KR0141210B1 - Complex image printing apparatus and method - Google Patents

Abstract

The present invention relates to a composite image printing apparatus and a method thereof, comprising: a color printer equipped with a film scanner, comprising: between a scanner unit and a line memory so as to divide and print a composite image having a plurality of identical images without using a frame memory; And a latch unit configured to output latch pulses so that the data interlaced by the scanner unit can be accurately stored on the address of the line memory under the control of the line memory address control unit. Scan one line of data, store the scanned one line data in the line memory, apply it to the thermal printhead control unit, and perform printing. Interlaced scan of the next one line of data, scanned 1 After the memory data of the person were to repeat that is applied to the thermal print head controller. This invention can be used for all color printers equipped with a film scanner, and is particularly useful for printing ID photographs.

Description

Composite image printing device and method

1 is a block diagram showing a conventional composite image printing apparatus;

2 is a diagram showing a scanner sampling position of a document and a moving direction thereof;

FIG. 3 is a diagram showing a map structure of the frame memory shown in FIG. 1;

4 is a block diagram showing a composite image printing apparatus according to the present invention;

FIG. 5 is a diagram showing the state of line data stored in the line memory shown in FIG. 4 when printing a composite image divided into four; FIG.

FIG. 6 is a diagram showing, in pixels, the result of printing a composite image divided into four parts;

FIG. 7A shows output data obtained by scanning one line of data into the line memory shown in FIG. 4, and b through d show latch clocks, data and addresses when a single image for a is printed. Are drawings showing latch clocks, data and addresses when printing a composite screen divided into four for a;

8 is a diagram showing an address in the line memory when one line is read into the line memory, b is output data of the line memory when one screen is printed by a, and c is divided into four by a Output data of the line memory when the composite screen is printed.

* Explanation of symbols for main parts of the drawings

2: scanner control unit 4: scanner unit

6: plane memory control unit 8: frame memory

10: line memory address control unit 12: line memory

14: TPH angbu 16: printer drive

18: system control unit 20: latch unit

21: scanning position controller 22: complex scanning position controller

160: TPH

The present invention relates to a composite image printing apparatus and a method thereof, and more particularly to a color printer equipped with a film scanner, which is divided into composite images having a plurality of identical images without using a frame memory. The present invention relates to a composite image printing apparatus and a method for printing the same.

A conventional composite image printing apparatus will be described with reference to FIG. 1.

1, the scanner control part 2 which controls the operation | movement of the scanner part 4 is comprised in the front part of the scanner part 4, and in the rear end of the scanner part 4 is shown. The frame memory 8 is configured to store data scanned by the scanner unit 4 according to the control of the scanner control unit 2, except that data per frame is stored at the front end of the frame memory 8. The frame memory control section 6 is configured, and a line memory 12 for storing data applied from the frame memory 8 in units of one line at the rear end of the frame memory 8 is configured.

In addition, the line memory address control unit 10 which allocates an address on the line memory 12 in order to store in the line memory 12 the data of one line unit applied from the frame memory 8 at the front end of the line memory 12. The rear end of the line memory 12 is adapted so that the thermal print head 160 may recognize data of one line unit stored in the line memory 12. A TPH control unit 14 for converting into a signal is configured, and at the rear end of the TPH control unit 14, a printer driver 16 including a TPH 160 to drive a printer is configured.

In addition, the system controller 18 is connected to the scanner controller 2, the frame memory controller 6, the TPH controller 14, and the printer driver 16 to control the operation of the entire system.

The configuration as described above will be described in detail with reference to FIGS. 2 and 3.

As shown in FIG. 2, sampled data of an original is extracted by the scanner unit 4 and stored in the frame memory 8 as shown in FIG. 3 at a 1: 1 ratio. Here, X shown in FIG. 2 represents the scanner sampling position of the original, and when printing data for one image, the total number of pixels scanned is M × N. In addition, Dij of FIG. 3 represents data sampled at the R _i L _j point shown in FIG.

