JPH0564118A - Video printer for card print - Google Patents

Abstract

PURPOSE:To print out a same picture twice on one print by rotating a picture long in the lateral direction when the picture to be printed out is the picture long in the lateral direction. CONSTITUTION:A row address generating means 21 and a column address generating means 22 generate respectively a row address and a column address, and send the addresses to a picture storage means 3 via address selection means 20, 15. Suppose that a print head 11 is arranged vertically in the lengthwise direction of print form when a picture to be printed out is a picture long in the longitudinal direction, the address selection means 20 selects at first the column address and then the row address, and when a picture to be printed out is a picture long in the lateral direction, the address selection means 20 selects at first the row address and then the column address.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a prepaid card and an I.D. D. The present invention relates to a card-printing video printer that prints an image on a card-sticking print paper in order to stick the image to a card such as a card.

[0002]

2. Description of the Related Art In a conventional card-printing video printer, an image displayed on a part of the monitor screen (center of the monitor screen, etc.) is disclosed, for example, in Japanese Patent Application No. 62-125920. If the image to be printed is a vertically long image (that is, an image in which the longitudinal direction of the image matches the vertical direction of the monitor screen) when printing the card on the printing paper for card sticking, one sheet of printing paper I was supposed to print the same image twice.

[0003]

FIG. 2 is a schematic diagram showing an image of an image printed by a conventional card printer video printer. As described above, conventionally, when the image to be printed is a vertically long image, as shown in FIG. 2A, the vertically long print area is set on the monitor, and then one print is made. It was supposed to print the same image twice on paper.

However, when the image to be printed is a horizontally long image (that is, the image whose longitudinal direction coincides with the horizontal direction of the monitor screen), as shown in FIG. After setting the horizontally long print area on the monitor, it was possible to print only once on one sheet of print paper. That is, when the image to be printed is a horizontally long image, there is a problem that the printing paper cannot be effectively used because it can be printed only once on one printing paper.

When it is desired to print an image displayed on the entire monitor screen instead of a part of the monitor screen,
There is a problem that the image to be printed as it is is too large to print.

An object of the present invention is to solve the above-mentioned problems of the prior art, and even if the image to be printed is a horizontally long image, the same image can be printed twice on one print sheet. To provide a printer.
Another object of the present invention is to provide a video printer capable of printing even when the image to be printed is the image displayed on the entire monitor screen.

[0007]

In order to achieve the above-mentioned object, in the present invention, an image storage means for storing an image,
An image storage control unit for generating an image storage control signal connected to the image storage unit, a digital / analog (hereinafter abbreviated as D / A) conversion unit connected to the image storage unit, and an image storage unit. Print data conversion means for converting the connected image data into print data; a print head connected to the print data conversion means;
In the card printer video printer configured by, an area signal adding means is provided between the image storage means and the D / A conversion means, and an address (row direction) is provided in the image storage control means. A row address generating means for giving a row address, a column address generating means for giving a column-direction address (column address), an address for sequentially selecting the generated row address and column address, and outputting the read address for printing. Selecting means is provided, and when the image to be printed is a horizontally long image, the address selecting means determines the order of selecting the row address and the column address when the image to be printed is a vertically long image. I made it the opposite.

[0008]

The area signal adding means adds an area signal indicating the area of the image to be printed to the image data from the image storage means. The area signal is added under the control of the image storage control means before printing.
The area signal is generated by the image storage control means under the control of the system control means (area designation data is sent to the image storage control means at any time).

An offset address (an address indicating the same area as the data given when the area signal is added from the system control means) is given to the row address generation means and the column address generation means. The address is changed one by one from the offset address, and the address only in the area designated as described above is transferred to the address selecting means.

When the image to be printed is a horizontally long image, the address selecting means sets the row address and the column address in the reverse order of the selection order when the image to be printed is a vertically long image. And sends it to the image storage means as a read address for printing.

As a result, the image to be printed is 90 °
It can be rotated and printed. Therefore, even if the image to be printed is a horizontally long image, the image can be printed twice on a single sheet of printing paper for a card.

[0012]

EXAMPLES Examples of the present invention will be described below. First, the overall configuration and operation of the video printer will be described.
FIG. 1 is a block diagram showing an entire video printer as a first embodiment of the present invention.

In FIG. 1, 1 is an analog signal processing means and 2 is an analog / digital (hereinafter abbreviated as A / D)
Conversion means 3, image storage means 4, synchronization signal separation means,
Reference numeral 5 is a synchronizing signal generating means, 6 is an image storage controlling means, 7 is an area signal adding means, 8 is a D / A converting means, 9 is an analog signal processing means, 10 is a print data converting means, 11 is a print head, and 12 is a print head. Drum drive control means, 13 drum drive means, 14 system control means, 15 address selection means, 16 print read address generation means, 17 write address generation means, 18 read address generation means for monitor, 19 Row / column switching signal generating means, 20 is address selecting means, 21 is row address generating means, and 22 is column address generating means.

The operation of FIG. 1 will be described. The image signal is input to the analog signal processing means 1 and the synchronizing signal separating means 4. The analog signal processing means 1 performs analog processing such as color decoding and sends the image signal to the A / D conversion means 2.
The sync signal separating means 4 separates the sync signal from the video signal and transfers it to the sync signal generating means 5.

