Locking-key interlock control type compact printer

Abstract

The invention relates to a locking key integrated control type mini-printer, which effectively solves the problems in the prior key-press type door opening mechanism such as strenuous opening and high mal-operation liability causing malfunction. The mini-printer comprises a panel, a casing, a printing unit assembled inside the casing, a bracket, and a paper door opening device; and is characterized in that a key cap of the paper door opening device protrudes out of the panel, the locking shafts of the key cap are assembled together via a locking shaft guide sleeve fixed on the inner side of the panel, and by matching a position-limiting table and a sliding chute positioned on the locking shaft guide shaft with a claw on the key cap respectively, the position limitation or movement of the ends of the locking shafts along the axial direction thereof is controlled, so as to directly or indirectly control the rotation of a swing link of the paper door opening device. The inventive mini-printer has the advantages of compact transmission structure, stable integrated control action, flexible door opening, tight door closing, and reliable interlocking; and completely eliminates key-press mal-operation and ensures the safe handling and normal operation of the printer. The loose or detachment of the transmission members can be avoided by randomly changing the casing position, so as to remarkably improve the service performance and service life of the printer.

Description

technical field [0001] The present invention relates to a kind of micro-printer suitable for various instruments and instruments of paper-tape data printing, in particular to a key-locking and control-type micro-printer which fundamentally eliminates the misoperation of keys, stabilizes the joint control action, and ensures the normal operation of the printer. printer. Background technique [0002] At present, various instruments and micro-printers of instruments and their printing units, ribbons, control circuit boards, and paper rolls for paper-tape data printing on the market have been standardized and generalized. The present inventor has been aiming at some defects existing in the existing micro-printers, and constantly improves them, and successively designs some brand-new micro-printers suitable for various places, such as "capacity-expanding micro-printers" with inclined supports (patent Notification No. CN2555156Y), an "expandable micro-printer" with an elastic con...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a key-lock and joint-control micro-printer, which effectively solves the problems of the existing key-type opening mechanism, such as laborious opening of the paper bin door, easy misoperation and malfunctions, etc. Stable, flexible and light door opening, tight closing, reliable interlocking, fundamentally eliminate misoperation of keys, ensure safe transportation and normal operation of the printer, and significantly improve the performance and service life of the printer

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