referred to as "first main scanning width").
) is automatically determined. Similarly, the scan length in the sub-scanning direction in print mode (hereinafter referred to as "second sub-scanning width") is automatically set to the scan length in the sub-scanning direction in reading mode (hereinafter referred to as "first sub-scanning width"). determined.

By the way, scanning in the sub-scanning direction is performed by moving the copying machine, so if the data amount of the read image is within the capacity of the installed memory, the first sub-scanning width and Second
There is no particular restriction on the sub-scanning width.

However, scanning in the main scanning direction is limited by the size of the image reading means and printing means of the copying machine in the main scanning direction.

Therefore, even if the area of the read image is within the range of the first main scanning width, if the area of the printed image enlarged by the set printing magnification exceeds the size of the printing means in the main scanning direction, the corresponding There is a problem in that the portion exceeding the size is not printed, resulting in chipping of the image.

Hereinafter, regarding the above problem, a conventional copying operation will be specifically explained based on FIGS. 10 and 11.

In FIG. 10, (a) shows the area of the read image, and (b) shows the area of the printed image. Side AC of image ACFD in (a) has a first main scanning width, and side AD has a first sub-scanning width. When the image ACFD in (a) is enlarged and printed twice, the first sub-scanning width (side AD in (a)) is enlarged twice and becomes the second sub-scanning width (side AD in (b)). However, if the first main scanning width (side AC in (a)) is the same as the size of the printing means in the main scanning direction, then the side AC in (a)
is enlarged twice, the enlargement is performed using point A as the reference point, so the second main scanning width is half the first main scanning width.
Only the image for side AB in (a) is printed,
Therefore, as shown in (b), the printed image is (a
The image ABED among the read images in ) becomes an image enlarged twice, and the image BCF among the read images in (a)
E will not be printed. In order to make the 0 image BCFE a printed image, after enlarging and printing the image ABED as shown in FIG. 10, print the read image BCFE of (a) as shown in FIG. 11. Read with point B as the reference point, (c)
It is necessary to print an enlarged version of the print image BCFE shown in FIG.

As mentioned above, when the enlarged print image exceeds the size of the printing means in the main scanning direction, there is a problem in that the same number of scans must be performed in the reading mode as in the print mode. Furthermore, in order to prevent misalignment between a plurality of printed images, it is necessary to reliably set a reference point for enlargement when performing multiple scans in the reading mode, which is troublesome.

Therefore, an object of the present invention is to reduce the number of scans in the reading mode to 1 no matter what print magnification is set, as long as the area of the read image is within the size range of the reading means in the main scanning direction. To provide a portable copying machine which can perform enlarged printing of only a part of a read image.

In order to achieve the above-mentioned object, the portable copying machine of the present invention comprises an image reading means, a memory for storing the read image data, a reading means for reading the data from the memory, and a memory for storing the read image data. In a portable copying machine comprising a printing means for printing based on data and a magnification setting means for setting a print magnification, the reading means reads the memory when the magnification in the main scanning direction is set to N by the magnification setting means. The image data is read out in increments of 1/N in the main scanning direction.

According to the configuration of the present invention, the read image data stored in the memory can be divided and read out in accordance with the magnification set by the magnification setting means.
It is possible to select each part of the image corresponding to the divided image data to be enlarged and printed, and also to enlarge and print all the image data read at one time.

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

A microcomputer (7) equipped with a CPU (3) and a counter (6), an image reading means (1), and a RAM
(2), printing means (4) and magnification setting means (5) are connected to each other.

The image reading means (1) such as a COD (charge transfer device) and the printing means (4) such as a printer can be those used in conventional copying machines, and are not particularly limited. , the explanation is omitted.

RAM (2) is provided to store image data input by the image reading means (1). Further, RAM (2) may be used to store data obtained by enlarging N-divided image data N times, which will be described later, but RAM or microcomputer ( It is also possible to use the main memory (not shown) in 7) as a substitute.

