photo printer

Abstract

Provided is a photo printer including: a base adapted to accommodate paper therein; a pickup roller protruding from the bottom of the base to feed the paper accommodated in the base forwardly; a platen roller disposed in front of the base to discharge the paper fed by the pickup roller forwardly; a head located above the platen roller to apply given heat to the paper; a swing bracket having a mounting portion formed at the front side thereof in such a manner as to be coupled to the head and coupling portions formed at the rear side thereof in such a manner as to be rotatably coupled to the base to allow the head to swing; and pressurizing means adapted to pressurize the head downwardly to allow the head to come into close contact with the paper advancing into the space between the head andthe platen roller.

Description

technical field [0001] The present invention relates to a photo printer, in particular to a photo printer in which a pickup roller is directly rotated by the rotational force of a motor. Background technique [0002] Recently, a photo printer product capable of printing digital smart cameras instantly anytime, anywhere has been developed. [0003] There are various types of such photo printers, and in particular, there is a photo printer that uses printing paper in an inkless method without requiring additional ink or ink cartridges, which can save subsequent costs. Here, the inkless method refers to a method in which a part equivalent to an ink cartridge is included in paper and a color is expressed using heat. That is, since the ink that expresses color in response to heat is deposited on the paper, an image (photograph) or text is printed by controlling the heating temperature or heating time of the head. [0004] figure 1 Represents a conventional photo printer (1). ...

AI Technical Summary

Problems solved by technology

Due to the above effects, the heat of the head (12a) cannot be locally transmitted to the corresponding part of the paper, but the heat is transmitted to the adjacent part of the corresponding part (surface contact part, L) to realize the color, resulting in a decrease in printing quality (see image 3 of (b))

[0011] Also, the frictional force between the pickup roller and the paper is small, and it often happens that the paper cannot be fed smoothly.

[0012] In addition, there is a problem that one sheet of paper needs to be fed forward by the pickup roller, but two or more sheets are fed due to static electricity between the sheets, etc.

Images