Printing device and printing method

Abstract

The invention discloses a printing device. The device comprises hollow metal roller, a heating lamp tube, a conveying mechanism and an idle gear, wherein the lamp tube is arranged inside the hollow metal roller, and the conveying mechanism is used for guiding a printing medium into a position between a printing mechanism and a supporting base plate; and two sides of the idle gear abut against the conveying mechanism and the hollow metal roller through rotating of the roller, so that the conveying mechanism guides the printing medium into the position between the printing mechanism and the supporting base plate, and is driven at the same speed to rotate with the hollow metal roller in linkage. The invention also provides a printing method. In the method, the hollow metal roller and the heating lamp tube are used, no radiation energy loss exists, the back of the paper is heated directly, no image pollution is caused, simultaneously the drying time of ink is reduced, the printing speed is improved, and the problem that paper buckling occurs due to the fact that the paper absorbs ink and gets wet is solved.

Description

technical field [0001] The invention relates to a printer, in particular to a printing device and method which are applied to the printer and are heated by rollers. Background technique [0002] When the user prints a thick pattern and chooses double-sided printing, because the ink is not completely dry after printing, there will be two problems: the image will be polluted by the contact roller; the paper will change its characteristics due to ink absorption, and it is easy to Creates curls. [0003] like figure 1 As shown in , a conventional printing device 100 includes a heating lamp 110 , a heating plate 120 , a printing mechanism 130 , a conveying mechanism 140 and a printing medium 150 . Wherein, the heating lamp 110 may be a halogen lamp. The heating plate 120 can be a metal plate with good thermal conductivity. The heating plate 120 is disposed above the heating lamp tube 110 for transferring the heat generated by the heating lamp tube 110 to the printing medium 1...

AI Technical Summary

Problems solved by technology

[0002] When the user prints a thick pattern and chooses double-sided printing, because the ink is not completely dry after printing, there will be two problems: the image will be polluted by the contact roller; the paper will change its characteristics due to ink absorption, and it is easy to produce curl

However, the existing printing device 100 uses flat plate heating to dry the ink, and the radiation loss is very large, and it is impossible for the printing medium 150 to absorb uniform heat.

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