The magnification setting means (5) is a print size selection switch (14) provided for setting the print magnification. ) etc. The printing magnification can be divided into a reduction mode, a same-size mode, and an enlargement mode, and the configuration may be such that the magnification can be set as appropriate. It may also be a configuration.

The microcomputer (7) performs various controls and also functions as a reading means for reading data from the memory. A counter (6) in the microcomputer (7) stores each image data in RAM using an address specified for each of the N divided image data, which will be described later.
It is used to manage data (n) when reading out sequentially from (2).

FIG. 2 shows a front view (a) and a right side view (b) of this embodiment. A hand switch (11) is provided on the left side of the copying machine body (16), and on the front are a main power switch (12), a repeat switch (13), a print size selection switch (14), and a mode selection switch. (15) is provided. In addition, there is a thermal head (17) and an auxiliary roller (18a) on the bottom of the copying machine body (16).
And a running roller (18b) is provided so as to protrude. The hand switch (11) is a power switch provided to operate the image reading means (1) in the reading mode and to operate the printing means (4) in the print mode. When the hand switch (11) is pressed, the means in each mode start operating, and when the hand switch (11) is released, it stops. The repeat switch (13) is N
This is used when enlarging and printing each image corresponding to the divided image data, and when the enlarged image at address (N) has been printed, printing the enlarged image again from address (1). The mode selection switch (15) is configured to manually set the reading mode or print mode by sliding it. The thermal head (17) is provided as a printing means 4), and prints an image on paper or the like via an ink ribbon that moves in conjunction with a running roller (18b) that rotates during scanning.

The auxiliary roller (18a) is provided to smoothly move the copying machine over a document or the like during scanning.

FIG. 3 is a flowchart showing an overview of the operation of an embodiment of the present invention.

At one end of the read image is the reading position (
(not shown), place the copying machine on top of the document. Main power switch (12) of the copying machine body (16)
Turn ON, and use the step (Ill) to turn the hand switch (
11) While pressing down, scan the first sub-scanning width in the sub-scanning direction. During the scan, the image signal read by the COD as an image sensor is input in step (cloud 2), and the next step ( The image signal read in I3) is A
/D converted and sent to CPU (3). When the scan is completed and you stop pressing the hand switch (11), the image data read in step (I4) will be stored in the RAM.
(2) and stored. Figure 6 shows RAM (
2) is a schematic diagram showing a state in which the read image data is stored. FIG.

Next, the mode selection switch (15) is set to print mode. In step (I5), press the print size selection switch (
15) to a desired printing magnification, and place the copying machine on the paper so that the printing position (not shown) of the copying machine main body (16) is aligned with one end of the printing area of the paper. When the hand switch (11) is pressed, the set printing magnification (N
) is input to CPU (3).

Regarding reduced printing, since the second main scanning width is smaller than the first main scanning width, the explanation will be omitted in the following description of the operation of this embodiment. Furthermore, it is assumed that enlarged printing is performed by varying the magnification, and a description of the case where enlarged printing is performed by deviation is omitted, but the printing magnification (N) of the variable magnification in this embodiment is It should be added that the explanation of the operation of this embodiment can be applied by applying it to the first main scanning width of .

Next, the image data stored in RAM (2) in step (I4) is divided into N pieces in step (I6). For example, for image data divided into N equal parts, addresses (1) to (N) are set in the order in which they are read in the reading mode. FIG. 7 shows a state in which the image data read into RAM (2) is divided into N equal parts.

Next, n set in the counter (6) in step (7) is initialized to O. Step (I8)
By setting +1, n becomes 1 first.

In step (9), among the image data divided into N equal parts as described above, the n-th image data, that is, the image data at address (1), is enlarged by N times and stored in the output memory. This output memory may be the main memory, or may be an external memory other than RAM (2). FIG. 8 shows a state in which each image data divided into N equal parts is multiplied by N and stored in the output memory. Regarding the output memory, the image data multiplied by N at each address may be sequentially input into one output memory, and the image data at the previous address may be cleared, but it is also possible to provide a plurality of output memories, By sequentially inputting the image data multiplied by N at each address into these multiple output memories and leaving all the input image data, it is possible to output the image data multiplied by N at each address as appropriate. It may be configured as follows.

