KR0132868B1 - Printing method and apparatus - Google Patents

Abstract

A printer is disclosed for providing a photographic quality image without edge margin preventing waste of the paper and contraction, cutting, or distortion of the image. The paper (53) in the paper tray (54) which is elevated by an elevating means (58) is adhered to the belt (60) by static electricity generated by switching (56) on. The paper on the belt is again impressed on the belt while being fed to the initial printing zone (64) by a roller (55). The distance between the initial feed position and the initial printing zone, and the number of rotations of the belt shaft (59) are calculated. The thermal transfer head (51) impresses the leading edge of the ink film (63) and the paper (53) onto the belt and begins to print. After printing, the switch (56) is off to remove the electricity between the belt and the paper which is discharged through the discharger (67) by blades(66)

Description

Printing method and device

1 is a plan view of a recording sheet showing a printing area printed by a conventional printer.

2 is a side view of a drum printer shown in order to explain a conventional printer.

3 is a plan view of a recording sheet showing a printing area printed by a printer according to the present invention.

4 is a side view of a printing method and printing apparatus showing a state in which recording paper is fed in accordance with the printing method and apparatus according to the present invention.

5 is a side view of a printing method and a printing apparatus showing a state in which recording paper is fed according to the printing method and apparatus according to the present invention.

6 is a side view of a printing method and printing apparatus showing a state in which recording paper is printed according to the printing method and apparatus according to the present invention;

7 is a side view of a printing method and a printing apparatus showing a state in which recording paper is discharged in accordance with the printing method and apparatus according to the present invention.

8 is a side view of a printer equipped with a plurality of printheads according to a printing method and apparatus according to the present invention.

* Explanation of symbols for main parts of the drawings

1: Figure 2: Margin

3: recording paper 4: drum

5: clamping mechanism 6: initial printing position

7: Feed roller 8: Guide roller

9: feed cassette 10: printhead

11 heating element 12 ink film

14 capstan roller 15 head adjusting means

49: Figure 50: Letters

51: printhead 52: thermal element

53: recording paper 54: recording paper cassette

55: first roller 56: switch

58: moving means 59: belt feed shaft

60: belt 61: recording paper cassette

62: head adjusting means 63: ink film

64: initial recording position 65: inkjet head

The present invention relates to a printing method and apparatus for a printer, and more particularly, to a printing method and apparatus for printing a printer without a margin at the top and bottom of a recording sheet when printing prints pictures and characters on a recording sheet, and optionally, a drawing and a character. The present invention relates to a printing apparatus and method capable of printing by means of printing. There are many ways to print pictures and text on a sheet of paper with a printer.

For example, there is a method of printing on a recording paper located below the ink film by using a thermal transfer head for converting data into heat and an ink film under the thermal transfer head. Such a printer is called a thermal transfer printer, and has a form of overprinting three times the disassembled images of yellow, magenta, and cyan that have been separated in order to realize full color. That is, a device in which the ink of the ink film, which has received the heat of the thermal transfer head, is sublimated and printed on the recording paper. When the color of each ink film is printed on one recording paper, it is printed in color.

In printers, all printers can print both letters and pictures, but there are printers that print relatively well, but they are not clean and hard to color. For example, there are a laser printer, a bubble jet printer, an ink jet printer, a dot printer and the like. That is, these printers can print pictures (color or black and white) and text (color or black and white), but when printing pictures, they are mainly used to print text because of poor image quality, and the speed and quality of the text are excellent. You can do it. The printed matter printed in color by the thermal transfer printer is as sharp as when the film taken by the camera is printed on photo paper. Therefore, input an image with an image input device such as a scanner and modify and combine the input image using a computer program to compose a new image and output it in the form of a photo again, or reproduce a virtual object with computer graphics again. Output in the form of a photograph, or output an image of an enlarged electron microscope as image data, and output in the form of a photograph, or color X-ray film and tomography images of a medical device. Head Project) can be output to film. Then, the image data can be transmitted over a long distance through a wire, so that the received image data can be again made into a print like a photograph of a clear image.

Such thermal transfer printing, which can print printed matters such as photographs, has recently attempted to be used as a substitute for photographs. Therefore, picture quality and form are required.

1 is a plan view of a recording sheet showing a printing area printed by a conventional thermal transfer printer. As shown, in printing the image data on the recording paper, as shown in Fig. 1A, the upper and lower bags 2 are left and printed on the recording paper, or as shown in Fig. 1B. As shown, the picture was printed skewed.

