KR0115131Y1 - Printer - Google Patents

Abstract

BACKGROUND OF THE INVENTION [0002] The present invention relates to a printing apparatus, and in particular, to a printing apparatus of a printer for printing an image largely when the printer prints an image on a recording sheet. In recent years, the direction of the development of color printing machines is increasing in size. Conventional printers generally use standard paper, and when printing an image larger than this standard paper, a new printer suitable for the paper standard must be purchased. In general, the larger the size of the recording paper used, the larger the printer and the higher the price. (高價). Therefore, the present invention realizes a printing apparatus capable of printing twice the image and printing on both sides by a printer using a standard-size recording paper using a refeeding device.

Description

Printing equipment

1 is a side view showing the main part of a conventional printing apparatus.

2a is also a double size printed matter printed using the printing apparatus according to the present invention.

Fig. 2B is a partial sectional view of a double size recording sheet according to the present invention.

3 is a side view showing the main part of the printing apparatus according to the present invention.

4 is a perspective view showing the main part of the recording paper resupply device of the printing apparatus according to the present invention.

Fig. 5 is a side view showing a state of refeeding recording paper in the printing apparatus according to the present invention.

* Explanation of symbols for main parts of the drawings

1: recording paper 2: recording layer

3: base 10: paper feed tray

11: feeding cam 20: discharge tray

21: discharge roller 22: discharge guide

23: pinch roller 24: belt

25: reload roller 30: clamp

40: drum 41: drum surface

42: push roller 50: ink film

60: printhead

The present invention relates to a printing apparatus, and more particularly, to a printing apparatus of a printer for printing a large image when the printer prints an image on a recording sheet.

Printers for printing image data on recording paper come in various forms. For example, a thermal transfer printer uses an ink film having a sublimation ink medium and a thermal transfer head which sublimates ink onto recording paper according to image data and prints on the recording paper. In particular, the color thermal printer has a form in which the disassembled images of yellow, magenta, and cyan color are overprinted three times in order to realize full color, and the heat transfer head of the ink film receives heat. A device in which ink is sublimated and printed on a recording paper, wherein heat is applied to each of the ink films by a thermal transfer head, and the colors are printed on the recording paper, and when each ink film is used on one recording paper, it is printed in color.

The printed matter printed in the color is as sharp as when the film taken by the camera is printed on photo paper, and the image is input using an image input device such as a scanner to correct and synthesize the input image using a computer program to form a new image. Re-print a photo, reproduce virtual reality with computer graphics, or turn x-ray film and tomographic images of medical devices into colored Over Head Project films. The enlarged electron microscope image can be made into image data and printed with the same picture quality, and the image data mentioned above can be easily stored and classified in the storage device of a computer or transmitted remotely through a wire. Is a high-accuracy printer designed to produce prints such as photographs with clear images. It is the thermal transfer printer has been widely used in place of the picture, so that the quality and type of the picture is required. In recent years, the direction of the development of color printing machines is increasing in size.

1 is a side view showing the main part of a conventional printing apparatus.

As shown, the recording paper clamp 30 fed from the paper tray 10 is bitten and then the recording paper 1 is guided around the drum along the drum surface 41 as the drum 40 rotates, and the recording paper is printed head. (60) When the initial recording position at the lower side is reached, the print head 60 pressurizes the ink film 50 and the recording paper 1 coated with the ink located under the print head, and heats the ink film. The sublimated ink is transferred to a recording sheet and printed, and other colors are also printed and printed in color, and the finished recording sheet is released from the clamp 30 to be discharged. The operation is completed by discharging the recording sheet 1 by means of). The conventional printer generally uses standard paper, and when printing an image larger than the standard paper, a new printer suitable for the paper standard must be purchased. In general, the larger the size of the recording paper used, the larger the size of the printer. It is large and expensive.

Accordingly, an object of the present invention is to provide a printing apparatus capable of printing a double image and printing on both sides by a printer using a standard size recording paper.

The printing apparatus according to the present invention for achieving the above object comprises a recording sheet which is folded in half with the recording surface to be printed out, a paper feeding means for feeding the recording paper, and a conveying means for transporting the recording paper fed from the paper feeding means; Printing means for printing by using an ink medium on the recording paper conveyed by the conveying means, discharging means for discharging the recording paper recorded by the printing means, and one side of the recording paper is provided below the discharging means. Re-feeding means is provided so that the other side of the printed recording paper is printed, and each half of each recording surface of the recording paper is printed so that each image is configured to be an image when the recording paper is developed.

