US5155539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet separating mechanism
Assignee: Pentax Corp
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Filing: 1991-06-07
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Granted: 1992-10-13
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Expires: 2011-06-07
Abstract
Abstract In a sheet separating mechanism, adapted to be positioned in an imaging device, for forming an image through an electrophotographic system, using a fan-folded sheet on which a visible image having been formed on a predetermined photoconductive member is to be transferred by means of a charger member arranged to be retractable from an operating position at which the transferring operation is to be executed onto the fan-folded sheet being fed in a predetermined direction, for separating the fan-folded sheet from the predetermined photoconductive member when the charger member is retracted from the operating position; the sheet separating mechanism comprising a pressing member arranged to be contacted with an image-forming surface of the fan-folded sheet for pressing the fan-folded sheet. Thus, the fan-folded sheet is forced to be separated from the predetermined photoconductive member when the charger member is retracted from the operating position.
Inventors
- 👤 Hiroyuki Yamaguchi
- 👤 Yoshio Monma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:34
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6517; G03G15/6526; G03G15/14; G03G15/16; G03G15/163; G03G15/1635; G03G15/164; G03G2215/00; G03G2215/00362; G03G2215/00367; G03G2215/00409; G03G2215/00443; G03G2215/00451; G03G2215/00455; G03G2215/00459; G03G2215/00535; G03G2215/00544
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
183 words
A sheet separating mechanism, adapted to be positioned in an imaging device, for forming an image through an electrophotographic system, using a fan-folded sheet on which a visible image formed on a photoconductive member is to be transferred by means of a charger member, arranged to be retractable from an operating position in which the transferring operation is to be executed onto the fan-folded sheet being fed in a predetermined direction, for separating said fan-folded sheet from said photoconductive member when said charger member is retracted from said operating position; said sheet separating mechanism comprising a pressing member arranged to be contacted with an imaging forming surface of said fan-folded sheet for pressing said fan-folded sheet, said pressing member comprising an arm member, including a plate part that is in contact with said fan-folded sheet, arranged to be rocked by means of an elastic member, and a stopping mechanism for stopping said rocking arm member at a predetermined position, whereby said fan-folded sheet is forced to be separated from said predetermined photoconductive member when said charger member is retracted from said operating position.
Claim 2
Dependent Claim
183 words
A sheet separating mechanism, adapted to be positioned in an imaging device, for forming an image through an electrophotographic system, using a fan-folded sheet on which a visible image formed on a photoconductive member is to be transferred by means of a charger member, arranged to be retractable from an operating position in which the transferring operation is to be executed onto the fan-folded sheet being fed in a predetermined direction, for separating said fan-folded sheet from said photoconductive member when said charger member is retracted from said operating position; said sheet separating mechanism comprising a pressing member arranged to be contacted with an imaging forming surface of said fan-folded sheet for pressing said fan-folded sheet, said pressing member comprising an arm member, including a plate part that is in contact with said fan-folded sheet, arranged to be rocked by means of an elastic member, and a stopping mechanism for stopping said rocking arm member at a predetermined position, whereby said fan-folded sheet is forced to be separated from said predetermined photoconductive member when said charger member is retracted from said operating position.
Claim 3
Dependent Claim
20 words
The sheet separating mechanism according to claim 1, wherein said elastic member comprises a spring mounted on said plate part.
Claim 4
Dependent Claim
53 words
The sheet separating mechanism according to claim 1, wherein said stopping mechanism comprises a stopper part successively formed to said plate part and a contact part provided within said imaging device, said contact part being arranged to be contacted with said stopper part when said arm member is rocked by a predetermined amount.
Claim 5
Dependent Claim
160 words
A sheet separating mechanism, adapted to be positioned in an imaging device for forming an image through an electrophotographic system, using a fan-folded sheet on which a visible image formed on an photoconductive member is to be transferred by means of a charger member, arranged to be retractable from an operating position at which the transferring operation is to be executed onto the fan-folded sheet being fed in a predetermined direction, for separating said fan-folded sheet from said predetermined photoconductive member when said charger member is retracted from said operating position; said sheet separating mechanism comprising a pressing member arranged to be contacted with an image forming surface of said fan-folded sheet for pressing said fan-folded sheet, whereby said fan-folded sheet is forced to be separated from said photoconductive member when said charger member is retracted from said operating position, said pressing member comprising an elastic sheet arranged to be contacted with said image forming surface of said fan-folded sheet.
Claim 6
Dependent Claim
160 words
A sheet separating mechanism, adapted to be positioned in an imaging device for forming an image through an electrophotographic system, using a fan-folded sheet on which a visible image formed on an photoconductive member is to be transferred by means of a charger member, arranged to be retractable from an operating position at which the transferring operation is to be executed onto the fan-folded sheet being fed in a predetermined direction, for separating said fan-folded sheet from said predetermined photoconductive member when said charger member is retracted from said operating position; said sheet separating mechanism comprising a pressing member arranged to be contacted with an image forming surface of said fan-folded sheet for pressing said fan-folded sheet, whereby said fan-folded sheet is forced to be separated from said photoconductive member when said charger member is retracted from said operating position, said pressing member comprising an elastic sheet arranged to be contacted with said image forming surface of said fan-folded sheet.
Claim 7
Dependent Claim
72 words
The sheet separating mechanism according to claim 4, further comprising a second pressing member arranged to be integrally movable with said charger member for pressing said fan-folded sheet from the opposite surface of said image-forming surface when said charger is located at said operating position, and wherein said pressing member is located substantially at a position on said fan-folded sheet at which said second pressing member is contacted with said fan-folded sheet.