The A / D conversion means 2 converts an analog image signal into digital image data and transfers it to the image storage means 3. The synchronizing signal generating means 5 is the synchronizing signal separating means 4
A sync signal is generated based on the sync signal from and is transferred to the image storage control means 6.

The image storage control means 6 is a synchronization signal generating means 5
The image data from the A / D conversion means 2 is stored in the image storage means 3 based on the synchronization signal from the. At this time, the address to the image storage means 3 is output from the write address generation means 17 in the order of the row address and then the column address, and sent to the image storage means 3 via the address selection means 15.

When the image data is stored in the image storage means 3, the image storage control means 6 controls the image storage means 3 to read out the image data. The address at this time is
The monitor read address generator 18 first generates a row address and then a column address, and transfers it to the image storage 3 via the address selector 15.

The image storage means 3 reads the image data under the above-mentioned read control and sends the read image data to the area signal adding means 7. The area signal adding means 7 is
Under the control of the image storage control means 6, a signal indicating the area to be printed is added to the image data, and the D / A conversion means 8 is added.
Send to.

The D / A conversion means 8 converts the digital image data into an analog image signal and transfers it to the analog signal processing means 9. The analog signal processing means 9 performs analog processing such as encoding on the image signal and transfers it to a monitor (not shown).

When the print switch (not shown) is turned on after confirming the area to be printed by the monitor output, the system control means 14 sends a print data read command to the image storage control means 6.

The image storage control means 6 controls the image storage means 3 to read out data for printing. The row address and the column address at this time are generated by the row address generation means 21 and the column address generation means 22, respectively, and sent to the image storage means 3 via the address selection means 20 and 15.

The image storage means 3 reads the image data for printing and sends it to the print data conversion means 10 under the above-mentioned read control for printing. The print data conversion means 10 converts digital image data into print data for printing by the print head, and transfers the print data to the print head 12. The print head 12 prints an image on a print sheet (not shown) according to the print data from the print data conversion means 10.

On the other hand, the drum drive control means 12 sends a drum drive control signal to the drum drive means 13 according to the drum drive speed setting from the system control means 14. The drum drive means 13 drives a drum (not shown) under the control of the drum drive control means 12, and print paper (not shown).
Move.

In the present embodiment, the address selecting means 20 operates as follows. That is, assuming that the print head 11 is now arranged in parallel to the longitudinal direction of the print paper, the address selecting means 20 will cause the row address first and then the column address when the image to be printed is vertically long. Select in the order of address,
On the contrary, when the image to be printed is horizontally long, the column address is selected first, and then the row address is selected.

If the print head 11 is arranged perpendicularly to the longitudinal direction of the printing paper, the address selecting means 20 will make the column address first and then the address second when the image to be printed is vertically long. If the image to be printed is horizontally long, the row address is selected first, and then the column address is selected. As a result, for the image displayed on the monitor,
The image of the printed image is as follows.

FIG. 3 is a schematic diagram showing an image of an image printed by the card printer video printer of FIG. That is, if the image to be printed is landscape,
As described above, the address selecting unit 20 selects the row address and the column address in the order opposite to the case where the image to be printed is vertically long, and as a result, as shown in FIG. The image can be rotated 90 ° and the same image can be printed twice on one sheet of print paper. In the case of FIG. 3A, the print area setting on the monitor is the same as in the case of FIG. 2B.

When the image to be printed is the image displayed on the entire monitor screen, the address selecting means 20 determines the row address and the column address as described above, and the image to be printed is vertically long. By selecting in the reverse order of the above, and further, the row address generating means 21 and the column address generating means 22 generate discrete values as the row address and the column address, thereby reducing the image to be printed and rotating it by 90 °, The same image can be printed twice on one sheet of print paper.

The operation of writing and reading image data to and from the image storage means 3 in FIG. 1 will be described with reference to FIG. FIG. 4 is a schematic diagram showing how the image data stored in the image storage means 3 in FIG. 1 is arranged. In FIG. 4, the addresses of the image data to be stored are shown as (0,0) to (479,639).

Writing of image data to the image storage means 3 is (0, 0) in the case of an interlaced screen, for example.
(0,1), (0,2) ... (0,639), (2,
0), ..., the same direction as the scanning line (longitudinal direction)
Will be written in sequence. Also when reading image data when sending to a monitor, (0,0), (0,1), (0,2) ...
Like (0, 639), (2, 0), ..., Reading is sequentially performed in the longitudinal direction as in writing.

On the other hand, when reading out image data for printing, assuming that the print head 11 is arranged perpendicularly to the longitudinal direction of the print paper, for example, if the image to be printed is vertically long (0, 0), (1,
0), (2, 0), ... (479, 0), the data is sequentially read in the direction perpendicular to the longitudinal direction.

Next, a case where the image to be printed is horizontally long will be described. When the image to be printed is horizontally long, as shown above, by selecting the row address and the column address in the reverse order to the case where the image to be printed is vertically long, the result is shown in FIG. As described above, the image to be printed is rotated by 90 °, and the same image is printed twice on one sheet of print paper.

That is, when the area shown by 100 in FIG. 4 is designated as the image to be printed, the image data is read out by (241, 1), (241,
2), (241, 3), ..., (241, 320),
(240, 1), (240, 2), ... (2, 320)
Repeat in this order twice.