As shown in FIG. 3, when printing the picture 49 and the text 50 on the same recording paper, the picture quality and the print quality of the picture 49 and the text using the above-described inkjet head are not good. When using a thermal transfer print, the image quality is excellent. However, the disadvantage is a high printing cost, especially a slow printing speed.

As described above, when the image is recorded on the recording paper, the reason why there is no space left on the recording paper is as follows. In the case of the drum-type printer, as shown in FIG. 2, the drum ( By using the clamp 5 for close contact with 4), it was difficult to print the leading end of the recording paper 3 closely attached to the drum 4 by the clamp 5. Therefore, when printing an image, not only the top and bottom margins are aesthetically unsatisfactory, but also the recording paper is wasted, and when a picture inputted on a scanner is printed with this type of printer, the image to be printed on the top and bottom is reduced or printed for the above reason. This was inevitably cut, and when printing pictures and / or letters on the same recording paper, it could not be selectively printed according to the cost and / or importance of the pictures and letters.

Accordingly, an object of the present invention is to eliminate the printing of margins and skewed pictures of printed matters when printing an image, not only to prevent waste of recording paper and to reduce or cut pictures, but also to produce printed blanks such as aesthetic photographs. To provide a printer to provide. Another object of the present invention is to provide a printing method and a printing apparatus of a printer that can selectively print according to its cost and importance when printing pictures and / or letters on a recording sheet.

A printing method according to the present invention for achieving the above object is a printing method for printing image data on a recording paper, comprising the steps of: supplying the recording paper to be adsorbed on the electrostatic adsorption adsorption member, and the adsorption so that the supplied recording paper is adsorbed Charging the member, rotating the suction member with the recording paper adsorbed thereon, first printing step of printing the image data with the first printer head from the front end to the rear end of the rotating transfer paper, and the image; And discharging the printed recording sheet from the suction member. In addition, the printing may include at least one printing means including one thermal transfer printer head to selectively or multiple-stage overprint.

According to another aspect of the present invention, there is provided a printing apparatus, which is rotatably supported by at least one rotating body that is rotationally driven to form a belt, and an adsorption member for adsorbing recording paper fed thereto, and adsorbed to the adsorption member by rotation thereof. And printing means for printing an image on the recording paper to be transported, and printing means for printing the image on the recording paper which is adsorbed by the suction member and transported by the rotation thereof. And it characterized in that the printing means is provided with at least two print heads are arranged in order to enable selective or stepwise multi-printing.

The present invention configured as described above can eliminate the printing of blanks and skewed pictures of printed matters, preventing waste of recording paper and shrinking and cutting of pictures, as well as providing printed matters without margins such as aesthetic pictures. . And when printing pictures and / or letters on record sheets, they can be selectively printed according to their cost and importance.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 is a side view showing a state before recording paper is fed in the printer printing method and apparatus according to the present invention. As shown, the heat transfer head 51 for transferring image data to heat is provided on the heat generating element 52 for transferring heat, and on the right side (on the drawing) of the heat transfer head to move the heat transfer head from side to side. The head adjusting means 62 for pressurizing the recording paper 53 on the belt 60 is provided, and the ink film 63 is positioned between the thermal transfer head 52 and the belt 60. In order to adsorb and guide the recording paper, the belt 60 in which static electricity is generated is provided with a roller 55 and a belt feed shaft 59 provided with switches for turning on / off the power to generate or remove static electricity. The roller is installed on the outside of the belt and serves as an electrode for supplying power while rotating together with the belt. The belt feed shaft 59 rotates the belt at a constant speed and serves as an electrode for supplying power to the electrostatic generator installed in the belt.

At the lower side of the belt, a recording paper cassette 54 for supplying recording paper 53 and moving means 58 positioned below the recording paper cassette for moving the recording paper cassette up and down are provided. Then, a blade 66 is switched to arrange the printed recording paper so as to arrange the recording paper outlet 67. The printing apparatus and method of the printer of the present invention configured as described above operate as follows.

As shown in FIG. 4, the recording paper cassette 54 is raised by the moving means 58, and when the switch 56 is turned on, static electricity is generated in the belt 60, and the recording paper cassette 54 Attach the recording paper 53 on. The recording paper cassette 54 is lowered by the moving means 58. Thus, as shown in the fifth, the recording paper is a single recording sheet located at the top of the recording paper cassette, but is attached to the belt in which the static electricity is generated.

