A thermal ticket printer to prevent local overheating

A local overheating and printer technology, applied in printing and other directions, can solve the problems of reducing the speed of ticket issuance, overheating, and the inability of heating elements to dissipate heat in time, so as to avoid printing interruptions.

Active Publication Date: 2016-02-17
浙江网新电气技术有限公司
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  • Abstract
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Problems solved by technology

[0011] For the problem of local overheating, although the heat output based on the heating record can be relatively accurately controlled for each printing, with the increase of the printing volume, the commonly used heating elements will inevitably fail to dissipate heat in time due to the accumulation of heat. tendency to overheat
In order to ensure the printing quality and prevent the damage of the heating element, the printing has to be interrupted for a certain period of time at this time, which reduces the speed of issuing tickets accordingly, and with long-term use, the common heating element still has a high risk of damage

Method used

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  • A thermal ticket printer to prevent local overheating
  • A thermal ticket printer to prevent local overheating
  • A thermal ticket printer to prevent local overheating

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Embodiment Construction

[0045] In order to enable those skilled in the art to better understand the technical solution of the present invention, and to make the above-mentioned purpose, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings .

[0046] The process of thermal ticket printing is to use the print head with row-arranged heating elements to heat specific points on the ticket substrate made of thermal paper according to the bitmap of the ticket template until the color develops. Since the print head is composed of a row of heating elements arranged one by one, a row of dots can be printed in one printing cycle. The paper-feeding mechanism driven by the stepping motor is responsible for moving the ticket substrate, so as to cooperate with the printing head to complete the printing of the ticket face line by line. The printing of the ticket ...

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Abstract

The invention provides a heat-sensitive ticket printer preventing local overheating. According to the ticket printer, a forward paper feeding direction and a reverse paper feeding direction are provided, and the positions of common heating elements in a printing head are judged according to heating records; next, under the condition of possible local overheating, the bitmap of a ticket to be printed currently is analyzed so as to determine the time sequence distribution of print points when the ticket is printed in the forward paper feeding direction and the reverse paper feeding direction; and then, the heating time intervals of the common heating elements in the forward paper feeding direction and the reverse paper feeding direction are respectively determined through matching operation, the paper feeding direction in which the heating time interval can be delayed is selected from the two paper feeding directions, and a corresponding time sequence scheme is selected.

Description

technical field [0001] The present invention relates to printing equipment, and more particularly, to a heat-sensitive ticket printer that prevents local overheating. Background technique [0002] The principle of thermal printing is to heat the thermal printing paper to make it color under the premise that the heating temperature and heating position are controllable. Wherein, the heat-sensitive printing paper includes a base layer and a heat-sensitive chromogenic layer. The base layer basically belongs to ordinary paper, and a heat-sensitive chromogenic layer is coated on the base layer. There is a color developer and a leuco dye in the heat-sensitive color-forming layer. At room temperature, the chemical reaction between the color developer and the leuco dye is extremely slow, and it may take years to turn the thermal printing paper black; however, When heated above a certain temperature (generally between 70°C and 200°C), the reaction speed between the color developer a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/315
Inventor 沈新锋陈根土赵和平
Owner 浙江网新电气技术有限公司
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