Next, a case where the image to be printed is the image displayed on the entire monitor screen will be described. If the image to be printed is the image displayed on the entire monitor screen, as described above, select the row address and the column address in the reverse order of the case where the image to be printed is vertically long, and further, By generating discrete values as row addresses and column addresses, the image to be printed is reduced and rotated by 90 °, and the same image is printed twice on one sheet of print paper.

That is, the reading of the image data is (47)
(9, 0), (479, 2), (479, 4), ... (4
79, 638), (477, 0), (477, 2), ...
..., (0, 638) and the like, and the image data is read out and printed while thinning out.

Next, the detailed structure and operation of the image storage control means 6 in FIG. 1 will be described with reference to FIG. FIG. 5 is a block diagram showing a specific example of the image storage control means 6 in FIG. 1, and this specific example is a specific example for performing the printing shown in FIG.

In FIG. 5, 23 is a main timing signal generating means, 24 and 27 are adding means, 25 is a row address counter, 26 is a row address addition value storing means,
28 is a column address counter, 29 is a column address addition value storage means, 30 is an area signal generation means, 31
Is an image storage control signal generating means. In addition, the same components as those in FIG. 1 are denoted by the same reference numerals.

The operation of FIG. 5 when the image to be printed is horizontally long will be described. The main timing generation means 23 gives each block in the image storage control means 6 a clock and a timing signal necessary for the control (the details of these are omitted here).

The image storage control signal generating means 31 inputs the clock from the main timing generating means 23,
Write enable, row address strobe, column address strobe, etc. necessary for writing and reading of image data are generated and sent to the image storage means 3. The area signal generating means 30 generates an area signal and transfers it to the area signal adding means 7 when confirming a horizontally long image to be printed on a monitor.

Next, the internal operation of the print read address generating means 16 will be described. First, the addition value storage unit 26 stores the addition value data in the row address direction output from the system control unit 14. The addition value storage unit 29 stores the addition value data in the column address direction output from the system control unit 14.

The row address counter 25 receives the print start signal from the system control means 14,
Counting is started and the count value is sent to the adding means 24. The addition means 24 adds the count value of the row address counter 25 and the addition value stored in the addition value storage means 26, and sends it to the address selection means 20.

The column address counter 28 also starts counting when the print start signal from the system control means 14 is input, and the count value is added by the addition means 27.
Send to. The adding means 27 is a column address counter 28.
And the added value stored in the added value storage means 29 are added and sent to the address selection means 20.

Under the control of the row / column switching signal generating means 19, the address selecting means 20 controls the row address and the column address generating means 2 from the row address generating means 21.
The column address from 2 is switched and sent to the address selection means 15. At this time, if the print head 11 is arranged vertically to the longitudinal direction of the print paper, the order of selecting the row address and the column address is first to select the row address and then to select the column address.

By repeating the generation of such an address twice, the horizontally set image having the area set can be rotated by 90 °, read out from the image storage means 3, and the same image can be printed twice on one sheet of print paper. it can.

The method of generating addresses in FIG. 5 will be described more specifically. FIG. 6 is a timing chart showing the timing of the main signal in FIG. In FIG. 6, 40 is a 1-line print start signal, 41 is a read column address for printing, 42 is a read row address for printing, 43 is a row address strobe, 44 is a column address strobe, and 45 is read image data for printing. The address order in FIG. 6 shows the address order when printing the area 100 in FIG.

The system control means 14 uses the first line 1
When the line print start signal is output, additional value data in the row address direction is generated, the read row address for printing output from the adding means 24 is set to 241, and additional value data in the column address direction is generated. The read column address for printing output from the adding means 27 is set to 1.

The read column address for printing is sequentially incremented by 2, 3, 4, ... Each time the image data for one dot is read by the column address counter 28. On the other hand, the read row address for printing is fixed to 241 during the data read period of the first line.

Next, when the row address counter 25 inputs the first line print start signal of the second line,
The read row address for printing is set to 240.
On the other hand, the read column address for printing is sequentially incremented by 1, 2, 3, 4, ... By the column address counter 28, similarly to the operation of the first line.

Next, the area signal generating means 3 in FIG.
The detailed configuration and operation of 0 will be described. FIG. 7 is FIG.
3 is a block diagram showing a specific example of area signal generating means 30 in FIG. In FIG. 7, 52 is a 4-input OR gate, 53, 54, 55 and 56 are comparing means, 57 is upper area data storing means, 58 is lower area data storing means, 5
9. Left area data storage means, and 60 is right area data storage means.

The operation of FIG. 7 will be described. When outputting the image data stored in the image storage means 3 to the monitor, the upper area data storage means 57 stores the upper area data from the system control means 14, and the lower area data storage means 58 stores the lower area from the system control means 14. The data is stored in the left area data storage means 59, the left area data from the system control means 14, and the right area data storage means 69 is stored in the right area data from the system control means 14.

The upper area data storage means 57 stores the upper area data in the comparison means 53, the lower area data storage means 58 stores the lower area data in the comparison means 54, and the left area data storage means 59 stores the left area data in the comparison means 55. The right area data storage means 60 compares the right area data with the comparison area 56.
To each. The monitor reading row address is sent to the comparing means 53 and 54, and the monitor reading column address is sent to the comparing means 55 and 56.

