A micro-printer movement

Abstract

The invention discloses a miniature printer core. The miniature printer core comprises an injection-molded rack, wherein a curved surface groove used for allowing paper to pass is formed at the rear end of the rack, a colored tape support frame used for mounting a colored tape device is formed at the front end of the rack, an injection-molded upper paper guiding plate, an injection-molded printing plate and a paper feeding roller are connected to the curved surface groove, curved surfaces matched with the curved surface groove are formed at the lower ends of the upper paper guiding plate and the printing plate, the lower ends of the upper paper guiding plate and the printing plate are fitted with each other after the upper paper guiding plate and the printing plate are assembled, and a paper feeding channel is formed among the upper paper guiding plate, the printing plate and the curved surface groove. The invention provides a miniature printer which is simple in structure, simple and easy to assemble and convenient to maintain, and due to the arrangement of the fully-sealed paper feeding channel, reduces paper clamping phenomena and is convenient to clear paper.

Description

technical field [0001] The invention relates to a micro-printer core. Background technique [0002] Micro printers are widely used in various industries, such as instrumentation, supermarkets, convenience stores, postal services, banks, tobacco monopoly, utility meter reading, mobile police systems, mobile government systems, etc. Existing micro-printer cores are generally assembled with sheet metal parts, and the paper passage is formed between the lower paper guide plate, the upper paper guide plate, the printing plate, and the paper feeding roller, and the paper passage is installed on the frame. It is a sheet metal part, and the lower end is difficult to make a smooth arc surface. After assembly, there is a large gap between the upper paper guide plate and the printing plate, which may easily cause folding, twisting, or even jamming of the printing paper, which will affect the user's use. In addition, the paper passing assembly consisting of the upper paper guide plate,...

AI Technical Summary

Problems solved by technology

Existing micro-printer cores are generally assembled with sheet metal parts, and the paper passage is formed between the lower paper guide plate, the upper paper guide plate, the printing plate, and the paper feeding roller, and the paper passage is installed on the frame. It is a sheet metal part, and the lower end is difficult to make a smooth arc surface. After assembly, there is a large gap between the upper paper guide plate and the printing plate, which may easily cause folding, twisting, or even paper jamming of the printing paper, which will affect the user's use.

In addition, the paper passing assembly consisting of the upper paper guide plate, printing plate, and paper feeding roller is usually fixed on the frame by screws, which is difficult to disassemble and even more difficult to assemble. Great inconvenience to users

Images