Gap adjusting device, ink-jet printer and modification method thereo

Abstract

The invention provides a gap adjusting device, an ink-jet printer and a modification method of the ink-jet printer. The gap adjusting device comprises a guide rod, a cam and a gear are arranged on the end portions of the guide rod, a first shaft hole is formed in the middle portion of the cam, the end portion of the guide rod penetrates through the first shaft hole, the gear is arranged outside the cam, a second shaft hole is formed in the middle portion of the gear, and the end portion of the guide rod penetrates through the second shaft hole. The maximum distance between the outer edge of the cam and the center of the first shaft hole is larger than the radius of the root circle of the gear. The ink-jet printer is provided with the gap adjusting device. According to the modification method of the ink-jet printer, the cam is replaced to be arranged in the ink-jet printer. Adjusting of an imaging gap is achieved, an adjustable range is enlarged, and imaging can be smoothly carried out on flexible recording media and rigid recording media large in thickness.

Description

technical field [0001] The invention relates to the field of printing and imaging, in particular to an adjusting device for the gap between an ink outlet of an inkjet printer and a recording medium, an inkjet printer equipped with the gap adjusting device and a refitting method for the inkjet printer. Background technique [0002] As a common office equipment, printers provide great convenience for modern office. Existing printers mainly include ink-jet printers. Ink-jet printers use ink cartridges containing ink to be installed on character carriages to form characters or patterns to be printed on recording media such as paper. [0003] refer to figure 1 , an existing inkjet printer 1 has a housing 11, with reference to image 3 , image 3 It is an exploded view of the inkjet printer after the casing 11 is disassembled. The body frame 31 and the paper feed frame 32 are installed in the casing 11. The paper feed frame 32 includes a paper feed shaft 321 on which multiple s...

AI Technical Summary

Problems solved by technology

[0010] However, the above-mentioned inkjet printers are all aimed at flexible recording media such as paper. When a rigid recording medium needs to be printed, due to the large thickness of the rigid recording medium, the ink outlet 316 and the rigid recording medium cannot be adjusted to the optimum position. The best imaging gap PG seriously affects the printing quality. At the same time, due to the large thickness of the rigid recording medium, it is impossible to enter the platen shaft 317 through the paper feeding shaft piece 322, so that imaging cannot be realized, which causes great inconvenience to users.

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