The image data stored in the output memory in step (110) is printed out by a thermal head (17) or the like. Printout is performed by scanning the second sub-scanning width in the sub-scanning direction while holding down the hand switch (11), similarly to scanning in the reading mode. As mentioned above, if the image data multiplied by N is stored in the output memory, it will be printed out as is, but if the image data at each address is stored in the output memory as it is, then it will be output when printed out on the output device. Depending on the configuration of the device, N times more printouts may be performed.

In step (lit), it is determined whether n of the counter is equal to N of the printing magnification. Here, initially, n is 1, so the address (1
) is multiplied by N and printed out. Therefore, unless the copy is set to the same size, the process returns to step (I8), 1 is added to the counter, and step (19), step (110) and step (1
11) is repeated, and if it is determined that n is equal to the printing magnification, the process proceeds to step (1112).

At step (Ill), the N times enlarged printing of all the read images is completed, so the enlarged print is repeated again using the input read images at a different magnification than N times or the same N times (all Repeat) is determined in step (1112). The entire repeat is shown in Figure 2 (
This is done by activating a repeat switch (13) as shown in a). If the enlarged printing is to be repeated for the entire read image again, the process returns to step (cloud 5), a new print magnification is set, and the operations of steps (116) to (Ill) are performed in the same manner as described above. If it is determined in step (112) that enlarged printing is not to be performed again, the process advances to step (113) and the operation of this embodiment ends.

FIG. 4 is a flowchart outlining the operation of another embodiment of the present invention.

The operation of this embodiment is the same as that of the third embodiment except that step (19A) is added to the operation of the flowchart shown in FIG.
It has the same configuration as the operation of the embodiment shown in the figure.

In step (19A), it is determined whether the image data stored in the output memory is to be printed out. Step (19A) is provided to proceed to step (110) and print out when printing out, and to proceed to step (+111) without going through the printing step (110) when not printing out. This makes it possible to print out only a desired portion of the read image divided into N equal parts. In order to determine whether or not to print out in step (19A), the copying machine body (16) is provided with a printout determination switch (not shown) or the like. For images that are not to be printed out, the copying machine may be configured to proceed to step (Ill) when the switch is turned on.

FIG. 5 is a flowchart outlining the operation of another embodiment of the present invention.

The operation of this embodiment has the same configuration as the operation of the flowchart shown in FIG. 3 regarding steps (#1) to (I7), so the explanation regarding steps (11) to (cloud 7) will be omitted. Hereinafter, steps (17A) to (114) will be explained.

In step (IT^), it is determined whether the hand switch (11) is in the ON state. If it is not in the ON state, step (17A) is repeated until the hand switch (11) is pressed. If it is in the ON state, the process advances to step (I8), and n+1 is set to n of the counter (6).

Next, in step (18A) it is determined whether n is N+1. If n-N+1, step (11
In step 3), it is determined whether or not to repeat the entire process in the same manner as step (1112) in FIG. finish.

If it is not n-N+1, proceed to step (119), and the third
Similar to step (@9) in the figure, the image data at address n is stored in the output memory, and printed out in step (110).

Next, in step (1111), it is determined whether a partial repeat switch (not shown) provided on the main body of the copying machine is in an ON state. If it is not in the ON state, the process proceeds to step (17^) and the same operation as above is repeated.
If the state is N, the process advances to step (112) where it is determined whether the hand switch is in the ON state. If it is not in the ON state, press the hand switch (1
Step (112) is repeated until 1) is pressed and O
If the state is N, the process advances to step (119) and the same operation as described above is repeated. By operating the partial repeat switch, images corresponding to image data at the same address can be repeatedly enlarged and printed.

FIG. 9 is a flowchart showing an overview of the operation of still another embodiment of the present invention, and shows the operation when performing double enlarged printing.

