US5619765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for removing a film-like image forming substance
Assignee: Ricoh Co Ltd
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Filing: 1995-09-06
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Granted: 1997-04-15
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Expires: 2015-09-06
Abstract
Abstract In a device for recycling a recording medium by removing a film-like image forming substance from the medium, a separating member contacts one side of the medium carrying the substance. The separating member is durable because its surface contacting the medium is provided with a measure against deterioration. Anticorrosion means reduces the deterioration rate of the separating member.
Inventors
- 👤 Toshiaki Tokita
- 👤 Akiko Konishi
- 👤 Yasuo Miyoshi
- 👤 Kakuji Murakami
- 👤 Toshiaki Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:23
CPC Classifications
B; B41; B41M; B41M7/00; B41M7/0009; B08; B08B; B08B3/00; B08B3/04; B08B3/08; G; G03; G03G; G03G21/00; G03G11/00
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
157 words
A device for removing a film-like image forming substance from a recording medium having a swelling layer, which swells with a water-containing image removal promoting liquid, at least in the vicinity of a surface where an image is to be formed, said device comprising: applying means for applying said image removal promoting liquid to the recording medium on which an image is formed by the image forming substance, to thereby cause the swelling layer to swell more than the image forming substance; separating means comprising a separating member for separating the image forming substance from the recording medium by being pressed against said recording medium to which said image removal promoting liquid has been applied; at least a surface of said separating member that contacts the recording medium being formed of a metallic material; and electric potential control means for maintaining an electric potential of said separating member lower than an anticorrosion potential of said metallic material.
Claim 2
Independent Claim
157 words
A device for removing a film-like image forming substance from a recording medium having a swelling layer, which swells with a water-containing image removal promoting liquid, at least in the vicinity of a surface where an image is to be formed, said device comprising: applying means for applying said image removal promoting liquid to the recording medium on which an image is formed by the image forming substance, to thereby cause the swelling layer to swell more than the image forming substance; separating means comprising a separating member for separating the image forming substance from the recording medium by being pressed against said recording medium to which said image removal promoting liquid has been applied; at least a surface of said separating member that contacts the recording medium being formed of a metallic material; and electric potential control means for maintaining an electric potential of said separating member lower than an anticorrosion potential of said metallic material.
Claim 3
Dependent Claim
25 words
A device as claimed in claim 1, wherein said separating means heats the recording medium when said separating member is pressed against said recording medium.
Claim 4
Dependent Claim
38 words
A device as claimed in claim 1, wherein said separating member exerts an adhesion between said separating member and the image forming substance and greater than an adhesion acting between said image forming substance and the recording medium.
Claim 5
Dependent Claim
42 words
A device as claimed in claim 1, wherein said metallic material comprises at least one metallic element selected from a group consisting of Fe, Co, Ni, Al, Cr, Au, Ag, Cu, and or an alloy containing said at least one metallic element.
Claim 6
Dependent Claim
21 words
A device as claimed in claim 4, wherein said metallic material forms a film on said surface of said separating member.
Claim 7
Dependent Claim
31 words
A device as claimed in claim 5, wherein said film comprises a film of Ag, Au formed by a procedure selected from a group consisting of plating, vacuum plating, and sputtering.
Claim 8
Dependent Claim
24 words
A device as claimed in claim 6, wherein said film is formed on said separating member as one of a belt and a roller.
Claim 9
Dependent Claim
33 words
A device as claimed in claim 4, wherein said metallic material comprises at least one alloy selected from a group consisting of stainless steel, Fe-Ni alloy, Co-Al alloy, Monel metal, Inconel, and duralumin.
Claim 10
Dependent Claim
14 words
A device as claimed in claim 4, wherein said metallic material comprises an oxide.
Claim 11
Dependent Claim
25 words
A device as claimed in claim 9, wherein said oxide is formed by a procedure selected from a group consisting of anodic oxidation and pyrolysis.