In the case of printing data for one image stored in the frame memory 8, for example, one line unit of all the data shown in FIG. 3, for example, the first line is read in line units consisting of D _oo ~ D _no . It stores in the memory 12. In addition, when the data of one line unit stored in the line memory 12 is applied to the TPH control unit 14, the TPH control unit 14 uses the TPH configured in the printer driving device 16 by using the applied day difference unit. After processing 160 to generate heat appropriately for the data value, it is applied to the printer driving device 16, whereby one line of data is printed.

On the other hand, in the case of printing a composite image (in this case, a composite image divided into four for convenience), first, the frame memory 8 is divided by the number of composite images, and then four images are scanned for the scanner unit 4, respectively. And stored in the divided frame memory 8 as shown in FIG. Data stored in the frame memory 8 is read and stored in the line memory 12 as shown in FIG. That is, the first line to be printed is data corresponding to Lo of FIG. 6, and D _oo , D ₂₀ , D ₄₀ . Data is read from the frame memory 8 in the order of D _no , D _oo , D ₂₀ , D ₄₀ ... D _no .

In this order, L _o → L ₁ → L 2 → L ₃ . → L _{(M / 2)} → L _{(M / 2) + 1} → L _{(M / 2) + 2} → L _{(M / 2) + 3} . → After reading and printing all the L _M , the composite image is printed.

By the way, in the case of printing data for one image, the data can be printed directly from the scanner to the line memory even without a frame memory device. However, when printing a composite image, a frame memory device is required. In this case, since the price of the frame memory device is very high, there is a problem that the price of the product increases due to the frame memory device.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to control a position to be scanned from a complex scanning position controller and to print a composite image without using a frame memory by using a line echo address controller. The present invention provides a composite image printing apparatus and a method thereof.

A feature of the composite image printing apparatus according to the present invention for achieving the above object is a scanner unit for scanning one line of data, and a composite scanning position controller for controlling the position of the data scanned by the scanner unit A scanner control unit, a line memory for storing one line of data, a line memory address control unit for controlling an address of the data stored in the line memory, and a printer capable of converting data stored in the line memory to a printer and then converting the printer. A composite image printing apparatus having a thermal printing ed control unit applied to a driving apparatus, the composite image printing apparatus comprising: a composite image printing apparatus; A data interposed between the scanner unit and the line memory, so that data interlaced by the scanner unit can be accurately stored on an address of a line memory under the control of the line memory address control unit, and N ² (N is equal to or greater than 1) When printing data corresponding to one image of a composite image composed of natural numbers), a latch unit for outputting a latch pulse having a pulse width of N times the latch pulse outputted when printing one data composed of one image is printed. It is at that point.

In addition, a feature of the composite screen printing method according to the present invention includes: scanning data for one line of data corresponding to one image; When printing a composite image consisting of N ² (N is one or more natural numbers), when printing a single image composed of one screen, one line scanned by a latch pulse having N times the pulse width compared to the pulse width that is pulled out Printing after storing the data of " Interlacing the next line of data at regular intervals; By repeatedly performing the operation of printing after scanning the data for one line on the address designated by the latch pulse, it is possible to print a composite image on the same image without a frame memory.

In the present invention, when scanning a composite image composed of N ² , interlaced scanning is performed only one line per N lines, and interlaced scanning returns to the initial position when scanning is completed up to the last line and repeats the interlaced scanning N times. It is desirable to perform. In addition, the line memory is divided into N in a composite image composed of N ² , and when scanning one line of data in a composite image divided into N ² , interlacing one data per N, it is to be interlaced It is preferable to store the same scanned data one by N in the divided block.

Hereinafter, a preferred embodiment of a composite image printing apparatus and a method thereof according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 is a block diagram showing a composite image printing apparatus according to the present invention. Since the same parts as those of FIG. 1 have the same reference numerals, detailed descriptions thereof will be omitted.