The operation of this embodiment has the same configuration as the operation of the flowchart shown in FIG. 3 regarding steps (11) to (cloud 4), so the explanation regarding steps (Ill) to (114) will be omitted and will be described below. , steps (I5) to (117)
I will explain about it.

Set the mode selection switch (15) to print mode,
After setting the print size selection switch (14) to the desired print magnification, place the copying machine body (14) at one end of the printing area of the paper.
6) Place the copying machine on the paper so that the printing position (not shown) is aligned. When you press the hand switch (11), the print magnification set in step (#5) will change to CP.
Input to U (3).

In step (116), it is determined whether or not the enlargement mode is set, and if the enlargement mode is not set, the process proceeds to step (7), the output is output to the memory (RAM (2)), and the process proceeds to step (I8). If the enlargement mode is set, the operation of this embodiment is limited to double enlargement printing, so the first image data read out of the image data divided into two halves Address (1) is set to , and address (2) is set to the next read image data. Step <114) at the address (
1) is specified, and in step (115) memory (RAM
(2)) After the output is performed, proceed to step (cloud 8).

In step (Step 8), the image data output to the memory is the same image data for full scale printing, the reduced image data for reduced printing, and the scaled image data for enlarged printing. ) is entered.

At step (19), the printout is performed by the thermal head (17) in the same way as step (110) in FIG. It is determined whether the enlargement mode is set. If the enlargement mode is not set, the process proceeds to step (113) and the operation ends. If the magnification mode is set, step (1
111), and the full enlargement mode is set by pressing a full enlargement mode setting switch (not shown) provided on the copying machine body (16). Depending on the switch, only the image at address (1) is printed, or both images at addresses (1) and (2) are printed to print a fully enlarged image that is twice the size of the read image. You can make a choice. In step (112), it is determined whether or not the switch is in the ON state, thereby determining whether or not to fully enlarge the image. If the image is not completely enlarged, the process advances to step (113) and the operation ends. If it is to be fully enlarged, proceed to step (116) and 1. Address (2) of image data in RAM (2) is specified. Then, after memory (RAM) output is performed in step (117), step (I8)
Then, the same operation as printing the image data at address (1) is performed.

As described above, according to the present invention, as long as the area of the read image is within the size range of the reading means in the main scanning direction, no matter what printing magnification is set, the reading is possible. This has the advantage that image data can be stored in the memory by performing a single scan in the mode.

Furthermore, there is also the effect that only a portion of the read image can be enlarged and printed.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a front view and a right side view showing one embodiment of the present invention. FIG. 3 is a flowchart showing an overview of the operation of the first embodiment of the present invention. FIG. 4 is a flowchart showing an overview of the operation of the second embodiment of the present invention. FIG. 5 is a flowchart showing an overview of the operation of the third embodiment of the present invention. FIG. 6 is a schematic diagram showing the state in which the read image data is stored in the RAM in the first embodiment, the second embodiment, and the third embodiment, and FIG. FIG. 8 is a schematic diagram showing a state in which each image data divided into N equal parts is multiplied by N and stored in an output memory. FIG. 9 is a flowchart showing an overview of the operation of the fourth embodiment of the present invention. FIGS. 1O and 11 are explanatory diagrams for explaining a conventional copying operation. <1) --- Image reading means, (2) --- RAM. (3)...CPU, (4)...Printing means. (5) --- Magnification setting means, (6) --- Force counter. (7)--Microcomputer. (11)...-hand switch, (12)...main power switch. (13)・-Repeat switch. (14)...Print size selection switch. (15) ---Mode selection switch. (16)--Copier main body, (17)--Thermal head. (18a) ... Auxiliary roller, (18b) ・
...Traveling roller.

Claims (1)

[Claims] (1) An image reading means, a memory for storing read image data, a reading means for reading data from the memory, a printing means for printing based on the read data, and a magnification setting means for setting a printing magnification. In the portable copying machine, the reading means is configured to read out the image data in the memory by 1/N in the main scanning direction when the magnification in the main scanning direction is N by the magnification setting means. A portable copying machine characterized by: