Plate heater, fixer and image forming device

A heater and plate-shaped technology, applied in the direction of electric heating device, heating element shape, electric heating plate heating arrangement, etc., to achieve the effect of preventing cracks and cracks, excellent weather resistance, and suppressing fluctuations and changes

Inactive Publication Date: 2005-05-11
HARISON TOSHIBA LIGHTING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cutting edge (or the edge of the groove for cutting) along the laser incident surface side of the substrate has burr-like protrusions formed by ceramic fine powder residues splashed after melting and evaporation, or micro cracks. etc., that is, the edge of the cut substrate is in a concave-convex state

Method used

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  • Plate heater, fixer and image forming device
  • Plate heater, fixer and image forming device
  • Plate heater, fixer and image forming device

Examples

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Embodiment Construction

[0074] Hereinafter, embodiments of the plate heater according to the present invention will be described with reference to the drawings. figure 1 It is the front view of the plate heater H1 after cutting out the middle part, figure 2 for figure 1 Rear view of the plate heater H1, image 3 for along figure 1 The enlarged vertical cross-sectional view of the part cut along the line a-a in the arrow (Note: The thickness and width of each layer of the resistance heating element, the terminal part for power feeding, the wiring conductor and the covering layer shown in each figure are relative to the substrate. Exaggerated, but the size is not enlarged in proportion. In addition, the front side surface and the back side surface of the substrate are defined in the description of the drawings, and sometimes they are reversed in practice.)

[0075] 1 in the figure is a large-scale substrate with a length of about 300nm, a width of about 6.1mm, and a thickness of about 0.7mm, which ...

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PUM

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Abstract

PROBLEM TO BE SOLVED: To provide a plate heater in which temperature rising property can be improved by reducing heat capacity of a substrate to the resistance heating element by regulating the width of the long substrate and the forming width of the resistance heating element formed on this substrate, and in which occurrence of crack of the substrate can be suppressed, and to provide a fixing device using this plate heater, and an image forming apparatus installed with this fixing device. SOLUTION: The plate heater H1 which comprises a long substrate 1 made of a material having thermal resistance and electric insulation, a resistance heating element 2 which is formed in belt shape with a width 70% or more of the width of the substrate along the longitudinal direction on the surface of the substrate 1 and contains glass, inorganic oxide and / or inorganic nitride in Ag-Pd alloy, and power supply terminal parts 3, 3 formed connected to this resistance heating element 2, and the fixing device 7 using the plate heater H1 and the image forming apparatus 9 installed with the fixing device 7 are provided. COPYRIGHT: (C)2005,JPO&NCIPI

Description

technical field [0001] The present invention relates to a plate-shaped heater used as a heating source in OA equipment, household appliances, precision manufacturing equipment, and experimental research equipment, etc., and a toner fixing device for OA equipment such as copiers and facsimile machines equipped with the plate-shaped heater. And an image forming apparatus equipped with the fixing device. Background technique [0002] For example, in an electronic copier, the toner image formed on the surface of the photosensitive drum is transferred to a copy paper and a copy film as a heated body, and then the copy paper is pressed between a plate heater and a pressure roller. , while passing the copy paper therebetween, the copy paper is heated by the heat of the plate heater to fuse the toner and fix it. [0003] In this conventional plate heater, the Al 2 o 3 (Aluminum Oxide), AlN (Aluminum Nitride) or SiC (Silicon Carbide) and other heat-resistant and electrically insul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/20H05B3/10H05B3/12H05B3/14H05B3/20H05B3/26H05B3/46H05B3/68
CPCG03G15/2025G03G15/2039G03G15/2053G03G15/2064H05B3/0066
Inventor 苅部几惠江崎史郎苅部孝明
Owner HARISON TOSHIBA LIGHTING CORP
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