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Thermosensitive printing head heating voltage control circuit and printing device

A technology of thermal print head and heating voltage, which is applied in printing and other directions, can solve the problems of time-consuming printing, difficult balance, and low efficiency, and achieve the effect of avoiding the change of heating density and improving printing efficiency

Active Publication Date: 2019-06-07
XIAMEN HANIN ELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the problem that this brings is: 24V adapter power supply is converted to 15V heating voltage, the efficiency is low
Moreover, compared with the heating voltage of 17V, the heating voltage of 15V will take more printing time to achieve the same printing density.
Generally speaking, thermal printers with fixed heating voltage are difficult to balance the printing effect and printing efficiency when the power supply voltage range is wide.

Method used

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  • Thermosensitive printing head heating voltage control circuit and printing device
  • Thermosensitive printing head heating voltage control circuit and printing device
  • Thermosensitive printing head heating voltage control circuit and printing device

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present invention, all other implement...

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Abstract

The invention provides a thermosensitive printing head heating voltage control circuit. The thermosensitive printing head heating voltage control circuit comprises a voltage converter, a sampling feedback module, a control module and an adjusting module; the voltage converter is connected with the sampling feedback module which is connected with the adjusting module; the control module is furtherconnected with the sampling feedback module and the adjusting module; the voltage converter is used for converting a power source voltage coming from a power supply and outputting a heating voltage; the sampling feedback module is used for acquiring the heating voltage; and the control module is also used for controlling the heating voltage according to the power source voltage through the adjusting module.

Description

technical field [0001] The invention relates to the field of printers, in particular to a thermal printing head heating voltage control circuit and printing equipment. Background technique [0002] Usually, the heating voltage of a thermal printer is fixed at a certain voltage value. For example, for a thermal printer powered by a 24V adapter, its heating voltage is fixed at 17V through a voltage converter. In this case, if a five-cell lithium battery is used to power the printer, the input voltage may vary from 21V to 17.5V as the battery discharges. When the supply voltage is close to 17.5V, it is difficult for the voltage converter to stabilize the heating voltage at 17V because the voltage difference is too small. Therefore, if the heating voltage is still set at a fixed 17V, it is inevitable that there will be changes in the heating density, which will make the printing effect worse. If the heating voltage is fixed at 15V in order to take into account the voltage cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/355
Inventor 不公告发明人
Owner XIAMEN HANIN ELECTRONICS TECH CO LTD
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