US5638842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for removing a film-like image forming substance from a recording medium
Assignee: Ricoh Co Ltd
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Filing: 1995-05-03
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Granted: 1997-06-17
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Expires: 2015-05-03
Abstract
Abstract A device for removing a film-like image forming substance from a recording medium for thereby regenerating the medium. A supply section supplies to the medium a water-containing removal accelerating liquid which causes a swelling layer of the medium to swell more than the substance provided on the medium. A separating section presses, after the liquid has been supplied to the medium, a separating member against the medium with or without heating to thereby transfer the substance from the medium to the separating member and thereby regenerates the medium. A cleaning section removes impurities deposited on the separating member.
Inventors
- 👤 Toshiaki Tokita
- 👤 Akiko Konishi
- 👤 Yasuo Miyoshi
- 👤 Kakuji Murakami
- 👤 Kiyoshi Tanikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:15
CPC Classifications
G; G03; G03G; G03G21/00; B; B08; B08B; B08B3/00; B08B3/04; B41; B41J; B41J3/00; B41J3/407; B41M; B41M7/00; G03G8/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
120 words
A device for removing a film-like image forming substance from a recording medium, comprising: supplying means for supplying to the medium a water-containing removal accelerating liquid which causes a swelling layer of said medium to swell more than the substance provided on said medium; separating means for pressing, after said liquid has been supplied to the medium, a separating member against said medium with or without heating to thereby transfer the substance from said medium to said separating member and thereby regenerate said medium; cleaning means for removing impurities deposited on said separating member; and setting means for causing a surface temperature of said separating member to be lower at the time of cleaning than at the time of separation.
Claim 2
Independent Claim
120 words
A device for removing a film-like image forming substance from a recording medium, comprising: supplying means for supplying to the medium a water-containing removal accelerating liquid which causes a swelling layer of said medium to swell more than the substance provided on said medium; separating means for pressing, after said liquid has been supplied to the medium, a separating member against said medium with or without heating to thereby transfer the substance from said medium to said separating member and thereby regenerate said medium; cleaning means for removing impurities deposited on said separating member; and setting means for causing a surface temperature of said separating member to be lower at the time of cleaning than at the time of separation.
Claim 3
Dependent Claim
33 words
A device as claimed in claim 1, wherein said setting means comprises cooling means positioned between said separating means and said cleaning means, and for lowering the surface temperature of said separating member.
Claim 4
Dependent Claim
34 words
A device as claimed in claim 2, wherein said cooling means comprises fluid ejecting means for ejecting a fluid of temperature lower than the surface temperature of said separating member against said separating member.
Claim 5
Dependent Claim
44 words
A device as claimed in claim 2, further comprising sensing means for sensing the surface temperature of said separating member at the time of cleaning, wherein said cooling means is activated when said sensing means senses a surface temperature higher than a predetermined value.
Claim 6
Dependent Claim
33 words
A device as claimed in claim 1, wherein said cleaning means comprises fluid ejecting means for ejecting a gas or a liquid under pressure against said separating member to thereby remove the impurities.
Claim 7
Dependent Claim
22 words
A device as claimed in claim 1, wherein said cleaning means removes the impurities by exerting a shearing force on said impurities.
Claim 8
Dependent Claim
18 words
A device as claimed in claim 6, wherein said cleaning means is movable relative to said separating means.
Claim 9
Dependent Claim
36 words
A device as claimed in claim 7, wherein said cleaning means comprises a roller-like brush member having an elongate base longer than a width of the medium, and bristles implanted in a periphery of said base.
Claim 10
Dependent Claim
21 words
A device as claimed in claim 8, wherein said bristles are implanted in said base in a spiral or mesh configuration.
Claim 11
Dependent Claim
27 words
A device as claimed in claim 1 further comprising preventing means for preventing the impurities removed from said separating member from depositing on said separating member again.
Claim 12
Dependent Claim
19 words
A device as claimed in claim 10, wherein said preventing means sucks the impurities removed from said separating member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-06-16 | 2000-12-16 | 2001-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-06-16 | 2004-12-16 | 2005-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-06-16 | 2008-12-16 | 2009-06-17 | $7700.00 | Window Closed / Lapsed |