6 is a side view showing a state when the recording sheet reaches the initial recording position in the printing method and apparatus according to the present invention. As shown, the adsorbed recording paper is once again pressed onto the belt 60 by the roller 55 while moving to the initial recording position 64 as the belt rotates by the belt feed shaft 59. In addition, when the recording sheet is moved to the initial recording position 64, the thermal transfer head 51 is provided with a head adjusting means in consideration of the distance from the feeding position to the initial recording position 64 and the rotation speed of the belt feed shaft. 62), the ink film 63 and the tip of the recording paper are pressed onto the belt to print one color of various colors from the tip of the recording paper. Then, the recording paper is printed with the remaining colors while rotating the closed curve of the belt 60. As shown in FIG. 7, when the switch 56 is turned off, the static electricity of the belt 60 disappears, and the remaining static electricity The recording sheet attached to the belt 60 is discharged to the discharge port 67 by the blade 66.

8 is a side view of a printer provided with a plurality of printheads showing yet another preferred embodiment according to the present invention (the same numbers are used for the same parts used in the preceding examples above). As shown, the belt is provided with a thermal transfer head 51 for transferring heat to the belt 60 and printing thereon, and an inkjet head 65 for printing by spraying ink. Therefore, by using the thermal transfer head 51 when necessary to print a clear image quality and the inkjet head 65 when printing speed and economical efficiency, by printing using the head selectively according to the purpose and purpose, Depending on the purpose and purpose, the head can be used to easily print pictures and texts. Further, letters and pictures are printed horizontally or vertically on the recording paper like a plotter using an inkjet head moving in a direction perpendicular to the movement of the belt in the plane formed on the belt 60 and the movement of the belt 60.

As described above, the present invention, when printing a picture or text on the recording paper, there is no top and bottom margins, and there is no crooked picture and text printing, thereby preventing the printed picture to be reduced and the cutting of the picture, and the creation of a margin It is possible to prevent the waste of the recording paper due to the above, and to provide printed matter in the same form as the aesthetic view. In addition, it is possible to reduce the production cost by reducing the components such as the roller, which is in close contact with the drum and the recording paper feed roller required when feeding the recording paper. In addition, by using a printer that prints only letters and a printhead that prints clear pictures, it is possible to print pictures and texts in parallel or separately, and to provide a printer that can print horizontally or vertically with minimal expense.

Claims (9)

A printing method of printing image data on a recording sheet, the method comprising: supplying the recording sheet to be sucked by an electrostatic adsorption member; charging the suction member to adsorb the supplied recording sheet; And a first printing step of printing the image data with the first printer head from the front end to the rear end of the recording paper to be rotated, and disposing the recording paper on which the image is printed from the suction member. A printing method characterized by the above-mentioned. The guide roller according to claim 1, wherein the adsorption member is wound around two support rollers to be rotated and guided to rotate in contact with the outer surface of the adsorption member by rotating one of the two rollers. And a printing method for performing the charging step by applying power between the guide roller and the support roller on one side. And an adsorbing member which is rotatably supported by at least one rotating body which is rotationally driven to form a belt and adsorbs recording paper fed thereto, and printing means for printing an image on the recording paper adsorbed by the adsorbing member and conveyed by the rotation thereof. Printing apparatus characterized in that the. 4. The printing apparatus according to claim 3, wherein the printing means has at least two print heads disposed around the suction member so as to enable selective or stepwise multiple printing. A printing apparatus according to claim 3, characterized by comprising static electricity generating means for generating static electricity in the adsorption member such that the adsorption member adsorbs the recording paper with electrostatic force. The printing method according to claim 1, wherein the discharging step removes the charged state of the adsorption member and inserts a blade between the adsorption member and the recording paper to roll out the recording paper. The printing method according to claim 1, further comprising another recording step to at least one other printer head for recording another image on a recording sheet on which a desired image is printed by the recording step. A printing method according to claim 1, wherein the supplying step is performed by storing the recording paper so as to be stacked on the cartridge and pushing the recording paper stored in the cartridge toward the suction member step by step. The printing apparatus according to claim 3, further comprising a plotter means installed on a plane of the adsorption member between the rotating body and the rotating body to move and print the printing means while moving in the X and Y axes thereon.