The comparing means 53 compares the upper area data with the read row address for monitoring, and sends a coincidence output to the 4-input logical sum gate 52 when the input values of both are coincident with each other.
The comparing means 54 compares the lower area data with the read row address for monitoring, and sends a coincidence output to the 4-input OR gate 52 when the input values of both are coincident with each other. Comparison means 55
Compares the left area data with the read column address for monitoring, and sends a coincidence output to the 4-input OR gate 52 when the input values of both are coincident with each other. The comparing means 56 compares the right area data with the read column address for monitoring, and sends a coincidence output to the 4-input OR gate 52 when the input values of both are coincident. The 4-input OR gate 52 is a comparison means 5
The logical sum of the coincidence outputs from 3, 54, 55 and 56 is performed and the logical sum is sent to the area signal adding means 7 as an area signal.

Next, another specific example of the image storage control means 6 in FIG. 1 will be described with reference to FIG. FIG. 8 shows FIG.
4 is a block diagram showing another specific example of the image storage control means 6 in FIG. 3, which is a specific example for performing the printing shown in FIG. In FIG. 8, 50,
Reference numeral 51 is a frequency dividing means. In addition, the same components as those in FIG. 5 are designated by the same reference numerals.

The operation of FIG. 8 when the image to be printed is horizontally long will be described. The frequency dividing means 50 and 51 are controlled to be turned on and off by the frequency dividing switching signal from the system control means 14 (in this embodiment, the frequency dividing is on), and the clock from the main timing signal generating means 23. Are divided and sent to the row address counter 25 and the column address counter 28, respectively.

The row address counter 25 and the column address counter 28 count the divided clocks,
The count values are sent to the adding means 24 and 27, respectively. Figure 8
Operations of blocks other than those described above are the same as those of FIG. According to the present embodiment, the address can be generated by skipping every several addresses, so that reduction printing as shown in FIG. 3B can be performed.

The method of generating addresses in FIG. 8 will be described more specifically. FIG. 9 is a timing chart showing the timing of the main signal in FIG. In FIG. 9, 40 is a 1-line print start signal, 41 is a read column address for printing, 42 is a read row address for printing, 43 is a row address strobe, 44 is a column address strobe, and 45 is read image data for printing. The address order in FIG. 9 shows the address order when printing the entire area of FIG.

The system control means 14 uses 1 of the first line.
When the line print start signal is output, additional value data in the row address direction is generated, the read row address for printing output from the adding means 24 is set to 479, and additional value data in the column address direction is generated. , And sets the print read column address output from the adding means 27 to 0.

The read column address for printing is sequentially incremented by 2, 4, 6, ... By the column address counter 28 every time one dot of image data is read. On the other hand, the read row address for printing is fixed to 479 during the data read period of the first line.

Next, when the row address counter 25 inputs the first line print start signal of the second line,
The read row address for printing is set to 477.
On the other hand, the read column address for printing is sequentially incremented by 0, 2, 4, 6, ... By the column address counter 28, similarly to the operation of the first line.

Next, a second embodiment of the present invention will be described. In the present embodiment, as shown in FIG. 3B, when an image to be printed is reduced, and when an unprintable area occurs in the upper, lower, left, and right directions, a frame (a portion of 8 colors including white among the 8 colors including white) is printed in the unprintable portion. This is to create a frame of one color).

FIG. 10 is a block diagram showing print data conversion means (corresponding to the print data conversion means 10 in FIG. 1) in a card print video printer as a second embodiment of the present invention. In FIG. 10, 68
Is a frame addition means, 69 is a 1-line image data storage means, 7
Reference numeral 0 is a comparison unit, 71 is a gradation counting unit, 72 is a 1-line image data storage control unit, and 73 is a print head control signal generation unit.

The operation of FIG. 10 will be described. Image storage means 3
The image data read from is input to the frame adding unit 68. The frame setting data for designating the area of the frame is input from the system control unit 14 to the frame adding unit 68 in advance. The frame adding means 68 adds a frame to the image data and transfers it to the 1-line image data storage means 69.

The 1-line image data storage means 69 stores the image data of 1 line to be printed under the control of the 1-line image data storage control means 72. When the 1-line image data storage means 69 stores the image data of 1 line to be printed, the 1-line image data storage control means 72 controls the print image data to compare means 7.
Send to 0.

The gradation counting means 71 counts the gradation to be printed and sends the count value to the comparing means 70 and the print head control signal generating means 73. Comparison means 70
Compares the image data with the gradation count value, and when the image data is larger than the number of gradations printed, the output is made high, and the print head 11 outputs the print head data.
Send to.

On the other hand, the print head control means 73 generates a clock and a latch necessary for fetching print head data, and a head strobe signal which determines the energization time for each gradation and sends it to the print head 11.

Here, the detailed structure and operation of the frame addition means 68 in FIG. 10 will be described. 11 is shown in FIG.
3 is a block diagram showing a specific example of frame adding means 68 in FIG. In FIG. 11, 74 is a 4-input OR gate, 7
5, 76, 77 and 78 are comparing means, 79 is a line counting means, 80 is an upper frame setting data storage means, 81 is a lower frame setting data storage means, 82 is a left frame setting data storage means, 8
Reference numeral 3 is a right frame setting data storage means, and 84 is a data selection means.

The operation of FIG. 11 will be described. The upper frame setting data storage unit 80 stores the upper frame setting data from the system control unit 14, and the lower frame setting data storage unit 81 stores the lower frame setting data from the system control unit 14 into the left frame setting data storage unit. The left frame setting data from the system control unit 14 is stored in 82, and the right frame setting data from the system control unit 14 is stored in the right frame setting data storage unit 83.

