JPH0616053U - Duplex printer - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a thermal transfer printer for postcards, which is capable of printing a photo-like image and automatically performing address printing. [Structure] A postcard is supplied from a paper feed case and prints a color image by reciprocally printing between a thermal head and a platen roller. The printed postcard is conveyed by being divided into a sheet reversing section or a sheet discharging section by a separator. The postcard sent to the reversing unit is conveyed again to the thermal head unit, and the address printing is performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a printing device capable of double-sided printing in a thermal transfer printer.

[0002]

[Prior art]

 With conventional general printers, there is no dedicated machine for printing postcards, and postcards are inserted into a general-purpose printer for printing.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned general-purpose printer, the main text is printed on one side of a postcard, and the address print on one side is handwritten by the user except for a special method. In recent years, the demand for postcards with pictures such as photographs has increased, and printers are also required to print with quality comparable to photographs.

[0004]

[Means for Solving the Problems]

 The feature is that sublimation heat transfer type color printing can be performed and address printing is automatically performed on the back side, and for that purpose a paper reversing mechanism is installed in the device.

[0005]

[Action]

 In the above structure, since the image is printed by the sublimation heat transfer method, it is possible to obtain an output having an image quality close to that of a photograph with good gradation. Also, since the address printing can be done automatically, it is possible to obtain the address of high quality characters.

[0006]

【Example】

 Hereinafter, an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram of a double-sided printer according to an embodiment of the present invention. The postcard 5 loaded in the paper feed case 7 is guided to the feed roller 12 by the rotation of the paper feed roller 6 in the direction of arrow A. The fed postcard 5 passes between the thermal head 2 and the platen roller 1 and is held by the capstan roller 8 and the pinch roller 9. Therefore, the color image is printed by reciprocating between the thermal head 2 and the platen roller 1 a plurality of times. At this time, the ink ribbon 16 is supplied from the ribbon supply roller 3, passes between the thermal head 2 and the postcard 5, and is wound around the ribbon winding roller 4. During this time, the ink ribbon 16 is driven by the ribbon feed roller 10. When the address printing is performed, the postcard 5 on which the color printing is completed is guided to the sheet folding position 13 by the sheet conveyance path separator 11. The postcard 5 reversed (in the direction of arrow F) passes again between the paper feed roller 6 and the paper feed case 7, and the address is printed between the thermal head 2 and the platen roller 1. The address printing method may be a melt heat transfer method or a heat transfer method.

The postcard 5 printed on both sides is guided to the paper discharge tray 14 by the paper transport path separator 11.

[0008]

[Effect of device]

 According to the present invention, a postcard on which a high-quality image and high-quality characters are printed can be automatically printed and obtained.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a double-sided printer according to an embodiment of the present invention.

[Explanation of symbols] 1 platen roller (printing section) 2 thermal head (printing section) 3 ribbon supply roller (printing section) 4 ribbon winding roller (printing section) 5 postcard (paper) 6 paper feed roller (paper supply section, Conveying means 7 Paper feed case (paper feeding section) 8 Capstan roller (printing section) 9 Pinch roller (printing section) 10 Ribbon feeding roller (printing section) 11 Paper feeding path separator 12 Feeding roller (conveying means) 13 Paper folding Place (paper reversal part) 14 Paper ejection tray 15 Double-sided printer device 16 Ink ribbon (printing part)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location B65H 29/58 B 9147-3F 85/00 7111-3F

Claims (1)

[Scope of utility model registration request] 1. A paper supply unit that stores paper of a predetermined shape and supplies the paper to the print unit, a print unit that prints one side of the paper supplied from the paper supply unit, and a print unit in the print unit. For the state where the printed paper is supplied and this paper is stored in the paper supply section,
A sheet reversing unit that reverses the front and back of the sheet, and a conveying unit that conveys the sheet reversed by the sheet reversing unit to the printing unit, and the sheet reversed by the sheet reversing unit has the other surface of the printing unit. A double-sided printer characterized by being printed with.