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Ceramic heating piece for laser printer and manufacturing process thereof

A technology of ceramic heating sheet and laser printer, which is applied to the electric recording process using charge pattern, the equipment and heating element material of electric charge pattern, which can solve the problems of high cost printer and the inability to change the temperature, etc. , to achieve the effects of easy production, no surface treatment process, and good adhesion performance

Active Publication Date: 2009-12-09
BEIJING LASER HI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a ceramic heater for laser printers and its production process to solve the problem of high cost of the existing H / E, the internal temperature control value of the printer has been set fixed, and the temperature cannot be changed to adapt to different temperature melting point toner problem

Method used

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  • Ceramic heating piece for laser printer and manufacturing process thereof
  • Ceramic heating piece for laser printer and manufacturing process thereof
  • Ceramic heating piece for laser printer and manufacturing process thereof

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Embodiment Construction

[0021] see figure 1 and figure 2 , a ceramic heating sheet for laser printers in the present invention, a thin film heating wire 5 is sintered on a ceramic substrate 6, lead-out electrodes 2 are arranged at both ends of the thin film heating wire 5, and a dielectric covering layer is arranged outside the thin film heating wire 5 1, it is characterized in that: described ceramic substrate 6 is the Al2O3 substrate of 96% (remaining 4% is made of SiO 2 Or / and MgO as an additive, the function is to increase the roughness of its surface, to improve the adhesion firmness with the film heating wire 5 and the medium cover layer 1), and the cover layer 1 is a glass glaze film.

[0022] Widening lines 3 and narrowing lines 4 for changing temperature are provided on the film heating lines 5 . The working principle of the widening line 3 and narrowing line 4 is:

[0023] 1. First of all, when the thin film heating wire 5 used as a heating element is uniform in thickness and equal in w...

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Abstract

The invention relates to a ceramic heating piece for a laser printer and a manufacturing process thereof, wherein a ceramic substrate is sintered with a film heating wire, two ends of the film heating wire are provided with extraction electrodes, a medium covering layer is arranged outside the film heating wire, the ceramic substrate is made from aluminum oxide, and the covering layer is made from glass glaze. The manufacturing process comprises the following steps: printing a conductive sizing agent on the substrate, performing high temperature sintering for the first time, printing a noble metal sizing agent, performing the high temperature sintering for the second time, printing a glass glaze sizing agent, and performing the high temperature sintering for the third time. The ceramic heating piece has the advantages of having low price, providing a convenient and practical objective condition for the regeneration of a damaged laser printer, and being advantageous for the development and the popularization of environmental protection and regeneration.

Description

technical field [0001] The invention relates to a ceramic heating sheet for a laser printer and a production process thereof. Background technique [0002] The ceramic heating element (Heating Element, hereinafter referred to as H / E) for laser printers is a heating element heated by high-temperature sintering thin-film resistance on a high-frequency ceramic substrate. Its use in laser printers is an advanced fixing method that firmly and permanently adheres the toner adhered to the paper surface after being developed and melted at high temperature. Its advantages are fast heating, low power consumption, not only accurate temperature control, stable and reliable, but also long service life. The H / E used by many models of laser printers abroad is made of silicon nitride (or aluminum nitride), and the H / E made of this material is very expensive. In addition, since the temperature sensors in different types of printers have different fixed positions, they are placed at a certa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/20H05B3/20H05B3/10C04B35/10C04B41/90C03C8/10
CPCC03C3/072C03C3/0745
Inventor 石磊
Owner BEIJING LASER HI TECH CO LTD
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