The upper frame setting data storage means 80 sets the upper frame setting data to the comparing means 75, the lower frame setting data storage means 81 sets the lower frame setting data to the comparing means 76, and the left frame setting data storage means 82 sets the left frame setting. The data is compared to the comparing means 77, and the right frame setting data storage means 83 compares the right frame setting data to the comparing means 78.
To each.

The comparing means 75 compares the image data fetched number signal from the image storage control means 6 with the upper frame setting data, and when the image data fetched number ≦ upper frame setting data, the output is set to high and the 4-input logical sum. Send to gate 74. The comparing means 76 compares the image data fetched number signal from the image storage control means 6 with the lower frame setting data, and when the image data fetched number ≧ lower frame setting data, sets the output to high and causes the 4-input OR gate 74 to operate. send. The line counting means 79
The one-line print start signal from the system control means 14 is counted, and the count value is sent to the comparison means 77, 78.

The comparing means 77 compares the line count value with the left frame setting data, and when the line count value ≦ the left frame setting data, sets the output to high and sends it to the 4-input OR gate 74. The comparing means 78 compares the line count value with the right frame setting data, and when the line count value ≧ the right frame setting data, sets the output to high and sends it to the 4-input OR gate 74.
The OR gate 74 is used for comparing means 75, 76, 77, 78.
The output of the logical sum is performed and the logical sum output is sent to the data selecting means 84.

The data selecting means 84 is an OR gate 74.
Output, the image data and the input fixed to high or the input fixed to low are selected and sent to the 1-line image data storage means 69. In the data selection means 84,
It is a signal from the OR gate 74 that selects image data or fixed data. Further, it is the frame color selection signal from the system control means 14 that selects high fixed data or low fixed data in the data selection means 84.

According to this embodiment, a frame can be added to a portion having no image data when the image is reduced, and the blanking period is not printed. In addition, it is possible to print by changing the color of the frame portion.

Next, a third embodiment of the present invention will be described. FIG. 12 is a schematic diagram showing an image of an image printed by a card printer video printer according to the third embodiment of the present invention.

In this embodiment, a plurality of image storage means are provided,
Two different screens are printed. That is,
First, as in the case of FIG. 3A, the area to be printed on the image 1 is set on the monitor, and then the area to be printed on the image 2 is set. In the case, there is no need to set the above area.) As for printing, as shown in FIG. 12, images 1 and 2 are rotated by 90 ° and printed on one sheet of printing paper.

FIG. 13 is a block diagram showing an image storage means and its peripheral circuits in a card print video printer as a third embodiment of the present invention. In FIG. 13, 61 and 62 are image storage means, 63 is a data selection means, 64 is a plurality of image storage control means, 65 is an image storage control signal selection means, 66 is an image storage control means, and 67 is a system control means.

The operation of FIG. 13 will be described. The image storage control means 66 generates an image storage control signal in synchronization with the synchronizing signal of the input video image in response to a write command from the system control means 67, and transfers it to the image storage control signal selection means 65.

The image storage control signal selection means 65 sends the image storage control signal to the image storage means 61. As a result, the image storage means 61 first stores the first image. next,
Change the input image to the second image you want to print. The image storage control signal selection means 65 sends the image storage control signal to the image storage means 62. Thereby, the image storage means 62
Stores the second image.

Next, the image storage control means 66 generates an image read control signal in response to a read command from the system control means 67 and sends it to the image storage control signal selection means 65. The image storage control signal selection means 65 is 1 /
Up to 2 (from the 1st line to the 320th line print in the case of 640 line print), the image storage control signal is transferred to the image storage means 61, and the remaining 1/2 (print from the 321st line to the 640th line print) Transfers the image storage control signal to the image storage means 62.

The image storage means 61 and 62 send the stored image signals to the data selection means 63. The data selection unit 63 selects the image signal from the image storage unit 61 for up to 1/2 of the print (from the first line print to 320 line print for 640 line print), outputs it as print data, and converts the print data. Send to means 10. The other half (from the 321st line print to the 640th line print) is the image storage means 62.
The image signal from is selected, output as print data, and sent to the print data conversion means 10.

According to this embodiment, it is possible to print a card for two screens on one print sheet.
When it is desired to perform card printing of different images one by one, there is an effect that the printing paper and the printing time can be saved.

Next, a fourth embodiment of the present invention will be described with reference to FIG. In the present embodiment, when one dot of the print image printed by the print head does not have an aspect ratio of 1: 1, when the image is rotated by 90 ° and printed, the aspect ratio of the dot is increased without extending vertically or horizontally. This is an example in which printing can be performed while keeping the same. The method is to change the amount of movement of the print paper with respect to the print head.

FIG. 14 is a block diagram showing a drum drive control means in a card print video printer as a fourth embodiment of the present invention. In FIG. 14, 85 is a smoothing means, 86 is a phase comparison means, 87 is an N frequency dividing means, 8
Reference numeral 8 is an M frequency dividing means, and 89 is a drum drive control reference signal generating means.

The operation of FIG. 14 will be described. The drum drive control reference signal generating means 89 sends a reference signal (clock) to the M frequency dividing means 88. The N frequency dividing means 87 previously stores the frequency division value data (N) from the system control means 14.
In the M frequency dividing means 88, the data (M) of the frequency dividing values from the system control means 14 are stored in advance.