Claim 12
Dependent Claim
42 words
A device as claimed in claim 1, wherein said electric potential control means comprises a DC power source connected to said separating member at a negative electrode thereof, and an insoluble anode connected to a positive electrode of said DC power source.
Claim 13
Dependent Claim
24 words
A device as claimed in claim 11, wherein said insoluble anode is formed of one of high Si iron, black lead, and lead-silver alloy.
Claim 14
Independent Claim
169 words
A device for removing a film-like image forming substance from a recording medium having a swelling layer, which swells with a water-containing image removal promoting liquid, at least in the vicinity of a surface where an image is to be formed, said device comprising: applying means for applying said image removal promoting liquid to the recording medium on which an image is formed by the image forming substance, to thereby cause the swelling layer to swell more than the image forming substance; and separating means comprising a separating member for separating the image forming substance from the recording medium by being pressed against said recording medium to which said image removal promoting liquid has been applied; at least a surface of said separating member that contacts the recording medium being formed of a metallic material, wherein said metallic material comprises at least one metallic element selected from a group consisting of Fe, Co, Ni, Al, Cr, Au, Ag, Cu, and an alloy containing said at least one metallic element.
Claim 15
Independent Claim
169 words
A device for removing a film-like image forming substance from a recording medium having a swelling layer, which swells with a water-containing image removal promoting liquid, at least in the vicinity of a surface where an image is to be formed, said device comprising: applying means for applying said image removal promoting liquid to the recording medium on which an image is formed by the image forming substance, to thereby cause the swelling layer to swell more than the image forming substance; and separating means comprising a separating member for separating the image forming substance from the recording medium by being pressed against said recording medium to which said image removal promoting liquid has been applied; at least a surface of said separating member that contacts the recording medium being formed of a metallic material, wherein said metallic material comprises at least one metallic element selected from a group consisting of Fe, Co, Ni, Al, Cr, Au, Ag, Cu, and an alloy containing said at least one metallic element.
Claim 16
Dependent Claim
25 words
A device as claimed in claim 13, wherein said separating means heats the recording medium when said separating member is pressed against said recording medium.
Claim 17
Dependent Claim
27 words
A device as claimed in claim 13, wherein said separating member exerts an adhesion between said separating member and the image forming substance and the recording medium.
Claim 18
Dependent Claim
21 words
A device as claimed in claim 13, wherein said metallic material forms a film on said surface of said separating member.
Claim 19
Dependent Claim
31 words
A device as claimed in claim 16, wherein said film comprises a film of Ag, Au formed by a procedure selected from a group consisting of plating, vacuum plating, and sputtering.
Claim 20
Dependent Claim
24 words
A device as claimed in claim 17, wherein said film is formed on said separating member as one of a belt and a roller.
Claim 21
Dependent Claim
33 words
A device as claimed in claim 13, wherein said metallic material comprises at least one alloy selected from a group consisting of stainless steel, Fe-Ni alloy, Co-Al alloy, Monel metal, Inconel, and duralumin.
Claim 22
Dependent Claim
14 words
A device as claimed in claim 13, wherein said metallic material comprises an oxide.
Claim 23
Dependent Claim
25 words
A device as claimed in claim 20, wherein said oxide is formed by a procedure selected from a group consisting of anodic oxidation and pyrolysis.
Claim 24
Dependent Claim
31 words
A device as claimed in claim 13, further comprising electric potential control means for maintaining an electric potential of said separating member lower than an anticorrosion potential of said metallic material.
Claim 25
Dependent Claim
42 words
A device as claimed in claim 22, wherein said electric potential control means comprises a DC power source connected to said separating member at a negative electrode thereof, and an insoluble anode connected to a positive electrode of said DC power source.
Claim 26
Dependent Claim
24 words
A device as claimed in claim 23, wherein said insoluble anode is formed of one of high Si iron, black lead, and lead-silver alloy.
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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) | 2000-04-14 | 2000-10-14 | 2001-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-14 | 2004-10-14 | 2005-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-14 | 2008-10-14 | 2009-04-15 | $7700.00 | Window Closed / Lapsed |