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

2 is a cross-sectional view of a double-size printed matter and a double-size recording paper printed using the printing apparatus according to the present invention, and FIG. 3 is a side view showing the main part of the printing apparatus according to the present invention. As shown, the printing apparatus includes paper feeding means for feeding recording paper largely, re-feeding means for refeeding recording paper printed on one side, head press means for pressing the print head to enable printing, recording paper conveying means for conveying recording paper, It is divided into ink film conveying means for conveying the ink film and discharging means for discharging the completed recording paper, the printing apparatus of the present invention has a double-size printing and double-sided printing with the re-feeding means different from the conventional method in the discharge structure There is a difference between special records.

As shown in FIG. 4, the refeeding means is provided with a discharge guide 22 for guiding the recording paper to be printed and a discharge roller 21 for discharging the recording paper guided to the discharge guide. The belt 24 and the pinch roller 23 which wrap the paper feed roller 25 by inclining the discharge tray 20 in the lower side of the discharge guide 22 are provided. The inclined discharge tray 20 is designed to slide toward the inside of the printer after the recording paper 1 is discharged. 2 is a sectional view showing a recording sheet having recording layers formed on both sides of a printing apparatus according to the present invention. As shown, by unfolding the double-sided printing sheet in Fig. (A), it is possible to obtain a recording sheet on which images of twice the normal shape have been printed. In Fig. (B), the recording layer 2 is formed on both sides, and the center of the recording sheet is formed. The base layer 3 is formed in the center, and the sheet is considered to have a cross section when the recording sheet is unfolded.

3 and 4, the recording paper 1 in the paper feed tray 10 is conveyed into the clamp 30 by the paper feed cam 11. The recording paper 1 is fixed by the clamp 30 and moved along the drum face 41 to the print head 60.

After the color of the ink film is found, the print head 60 presses the ink film 50 and the recording paper 1 onto the drum 40, converts image data into heat, and applies the ink film 50 onto the ink film 50. Print at a constant speed.

When the printing of the surface sequential color is completed, the tip of the recording sheet 1 is released from the clamp 30 and discharged to the discharge tray 20 through the discharge guide 22 and the discharge roller 21. At this time, the push roller 42 increases the safety of the discharge operation.

Referring to FIG. 5, the recording paper discharged to the discharge tray 20 is slid so as to be inserted into the reloading roller 25 by the inclined discharge tray 20. When the back printing and the double printing mode are selected in the printing apparatus, the recording sheet is re-feeded back to the position of the clamp 30 by the belt 24 and the pinch roller 23 surrounding the reloading roller 25 to print the back side. .

In this case, when the double printing mode is set in the printing apparatus, the image printed by the print head is printed from the rear part. When the back printing mode is selected, the image can be printed from the rear part or the front part according to the user's selection.

Subsequently, when the printing of the recording sheet is finished in the printhead, the tip of the recording sheet 1 is released from the clamp 30 and discharged to the discharge tray 20 through the discharge guide 22 and the discharge roller 21 to complete the printing operation. .

In addition, by using the discharge tray 20 and the re-feeding roller 25 was to be used as a sheet feeder.

As described above, the present invention can be applied to not only a thermal transfer printer but also other methods such as a bubble jet method, an ink jet method, a dot printer method, and the like, and the discharge tray can be used as a guide for manual feeding. Therefore, it is economical to print twice as many images as a printer using a standard recording paper of a certain size, and because the base layer can be shared in the recording paper, the thickness of the recording paper when unfolded compared to the conventional single-sided recording paper Can be reduced. In addition, it is economical because there is no need to install the sheet feeder separately.

Claims (4)

An ink medium is placed on a recording sheet folded in half with the printed surface to be printed out, a feeding means for feeding the recording sheet, a conveying means for conveying the recording sheet fed from the feeding means, and a recording sheet conveyed by the conveying means. Printing means for printing by using the printing means, discharging means for discharging the recording paper printed by the printing means, and re-supply means for discharging the recording paper provided on the lower side of the discharging means and printed on one side of the recording paper. And printing each half image on both recording surfaces of the recording sheet so that the recording sheet is an image when the recording sheet is developed. The paper sheet according to claim 1, wherein the refeeding means has a discharge tray having an inclined surface which is provided below the discharge means and can slide the discharged recording paper toward the inside of the printer, and the discharged recording paper installed below the discharge tray. And at least one refeed roller for feeding the conveying means. A printing apparatus according to claim 1, wherein the refeeding means has a refeeding roller to supply sheet of recording paper. The printing apparatus according to claim 1, wherein the printing means is provided with a switch for selectively printing the first and second ends of the image first.