The N frequency dividing means 87 divides the drum rotation signal (clock generated by rotation of the drum) by N and sends it to the phase comparing means 86. The M dividing means 88 divides the reference signal from the drum drive control reference signal generating means 89 by M and sends it to the phase comparing means 86.

The phase comparison means 86 compares the phases of the frequency-divided signal from the N-frequency-division means 87 and the frequency-divided signal from the M-frequency-division means 88, and the signal having the pulse width of the difference is smoothed by the smoothing means 85.
Send to. The smoothing means 85 converts the pulse width signal into a voltage and sends it to the drum driving means 13 as a drum driving control signal.

The drum driving means 13 rotates the drum on which the print paper is placed in response to the drum drive control signal. Therefore, the rotation of the drum can be changed by changing the data of the frequency division value (N) stored in the N frequency division means 87 and the data of the frequency division value (M) stored in the M frequency division means 88.

According to the present embodiment, the amount of movement of the print paper with respect to the print head can be varied, so that the aspect ratio of the image data can be freely changed and shot, and the print image rotated by 90 ° is stretched vertically. , There is an effect that can be printed without stretching horizontally.

Next, FIG. 15 is a block diagram showing the print head control signal generating means in the card printing video printer as the fourth embodiment of the present invention, as in FIG. That is, the print head control signal generating means 73 of FIG. 15 is one of the constituent elements of the print data converting means 10 shown in FIG.

In the present embodiment, as described above, since the amount of movement of the print paper with respect to the print head is variable, the print density may change. Therefore, in order to solve this, the print head control signal generating means 73 shown in FIG. 15 changes the energization time data in accordance with the drum rotation speed. Figure 15
In the figure, 90 is a head data latch generating means, 91 is a head clock generating means, 92 is an energizing strobe generating means, and 93 is an energizing time data storing means.

The operation of FIG. 15 will be described. The head clock generation means 91 inputs a 1-line print start signal, generates a head clock for transferring print data to the print head, and sends it to the print head 11. When the generation of the head clock for one line is completed,
The head clock generation means 91 generates a head clock generation end signal and sends it to the head data latch generation means 90.

The head data latch generation means 90 generates a head data latch signal for transferring the print data to the latch circuit in the print head 11 and sends it to the print head 11. When the generation of the head data latch signal is completed, the head data latch generation means 90 generates a head data latch end signal and sends it to the head clock generation means 91 and the energization strobe generation means 92. The head clock generating means 91 generates a head clock as in the above-mentioned operation.

The energizing strobe generating means 92 generates a strobe signal based on the energizing time data from the energizing time data storing means 93 and sends it to the print head 11. The energization time data storage means 93 stores in advance energization time data corresponding to the drum rotation speed. The energization time data storage means 93 generates energization time data from the drum drive frequency division data from the system control means 14 and sends it to the energization strobe generation means 92. As the energization time data storage unit 93, for example, a read only memory may be used.

In this way, since the print density can be controlled by the moving speed of the print paper, it is possible to prevent the print density from changing when the moving amount of the print paper with respect to the print head is changed. There is an effect that can be.

Next, a fifth embodiment of the present invention will be described with reference to FIG. Also in the present embodiment, when the aspect ratio of one dot of the print image printed by the print head is not 1: 1, when the image is rotated by 90 ° and printed, the aspect ratio of the dot does not extend vertically and horizontally. This is an example in which printing can be performed while keeping the same. As a method, D /
This is performed by providing A conversion means and A / D conversion means and re-sampling the image data read from the image storage means.

FIG. 16 is a block diagram showing the entire card printer video printer according to the fifth embodiment of the present invention. In FIG. 16, 94 is D / A conversion means, and 95.
Is A / D conversion means, and 96 is A / D clock generation means. In addition, the same components as those in FIG. 1 are designated by the same reference numerals.

The operation of FIG. 16 will be described. The D / A conversion means 94 converts the digital image data from the image storage means 3 into analog data at the same cycle as the cycle of reading the image data from the image storage means 3, and the A / D conversion means 9
Send to 5.

The A / D clock generation means 96 generates a resampling clock under the control of the system control means 14 and sends it to the A / D conversion means 95. The A / D conversion means 95 converts the analog data from the D / A conversion means 94 into digital data again by the re-sampling clock from the A / D clock generation means 96. Other operations are the same as those in FIG.

By the above operation, the print data is resampled and input to the print data conversion means 10, so that the aspect ratio of the image data can be changed. Therefore, when the aspect ratio of one dot of the print image is not 1: 1, there is an effect that when the image is rotated by 90 ° and printed, the aspect ratio can be maintained without stretching in the vertical and horizontal directions.

Next, a sixth embodiment of the present invention will be described with reference to FIG. This embodiment is characterized in that an interpolation means is provided between the image storage means and the print data conversion means to digitally resample the print data.
FIG. 17 is a block diagram showing the entire card printer video printer according to the sixth embodiment of the present invention. Figure 1
In 7, the reference numeral 97 is an interpolation means. In addition, the same components as those in FIG. 1 are designated by the same reference numerals.

The operation of FIG. 17 will be described. The interpolation means 97 resamples the image data from the image storage means 3 (details will be described later) and sends it to the print data conversion means 10. The operation of other blocks is the same as the operation described in FIG.

