US4937105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-fixing method
Assignee: Brother Industries Ltd
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Filing: 1989-01-11
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Granted: 1990-06-26
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Expires: 2009-01-11
Abstract
Abstract In a heat-fixing method, a sheet is prepared whose one side is coated with a release-agent layer. The sheet is superimposed upon at least a recording side of a recording medium having carried thereon an unfixed image such that the coated release-agent layer is faced to the recording side. Alternatively, the sheet is folded double into two sections such that release-agent layer sections on the respective two sections of the folded sheet are faced each other, and then the recording medium is sandwiched between the two sections of the folded sheet. The recording medium as well as the sheet is heated. Subsequently, the sheet is peeled off the recording medium.
Inventors
- 👤 Jun Sakai
- 👤 Mitsuru Ohta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:14
CPC Classifications
G; G03; G03G; G03G8/00; G03G11/00; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2017; G03G15/2025; G03G15/2064; G03G2215/00; G03G2215/00362; G03G2215/00443; G03G2215/00493; G03G2215/00502
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
73 words
A heat-fixing method comprising the steps of: providing a recording medium having an unfixed image upon a recording side thereof; superimposing a sheet whose one side is coated with a release-agent layer upon at least said recording side of said recording medium such that the coated release-agent layer is faced to the recording side; heating the recording medium through the sheet by heating means; and, subsequently, peeling the sheet off the recording medium.
Claim 2
Dependent Claim
73 words
A heat-fixing method comprising the steps of: providing a recording medium having an unfixed image upon a recording side thereof; superimposing a sheet whose one side is coated with a release-agent layer upon at least said recording side of said recording medium such that the coated release-agent layer is faced to the recording side; heating the recording medium through the sheet by heating means; and, subsequently, peeling the sheet off the recording medium.
Claim 3
Dependent Claim
15 words
The heat-fixing method according to claim 1, wherein said heating means comprises a heat roller.
Claim 4
Dependent Claim
15 words
The heat-fixing method according to claim 1, wherein said sheet is a polyethylene terephthalate sheet.
Claim 5
Dependent Claim
14 words
The heat-fixing method according to claim 1, wherein said sheet is a polyethylene sheet.
Claim 6
Dependent Claim
14 words
The heat-fixing method according to claim 1, wherein said sheet is a polypropylene sheet.
Claim 7
Dependent Claim
15 words
The heat-fixing method according to claim 1, wherein said sheet is a polyvinyl chloride sheet.
Claim 8
Dependent Claim
15 words
The heat-fixing method according to claim 1, wherein said sheet is a polyvinylidene chloride sheet.
Claim 9
Dependent Claim
14 words
The heat-fixing method according to claim 1, wherein said sheet is a polyimide sheet.
Claim 10
Dependent Claim
14 words
The heat-fixing method according to claim 1, wherein said sheet is a paper sheet.
Claim 11
Dependent Claim
15 words
The heat-fixing method according to claim 1, wherein said release-agent layer is formed of silicone.
Claim 12
Dependent Claim
16 words
The heat-fixing method according to claim 1, wherein said release-agent layer is formed of fluoric resin.
Claim 13
Dependent Claim
16 words
The heat-fixing method according to claim 1, wherein said release-agent layer is formed of paraffinic wax.
Claim 14
Dependent Claim
21 words
The heat-fixing method according to claim 1, wherein said release-agent layer is formed of a mixture of silicone and acrylic resin.
Claim 15
Dependent Claim
79 words
A heat-fixing method comprising the steps of: providing a sheet having one side coated with a release-agent; folding the sheet double into two sections such that said coated release-agent layer on the respective two sections of the folded sheet face each other; sandwiching a recording medium carrying thereon an unfixed image between the two sections of the folded sheet; heating the recording medium through the folded sheet by heating means; and, subsequently, peeling the sheet off the recording medium.
Claim 16
Dependent Claim
79 words
A heat-fixing method comprising the steps of: providing a sheet having one side coated with a release-agent; folding the sheet double into two sections such that said coated release-agent layer on the respective two sections of the folded sheet face each other; sandwiching a recording medium carrying thereon an unfixed image between the two sections of the folded sheet; heating the recording medium through the folded sheet by heating means; and, subsequently, peeling the sheet off the recording medium.
Claim 17
Dependent Claim
15 words
The heat-fixing method according to claim 14, wherein said heating means comprises a heat roller.
Claim 18
Dependent Claim
15 words
The heat-fixing method according to claim 14, wherein said sheet is a polyethylene terephthalate sheet.
Claim 19
Dependent Claim
14 words
The heat-fixing method according to claim 14, wherein said sheet is a polyethylene sheet.
Claim 20
Dependent Claim
14 words
The heat-fixing method according to claim 14, wherein said sheet is a polypropylene sheet.
Claim 21
Dependent Claim
15 words
The heat-fixing method according to claim 14, wherein said sheet is a polyvinyl chloride sheet.
Claim 22
Dependent Claim
15 words
The heat-fixing method according to claim 14, wherein said sheet is a polyvinylidene chloride sheet.
Claim 23
Dependent Claim
14 words
The heat-fixing method according to claim 14, wherein said sheet is a polyimide sheet.
Claim 24
Dependent Claim
14 words
The heat-fixing method according to claim 14, wherein said sheet is a paper sheet.
Claim 25
Dependent Claim
15 words
The heat-fixing method according to claim 14, wherein said release-agent layer is formed of silicone.
Claim 26
Dependent Claim
16 words
The heat-fixing method according to claim 14, wherein said release-agent layer is formed of fluoric resin.
Claim 27
Dependent Claim
16 words
The heat-fixing method according to claim 14, wherein said release-agent layer is formed of paraffinic wax.
Claim 28
Dependent Claim
21 words
The heat-fixing method according to claim 14, wherein said release-agent layer is formed of a mixture of silicone and acrylic resin.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-06-25 | 1993-12-25 | 1994-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-25 | 1997-12-25 | 1998-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-25 | 2001-12-25 | 2002-06-26 | $7700.00 | Window Closed / Lapsed |