Patent US5343280A successfully refreshed from Google Patents.
US5343280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image fixing apparatus
Assignee: Canon Inc
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Filing: 1993-10-12
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Granted: 1994-08-30
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Expires: 2013-10-12
Abstract
Abstract An image forming apparatus contains an accommodator for accommodating a recording material together with an image forming device for forming an image on that recording material supplied from the accommodator. A fixing apparatus receives the imaged recording material and includes a heat generating resistor layer, a protection layer covering the heat generating resistor layer and a sheet movable with the recording material in sliding contact with the protection layer, wherein the image is heated by heater through the sheet. A position detector detects the position of the recording material and the power supply to the heat generating resistor layer is started in accordance with the output of the position detector.
Inventors
- 👤 Hiromitsu Hirabayashi
- 👤 Kensaku Kusaka
- 👤 Atsushi Arai
- 👤 Yoshiaki Takayanagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:10
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2017; G03G15/2021; G03G15/2064; G03G2215/00; G03G2215/20; G03G2215/2003; G03G2215/2009; G03G2215/2016; G03G2215/2035; G03G2215/2038
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
124 words
An image forming apparatus comprising: an accommodator for accommodating a recording material; means for forming a visualized image on the recording material supplied from said accommodator; fixing means for heating and fixing the visualized image, said fixing means including each of (i) a heat generating resistor layer, (ii) a protection layer covering said heat generating resistor layer, and (iii) a sheet movable with the recording material in sliding contact with said protection layer, wherein the visualized image is heated by heat from said heat generating resistor layer through said sheet; a position detector for detecting a position of the recording material; and power supply means for starting power supply to said heat generating resistor layer in accordance with an output of said position detector.
Claim 2
Dependent Claim
124 words
An image forming apparatus comprising: an accommodator for accommodating a recording material; means for forming a visualized image on the recording material supplied from said accommodator; fixing means for heating and fixing the visualized image, said fixing means including each of (i) a heat generating resistor layer, (ii) a protection layer covering said heat generating resistor layer, and (iii) a sheet movable with the recording material in sliding contact with said protection layer, wherein the visualized image is heated by heat from said heat generating resistor layer through said sheet; a position detector for detecting a position of the recording material; and power supply means for starting power supply to said heat generating resistor layer in accordance with an output of said position detector.
Claim 3
Dependent Claim
29 words
An apparatus according to claim 1, wherein said position detector detects that a leading edge of the recording material reaches a position between said accommodator and said fixing means.
References Cited (Backward Citations)
US3578797A
Cited
US3811828A
Cited
US3667742A
Cited
JPS4894438A
Cited
US3948215A
Cited
US3810735A
Cited
US4161644A
Cited
US4566779A
Cited
US4780742A
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) | 1997-08-29 | 1998-02-28 | 1998-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-29 | 2002-02-28 | 2002-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-29 | 2006-02-28 | 2006-08-30 | $7700.00 | Window Closed / Lapsed |