In this way, by digitally resampling, when the aspect ratio of one dot of the printed image is not 1: 1, when the image is rotated by 90 ° and printed, the deterioration of the image quality is minimized. , The image is vertical,
It has the effect of printing without stretching laterally.

Next, the detailed operation of the interpolation means 97 in FIG. 17 will be described with reference to FIGS. 18 and 19. Figure 1
8 is a block diagram showing a specific example of the interpolating means 97 in FIG. 17, and FIG. 19 is a timing chart showing timings of main signals in FIG.

In FIG. 18, 110 is a 4-bit counter, 111 is a resampling clock generating means, 112
Is multiplication means, 113 is latch means, 114 is calculation means for calculating 16-N, 115 and 116 are latch means,
Reference numeral 117 is a calculating means for calculating N / 16, 118 is a calculating means for calculating (16-N) / 16, and 119 is a calculating means for calculating (A + B) / 2.

In FIG. 19, 120 is the image data read clock for printing, 121 is the output of the latch 115, 122 is the output of the latch 116, and 123 is the multiplication means 1.
12 outputs, 124 is the resampling clock, 125
Is print data after resampling.

The operation of FIG. 18 will be described with reference to FIG. The resampling clock generation means 111 uses the clock cycle control data from the system control means 14 to
A resampling clock (125 in FIG. 19) is generated and sent to the latch means 113.

The frequency multiplication means 112 uses a clock having a frequency 16 times higher than that of the print image data read clock (see FIG. 1).
9) 123) and sent to the 4-bit counter 110. The 4-bit counter 110 is reset by the print image data read clock, counts the clock from the frequency multiplication means 112, and latches the count value.
Send to 3.

The latch means 113 latches the count value (N) from the 4-bit counter 110 by the resampling clock and sends it to the calculating means 114 and the calculating means 117. The calculation means 114 calculates 16-N and sends it to the calculation means 118.

The latch means 115 latches the print image data by the print image data read clock and sends it to the latch means 116 and the calculation means 117.
The latch means 116 latches the print image data from the latch means 115 by the print image data read clock and sends it to the calculation means 118.

The calculation means 117 calculates N / 16 for the data (N) from the latch means 113 and sends it to the calculation means 119. The calculation means 118 is the calculation means 114.
(16-N) / 16 for the data from (16-N)
Is calculated and sent to the calculation means 119. Calculation means 11
Numeral 9 calculates (A + B) / 2 for the data A from the calculation means 117 and the data B from the calculation means 118, and outputs it as resampling data (125 in FIG. 19). The above operation allows digital resampling.

[0109]

As described above, according to the present invention, even when the image to be printed is a landscape image, the image to be printed is rotated by 90 ° and printed, so that the image can be printed on one sheet of printing paper. The same image can be printed twice.

Even when the image to be printed is the image displayed on the entire monitor screen, the image to be printed is reduced and rotated by 90 ° and printed, so that the same image is printed on one print sheet. It can be printed twice. Further, since two different images can be printed on one print sheet, there is an effect that one different image can be obtained.

Further, since the amount of movement of the print sheet with respect to the print head can be varied, when the image to be printed is rotated by 90 ° and printed, the image to be printed does not stretch horizontally or vertically. There is an effect.

Further, since the energization time to the print head can be changed by the printing speed, when the amount of movement of the printing paper is changed, it is possible to always print at a constant density without changing the print density. There is.

[Brief description of drawings]

FIG. 1 is a block diagram showing an entire video printer as a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing an image of an image printed by a conventional card printer video printer.

3 is a schematic diagram showing an image of an image printed by the card printer video printer of FIG. 1. FIG.

FIG. 4 is a schematic diagram showing a state of arrangement of image data stored in the image storage means 3 in FIG.

5 is a block diagram showing a specific example of an image storage control means 6 in FIG.

FIG. 6 is a timing chart showing the timing of main signals in FIG.

FIG. 7 is a block diagram showing a specific example of the area signal generation means 30 in FIG.

FIG. 8 is a block diagram showing another specific example of the image storage control means 6 in FIG.

9 is a timing chart showing the timing of main signals in FIG.

FIG. 10 is a block diagram showing print data converting means in a card printer video printer as a second embodiment of the present invention.

11 is a block diagram showing a specific example of the frame adding means 68 in FIG.

FIG. 12 is a schematic diagram showing an image of an image printed by a card printing video printer as a third embodiment of the present invention.

FIG. 13 is a block diagram showing an image storage unit and its peripheral circuit in a card print video printer as a third embodiment of the present invention.

FIG. 14 is a block diagram showing a drum drive control means in a card printer video printer as a fourth embodiment of the present invention.

FIG. 15 is a block diagram showing a printhead control signal generating means in a card printer video printer as a fourth embodiment of the present invention.

FIG. 16 is a block diagram showing an entire card printer video printer according to a fifth embodiment of the present invention.

FIG. 17 is a block diagram showing an entire card printer video printer as a sixth embodiment of the present invention.

18 is a block diagram showing a specific example of an interpolation means 97 in FIG.

FIG. 19 is a timing chart showing timings of main signals in FIG.

