Journal printer with paper tension detection mechanism

Abstract

The invention discloses a journal printer with a paper tension detection mechanism, which comprises a print member, a support, a delivery roller, a delivery motor, a transmission mechanism, a feed roller, a paper positioning shaft, a baffle plate and a control circuit, wherein the delivery roller is rotatably supported on the support, and is connected with the delivery motor through the transmission mechanism; a control end of the delivery motor and a control end of the print member are connected with the control circuit; the journal printer also comprises the paper tension detection mechanism arranged at the position of the print member; the paper tension detection mechanism consists of a photoelectric sensor, a paper measuring shaft, a hinge support shaft, a transmission plate, a tension spring and a tension spring fixing shaft; the transmission plate is hinged with the hinge support shaft; one end of the transmission plate is connected with the paper measuring shaft, while the other end is connected with the tension spring; the other end of the tension spring is connected with the tension spring fixing shaft which is fixed on the support; the photoelectric sensor is arranged at the position of the transmission plate; and a sensing signal input end of the control circuit is connected with the photoelectric sensor. The journal printer effectively prevents a phenomenon that printer paper pulls the print member in the process of recycling paper.

Description

technical field [0001] The invention relates to a log printer with a paper force detection mechanism, which is used in bank financial self-service equipment, railway self-service ticketing equipment, etc., and belongs to the field of printers. Background technique [0002] At present, domestic printers are widely used log printers. The printing components are generally heat-sensitive, and the recyclable paper rolls are relatively small, resulting in less recorded information, frequent replacement of paper rolls, and relatively high maintenance costs. Other printers that can recycle large paper rolls also have the following problems: a. During the process of increasing the receiving paper roll, the linear speed of the receiving paper roll is not synchronized with the paper feeding speed of the printing parts, resulting in deformation of the printed characters; b. During the process of increasing the roll, the paper roll does not move. At the same time, the structures of thes...

AI Technical Summary

Problems solved by technology

[0002] At present, domestic printers are widely used log printers. The printing components are generally heat-sensitive, and the recyclable paper rolls are relatively small, resulting in less recorded information, frequent replacement of paper rolls, and relatively high maintenance costs.

Other printers that can recycle large paper rolls also have the following problems: a. During the process of increasing the receiving paper roll, the linear speed of the receiving paper roll is not synchronized with the paper feeding speed of the printing parts, resulting in deformation of the printed characters; b. During the process of increasing the roll, the paper roll does not move

At the same time, the structure of these printers is relatively complicated, and the cost is relatively high.

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