Method for reducing influence of power supply voltage fluctuation of thermal printing head on printing quality
A technology of thermal print head and power supply voltage, applied in printing and other directions, can solve the problems of unstable print head voltage, unstable power supply voltage, affecting printing quality, etc., and achieve the effect of reducing impact, stabilizing printing energy, and simple steps
Active Publication Date: 2020-04-21
JIANGMEN DASCOM COMP PERIPHERAL +1
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Problems solved by technology
Generally speaking, the higher the temperature, the darker the printed color, so the accuracy of the temperature control of the print head determines the quality of the print. According to research, the heat energy of the print head is quadratic with the voltage applied to the print head Quantitative relationship, the energy required by the print head depends on the image printed by the user. If the color of the image changes drastically, the energy required by the print head will also change sharply. This situation will cause the power supply voltage to be unstable. The voltage of the print head is also unstable, which will affect the print quality
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[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0027] It should be noted that, if there is no conflict, various features in the embodiments of the present invention may be combined with each other, and all of them are within the protection scope of the present invention. In addition, although functional modules are divided in the schematic diagram of the system, and the logical order is shown in the flow chart, in some cases, the division of modules in the system or the sequence shown in the flow chart can be performed differently. or the steps described.
[0028] The embodiments of the present invention will be further described below in conj...
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The invention discloses a method for reducing the influence of the power supply voltage fluctuation of a thermal printing head on printing quality. The method comprises the following steps that: the power supply voltage of the thermal printing head is detected, a change parameter between the power supply voltage of the thermal printing head at a previous moment and the power supply voltage of thethermal printing head at a next moment is obtained; and compensation power supply time is additionally provided for the thermal printing head at the last moment according to the change parameter. Compared with the prior art, the method has the advantages of reasonable design and simple and convenient steps; the variation of the power supply voltage of the thermal printing head is detected, so thatthe power supply time parameter of the thermal printing head can be adjusted and controlled; printing energy change caused by the voltage variation of the thermal printing head can be compensated; and the influence of the power supply voltage fluctuation of the thermal printing head on the printing quality is reduced.
Description
technical field [0001] The invention relates to the field of printer driving, in particular to a method for reducing the influence of power supply voltage fluctuations on thermal printing heads on printing quality. Background technique [0002] The working principle of the thermal printer is to rely on powering the semiconductor heating element (that is, the thermal print head) to make its temperature rise sharply. chemical reaction, so as to display a specific image on the paper; if it is in contact with a carbon ribbon or a ribbon, it will transfer their dyes to other media (such as paper, cards, etc.), so that it can also be printed on the paper A specific image is displayed on the media. Generally speaking, the higher the temperature, the darker the printed color, so the accuracy of the temperature control of the print head determines the quality of the print. According to research, the heat energy of the print head is quadratic with the voltage applied to the print hea...
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IPC IPC(8): B41J2/35B41J2/355
CPCB41J2/35B41J2/3558
Inventor 田俊杰黄永生冯绍钧
Owner JIANGMEN DASCOM COMP PERIPHERAL