US5118920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image fixing apparatus
Assignee: Canon Inc
•
Filing: 1990-12-05
•
Granted: 1992-06-02
•
Expires: 2010-12-05
Abstract
Abstract An image fixing apparatus includes a heater; a film movable together with a recording material in contact with the heater, wherein a visualized image on the recording material is heat-fixed by heat from the heater through the film; a driver for driving the film; wherein the driver stops the film after power supply to the heater is stopped.
Inventors
- 👤 Masatoshi Tanabe
- 👤 Shokyo Koh
- 👤 Yoshihiko Suzuki
- 👤 Satoshi Mori
- 👤 Koki Kuroda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:52
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2064
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
73 words
An image fixing apparatus, comprising a heater to which power is supplied; a film movable together with a recording material, wherein a visualized image on the recording material is heat-fixed by heat from said heater through said film at a fixing position; and driving means for driving said film, wherein after the recording material passes the fixing position, the power supply to said heater is stopped and thereafter said driving means is stopped.
Claim 2
Dependent Claim
73 words
An image fixing apparatus, comprising a heater to which power is supplied; a film movable together with a recording material, wherein a visualized image on the recording material is heat-fixed by heat from said heater through said film at a fixing position; and driving means for driving said film, wherein after the recording material passes the fixing position, the power supply to said heater is stopped and thereafter said driving means is stopped.
Claim 3
Dependent Claim
25 words
An apparatus according to claim 1, wherein said driving means stops said film a predetermined period after stoppage of the power supply to said heater.
Claim 4
Dependent Claim
45 words
An apparatus according to claim 1, further comprising a temperature sensor for sensing a temperature of said heater, wherein said driving means stops said film upon detection, by said temperature sensor, of the temperature of said heater which is not higher than a predetermined temperature.
Claim 5
Dependent Claim
44 words
An apparatus according to claim 3, further comprising speed detecting means for detecting a movement speed of said film, wherein the film movement speed after stoppage of the power supply to said heater is in accordance with a temperature detected by said temperature sensor.
Claim 6
Dependent Claim
20 words
An apparatus according to claim 1, wherein said heater is fixed in use, and said film slides on said heater.
Claim 7
Dependent Claim
18 words
An apparatus according to claim 5, wherein a lubricant agent is present between said heater and said film.
Claim 8
Dependent Claim
28 words
An apparatus according to claim 5, wherein said heater has a resistance layer generating heat upon electric power supply thereto, said resistance layer being close to said film.
Claim 9
Dependent Claim
39 words
An apparatus according to claim 1, further comprising detecting means for detecting passage of the recording material through the fixing portion, and the power supply to the heater is stopped in response to an output of the detecting means.
Claim 10
Dependent Claim
27 words
An apparatus according to claim 1, wherein a surface of said film is contactable to said heater, and the other surface is contactable to the visualized image.
Claim 11
Dependent Claim
13 words
An apparatus according to claim 1, wherein said film is of resin material.
References Cited (Backward Citations)
CA551152A
Cited
US3811828A
Cited
US3745307A
Cited
US3813677A
Cited
US3810735A
Cited
US3864709A
Cited
US4049947A
Cited
US4118178A
Cited
US4354095A
Cited
EP0295901A2
Cited
EP0331075A2
Cited
US5043763A
Cited
US4998121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-06-02 | 1995-12-02 | 1996-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-02 | 1999-12-02 | 2000-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-02 | 2003-12-02 | 2004-06-02 | $7700.00 | Window Closed / Lapsed |