Patent EP0604977A2 successfully refreshed from Google Patents.
EP0604977A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fixing heater and fixing apparatus with trimmed resistive member
Assignee: Canon Inc
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Filing: 1993-12-28
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Granted: —
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Expires: 2013-12-28
Abstract
Abstract A fixing heater includes a dielectric substrate; a resistor formed on said substrate and trimmed in the current flow direction.
Inventors
- 👤 Toshio C/O Canon Kabushiki Kaisha Yoshimoto
- 👤 Takashi C/O Canon Kabushiki Kaisha Soya
- 👤 Takashi C/O Canon Kabushiki Kaisha Nakahara
- 👤 Yasumasa C/O Canon Kabushiki Kaisha Nashida
- 👤 Yasuhiro C/O Canon Kabushiki Kaisha Nakata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 06:23
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2064; G03G15/2053; G03G2215/00; G03G2215/20; G03G2215/2003; G03G2215/2016; G03G2215/2035
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
20 words
A fixing heater comprising: a dielectric substrate; a resistor formed on said substrate and trimmed in the current flow direction.
Claim 2
Dependent Claim
19 words
A fixing heating according to Claim 1, wherein said heater further comprises a protection layer for covering said resistor.
Claim 3
Dependent Claim
32 words
A fixing heater according to Claim 1, wherein said resistor is formed so as to extend in the longitudinal direction of said substrate and is supplied with power through the opposite ends.
Claim 4
Dependent Claim
15 words
A fixing heater according to Claim 1, wherein said substrate is made of ceramic material.
Claim 5
Dependent Claim
59 words
A fixing apparatus comprising: a heater comprising a dielectric substrate and a resistor formed on said substrate and trimmed in the current flow direction; a film slidable on said heater; a backup member which cooperates with said heater to form a nip, with said film being interposed; wherein the trimmed portion of said resistor is positioned outside said nip.
Claim 6
Dependent Claim
27 words
A fixing heater according to Claim 5, wherein said heater further comprises a protection layer for covering said resistor and said film slides on said protection layer.
Claim 7
Dependent Claim
34 words
A fixing heater according to Claim 5, wherein said resistor is formed to extend in the direction perpendicular to the moving direction of said film and is supplied with power through the opposite ends.
Claim 8
Dependent Claim
15 words
A fixing heater according to Claim 5, wherein said substrate is made of ceramic material.
Claim 9
Dependent Claim
43 words
A fixing heater according to Claim 5, wherein said resistor is formed on said substrate, on the surface facing said nip and its trimmed portion is located on the downstream side of said nip with respect to the moving direction of said film.
Claim 10
Dependent Claim
53 words
A fixing heater according to Claim 5, wherein said apparatus further comprises: a temperature detecting element for detecting the temperature of said substrate, and a power supply controlling means for controlling the power supply to said resistor so that the temperature detected by said temperature detecting member remains at a predetermined fixing temperature.
References Cited (Backward Citations)
No citation records indexed.
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