Referring to FIG. 4, a frame memory controller 6 which receives an control signal from the system controller 18 of FIG. 1 and designates an address to store data for one image in the frame memory 8, and a frame memory controller A scanner having a compound scanning position controller 22 which removes the frame memory 8 storing data for one image in accordance with the control signal of (6) and sets the position of the line scanned by the scanner section 4; The line memory for controlling the position of the line scanned by the control unit 2 and the line memory address control unit 10 and the position of the data to be stored in the line memory 12 in the same manner, and storing the data for the scanned one line. A control signal is received from the line memory address control unit 10 between the lines 12, and a latch pulse is output in accordance with the position of the data scanned from the scanner unit 4, thereby detecting a single line of scanned data. Which was composed of the latch portion 20 a so that it can be stored correctly in the memory 12. The rest of the configuration is the same as in FIG.

Referring to the configuration as described above in more detail as follows. Here, it is assumed that the number of pixels for the entire image is the same M × N as the number mentioned in the prior art.

First, in the case of printing data for one image, the longitudinal axis direction of the data shown in FIG. 2 under the control of the scanner controller 2, that is, Y ₁ , Y ₂ , Y ₃ . Scan in the order of Y _n and in the horizontal axis direction, that is, L ₁ , L ₂ , L ₃ ,. Scan the document while feeding it with L _n . In this case, the line memory 12 repeatedly stores and reads data transmitted from the scanner unit 4 in units of one line. At this time, a control signal corresponding to one image printing is output from the line memory address control unit 10, and the control signal is applied to the latch unit 20 so that the line period of data scanned by the scanner unit 4 is one line. Is set.

That is, L ₀ line data reading → L ₀ line data storage → L ₁ line data reading → L ₁ line data storage → L ₂ line data reading → L ₂ line data storage → L ₃ line data reading → L ₃ line data storage → … → Read L _n line data → Perform L _n line data storage.

The TPH controller 14 processes data for one line stored in the line memory 12. That is, the data of one line portion transmitted from the line memory 12 is received and converted into a TPH heating signal so that the TPH 160 generates heat according to the data value, thereby transmitting the data to the TPH 160. At this time, the printer driver 16 equipped with the TPH 160 performs an actual printing operation.

If this process is repeated to the last line (L _n ), the printing of data corresponding to one image is completed.

Next, the composite video In the case of printing (in this case will be described with respect to the composite image divided to four), and the vertical axis direction, that _{is, R 1, R 2, R} 3 ... R _n scans in the same manner as in the case of printing data for one image and extracts N data per line.

Meanwhile, the horizontal direction in the case that the moving speed of the scanning printing data of one image minutes and twice speeding _{L 0 → L 2 → L 4} → ... → Non-scanning is performed by skipping one line in the order of L _n . Here, the conveyance speed in the horizontal axis direction is controlled by receiving the complex split control signal of the complex scanning position controller 22 shown in FIG. For example, in the case of the feeder gas stepping motor, the stepping motor driving pulse is adjusted according to the complex division. At this time, the stepping motor driving pulse can be controlled manually.

When the interlaced scanning is completed up to the last line L _n , the printed position is up to L _{m / 2} in FIG. 6.

When the first interlaced scanning is completed as described above, it returns to the position of L ₀ again under the control of the complex scanning position controller 22 and then interscans the data up to the last L _m line in the same manner as above. When the second interlaced scanning is completed, the printed position is up to L _m in FIG.

On the other hand, in the line memory 12, unlike when printing data for one image, the line memory address controller 10 causes the longitudinal direction in the third axis from the scanner section 4, i.e., R ₀ ? R ₁ ? ₂ →… → One data of one line of data scanned and transmitted in the order of R _n is skipped and stored equally in the upper region and the lower region as shown in FIG. That is, A ₀ , A ( _{n / 2 + 1} ) stores the same data D _0Q , and A ₁ , A ( _{N / N + 2} ) stores the same data D _2q , respectively. By storing the same data D _nq at _{n / 2} and A _n respectively, the storage of data corresponding to one line to be printed is completed. Post-printing

The operation is the same as in the case of printing data for one image.