[Explanation of symbols]

3 ... Image storage means, 6 ... Image storage control means, 7 ... Area signal addition means, 10 ... Print data conversion means, 12 ...
Drum drive control means, 20 ... Address selection means, 21 ...
Print read row address generation means, 22 ... print read column address generation means, 24, 27 ...
Addition means, 25 ... Row address counter, 28 ... Column address counter, 26, 29 ... Addition value storage means, 30
... area signal generating means, 50, 51 ... frequency dividing means, 61,
62 ... Image storage means, 68 ... Frame addition means, 87 ... N frequency division means, 88 ... M frequency division means, 93 ... Energization time data storage means, 94 ... D / A conversion means, 95 ... A / D conversion means, 9
7 ... Interpolation means.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical indication location H04N 5/91 H 8324-5C (72) Inventor Akihiro Haru 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Hitachi Ltd. Video Media Research Laboratory (72) Inventor Tatsuya Ishihii 292 Yoshida-cho, Totsuka-ku, Yokohama City, Kanagawa Prefecture Hitachi Ltd. Video Media Research Laboratory

Claims (12)

[Claims] 1. An image storage means, and image storage control means for writing image data into the image storage means and reading the written image data from the image storage means.
Digital / analog conversion means for converting the read image data into an image signal, a monitor for displaying an image on a screen based on the converted image signal, a print sheet moving means for moving a print sheet, Print data conversion means for converting the read image data into print data, a print head for printing an image on the print paper based on the converted print data, the image storage control means, and the print data conversion. Means and a system control means for controlling the print moving means, and when displaying an image on the screen of the monitor, the written image data is directly read by the image storage control means, and the print paper is used. When printing an image on top, the image displayed on the screen of the monitor A card print video printer in which an image to be printed is set, and image data corresponding to the set image is read out from the written image data by the image storage control unit. Has a read address for print generating means for generating a read address for printing given to the image storing means when an image is printed on the print paper, and the read address generating means for print generates a row address. Row address generating means, column address generating means for generating a column address, and address selecting means for sequentially selecting the generated row address and column address and outputting the read address for printing. The address selecting means displays the image on the monitor. In the image displayed above, when the set longitudinal direction of the image matches the horizontal direction of the screen, the order of selecting the row address and the column address is set so that the set longitudinal direction of the image is A video printer for card printing, characterized in that the case is the same as that in the vertical direction of the screen. 2. The card printer video printer according to claim 1, further comprising area signal generating means for generating an area signal in the image storage control means,
Area signal addition means for adding the generated area signal to the read image data is provided between the image storage means and the digital / analog conversion means, and the area signal addition means adds the area signal to the image data of the monitor. On the screen,
A video printer for card printing, characterized in that an area in which an image to be printed exists is displayed so that the image to be printed can be confirmed. 3. The card print video printer according to claim 2, wherein the image storage control means generates a monitor read address to be given to the image storage means when displaying an image on the screen of the monitor. And an area data storage means for storing upper, lower, left, and right area data, and the stored upper address,
Comparing means for comparing the lower, left, and right area data with the generated monitor read address, and a logical operation means for performing a logical operation based on the comparison result by the comparing means to generate the area signal. A video printer for card printing, comprising: 4. A video printer for card printing according to claim 1, wherein a start position of a row address is stored in said print read address generating means.
And a second addition value storage means for storing the start position of the column address. 5. The card print video printer according to claim 1, wherein the print read address generating means includes a first clock dividing means for dividing a clock supplied to the row address generating means. And a second clock frequency dividing means for frequency-dividing the clock given to the column address generating means. 6. The video printer for card print according to claim 1, further comprising a plurality of the image storage means. 7. The video printer for card printing according to claim 1, wherein, when an image is printed on the print paper, the print data converting means is provided so that a frame is also printed outside the image to be printed. Within
A video printer for card printing, characterized in that it is provided with a frame addition means for taking in the read-out image data and adding fixed data. 8. The card printer video printer according to claim 7, wherein the frame adding means includes upper, lower, left,
Frame setting data storage means for storing the right frame setting data,
Comparing means for comparing the stored upper, lower, left, and right frame setting data with the number of captured image data; and a logical operation means for performing a logical operation based on the comparison result by the comparing means, A video printer for card printing, comprising: a data selecting means for selecting and outputting either one of the image data and fixed data taken in based on a calculation result by a logical operation means. 9. The card printer video printer according to claim 1, wherein the print paper moving means divides a comparison signal corresponding to a moving speed of the print paper, and a reference signal. Based on the comparison result by the phase comparison means for phase comparing the frequency-divided comparison signal with the frequency-divided reference signal. Means for generating a control signal for controlling the movement of the sheet, and by changing the frequency division ratio of the first and second frequency dividing means,
A video printer for card printing, wherein the amount of movement of the print paper is variable. 10. The card printer video printer according to claim 1, wherein the print data converting means energizes the print head as the print data according to a moving speed of the print paper by the print paper moving means. A video printer for card printing, comprising a printhead control signal generating means for varying data relating to time. 11. The video printer for card printing according to claim 1, wherein the read image data is digitally / analogically converted into an image signal between the image storage means and the print data conversion means. Card print provided with digital / analog conversion means and print analog / digital conversion means for analog / digital converting the image signal converted by the print digital / analog conversion means into image data Video printer. 12. The card printer video printer according to claim 1, further comprising an interpolating unit that interpolates the read image data between the image storing unit and the print data converting unit. Video printer for card printing, characterized by.