Meanwhile, in the case of printing data for one image, a process of scanning the data stored in the line memory 12 is as follows.

When the scanner unit 4 scans the data of the L ₀ line in FIG. 3, the output data of the scanner unit 4 is equal to a in FIG. In this case, in the case of printing the data for one image, one latch signal is applied per one data as shown in b of FIG. 7, and the output data of the latch unit 20 is shown in c of FIG. 7. Each line data is output. Each line data is allocated with one address of the line memory 12 and stored. In addition, in the case of printing the composite image divided into four, the process of storing the scanned data in the line memory 12 is as follows.

The output data of the scanner unit 4 as shown in a of FIG. 7 is applied at twice the period as compared to the case where the latch clock prints data for one image so that interlaced scanning as shown in f of FIG. The output data of the latch unit 20 is output by skipping data of one line of data one by one as shown in g of FIG.

There is output data, the address of the line memory 12 stores is assigned two each, wherein the method is stored, the two in the first output data (D _oo) is because the scanning line data, double-line memory 12 The same is stored in the address A _o A ( _{n / 2 + 1} ).

On the other hand, the timing chart when reading the data stored in the line memory shows that when data is stored on the address of the line memory 12 as shown in a of FIG. 8, data for one image may be printed. When the line memory 12 outputs the data stored in each address one by one as shown in b of FIG. As shown in FIG. 3C, the same data D _oo is output to two addresses (eg, A _o , A ( _{n / 2 + 1} )).

On the other hand, the number of divided composite images is n ² , and when the non-scanning is performed, the number of skipped lines is (n-1). That is, in the case of a composite image divided into four, n = 2, and the number of skipped lines is (2-1) = 1. N is a natural number of 1 or more.

As described above, according to the composite image printing apparatus and the method of performing the same, since the composite image can be printed without using the printing frame memory, the user who wants the composite image printing can be satisfied, and the printer This reduces the production cost of as much as the price of frame memory.

Claims (7)

A scanner control unit including a scanner unit for scanning data for a line, a complex scanning position controller for controlling the position of the data scanned by the scanner unit, a line memory for storing one line of data, and a line memory 10. A composite image printing apparatus comprising: a line memory address control unit for controlling an address of data to be converted; and a column printing head control unit for converting data stored in the line memory into data capable of driving the printer and applying the same to a printer driving apparatus; The data interposed between the scanner unit and the line memory, and the interlaced data scanned by the scanner unit can be accurately stored on the address of the line memory under the control of the line memory address control unit, N ² (N is 1 In the case of printing data corresponding to one image of a composite image composed of two or more natural numbers), a latch unit for outputting a latch pulse having a pulse width of n times with respect to the latch pulse outputted when printing the data for one image composed of one image Composite image printing device provided. Scanning data for one line of data corresponding to one image; When printing a composite image consisting of N ² (N is a natural number of 1 or more) When printing a single image consisting of one screen, one line scanned by a latch pulse having a pulse width of N times the output pulse width Printing after storing the data of " Interlacing the next one line of data at regular intervals; Method of printing composite image on the same image without frame memory by repeatedly performing the operation of printing after scanning the data for one line on the address designated by the latch pulse. The composite image printing method of claim 2, wherein the scanning of the composite image consisting of N ² is performed by interlacing only one line per N lines. The composite image printing method of claim 3, wherein the interlaced scanning is performed such that the interlaced scanning is repeatedly performed N times when the scanning is completed until the last line. The composite image printing method of claim 2, wherein the line memory is divided into N pieces of N ² composite images. The composite image printing method of claim 5, wherein the line memory interlaces one data for every N lines when scanning one line of data from the N ^two divided images. The composite image printing method of claim 5, wherein the line memory stores the scanned data one by one for the N blocks in the N divided blocks.