Claim 8
Dependent Claim
159 words
A sheet separating mechanism, adapted to be positioned in an imaging device, for forming an image through an electrophotographic system, using a fan-folded sheet on which a visible image formed on a photoconductive member is to be transferred by means of a charger member, arranged to be retractable from an operating position at which the transferring operation is to be executed onto the fan-folded sheet being fed in a predetermined direction, for separating said fan-folded sheet from said photoconductive member when said charger member is retracted from said operating position; said sheet separating mechanism comprising a pressing member arranged to be contacted with an image-forming surface of said fan-folded sheet for pressing said fan-folded sheet, said pressing member comprising a plate member arranged to be rocked and an elastic sheet member adhered to said plate member, whereby said fan-folded sheet is forced to be separated from said photoconductive member when said charger member is retracted from said operating position.
Claim 9
Dependent Claim
159 words
A sheet separating mechanism, adapted to be positioned in an imaging device, for forming an image through an electrophotographic system, using a fan-folded sheet on which a visible image formed on a photoconductive member is to be transferred by means of a charger member, arranged to be retractable from an operating position at which the transferring operation is to be executed onto the fan-folded sheet being fed in a predetermined direction, for separating said fan-folded sheet from said photoconductive member when said charger member is retracted from said operating position; said sheet separating mechanism comprising a pressing member arranged to be contacted with an image-forming surface of said fan-folded sheet for pressing said fan-folded sheet, said pressing member comprising a plate member arranged to be rocked and an elastic sheet member adhered to said plate member, whereby said fan-folded sheet is forced to be separated from said photoconductive member when said charger member is retracted from said operating position.
Claim 10
Dependent Claim
171 words
A sheet separating mechanism, adapted to be positioned in an imaging device that includes a photoconductive member, a charger member, and a fan-folded sheet upon which an image is to be formed, comprising; a first pressing member arranged to be contacted with an image-forming surface of said fan-folded sheet for pressing said fan-folded sheet; a second pressing member arranged to be integrally movable with said charger member for pressing said fan-folded sheet from the opposite surface of said image-forming surface when said charger is located at an image transferring operating position, at which an image formed on said photoconductive member is transferred to said fan-folded sheet; said first pressing member comprising an arm member, including a plate part that is in contact with said fan-folded sheet, arranged to be rocked by means of an elastic member, said elastic member comprising a spring mounted on said plate part; and whereby said fan-folded sheet is forced to be separated from said photoconductive member when said charger member is retracted from said operating position.
Claim 11
Dependent Claim
171 words
A sheet separating mechanism, adapted to be positioned in an imaging device that includes a photoconductive member, a charger member, and a fan-folded sheet upon which an image is to be formed, comprising; a first pressing member arranged to be contacted with an image-forming surface of said fan-folded sheet for pressing said fan-folded sheet; a second pressing member arranged to be integrally movable with said charger member for pressing said fan-folded sheet from the opposite surface of said image-forming surface when said charger is located at an image transferring operating position, at which an image formed on said photoconductive member is transferred to said fan-folded sheet; said first pressing member comprising an arm member, including a plate part that is in contact with said fan-folded sheet, arranged to be rocked by means of an elastic member, said elastic member comprising a spring mounted on said plate part; and whereby said fan-folded sheet is forced to be separated from said photoconductive member when said charger member is retracted from said operating position.
Claim 12
Dependent Claim
20 words
The sheet separating mechanism according to claim 7, wherein said elastic member comprises a spring mounted on said plate part.
Claim 13
Dependent Claim
53 words
The sheet separating mechanism according to claim 7, wherein said stopping mechanism comprises a stopper part successively formed to said plate part and a contact part provided within said imaging device, said contact part being arranged to be contacted with said stopper part when said arm member is rocked by a predetermined amount.
Claim 14
Dependent Claim
34 words
The sheet separating mechanism according to claim 7, wherein said pressing member is located substantially at a position on said fan-folded sheet at which said second pressing member is contacted with said fan-folded sheet.
Claim 15
Dependent Claim
152 words
A sheet separating mechanism adapted to be positioned in an imaging device that includes a photoconductive member, a charger member and a fan-folded sheet upon which an image is to be formed, comprising; a first pressing member arranged to be contacted with an image forming surface of said fan-folded sheet for pressing said fan-folded sheet; and a second pressing member arranged to be integrally movable with said charger member for pressing said fan-folded sheet from the opposite surface of said image forming surface when said charger is located at an image transferring operating position, at which an image formed on said photoconductive member is transferred to said fan-folded sheet; said pressing member comprising an elastic sheet arranged to be contacted with said image forming surface of said fan-folded sheet; whereby said fan-folded sheet is forced to be separated from said photoconductive member when a charger member is retracted from said operating position.
Claim 16
Dependent Claim
152 words
A sheet separating mechanism adapted to be positioned in an imaging device that includes a photoconductive member, a charger member and a fan-folded sheet upon which an image is to be formed, comprising; a first pressing member arranged to be contacted with an image forming surface of said fan-folded sheet for pressing said fan-folded sheet; and a second pressing member arranged to be integrally movable with said charger member for pressing said fan-folded sheet from the opposite surface of said image forming surface when said charger is located at an image transferring operating position, at which an image formed on said photoconductive member is transferred to said fan-folded sheet; said pressing member comprising an elastic sheet arranged to be contacted with said image forming surface of said fan-folded sheet; whereby said fan-folded sheet is forced to be separated from said photoconductive member when a charger member is retracted from said operating position.
Claim 17
Dependent Claim
150 words
A sheet separating mechanism, adapted to be positioned in an imaging device that includes an photoconductive member, a charger member and a fan-folded sheet upon which an image is to be formed, comprising: a first pressing member arranged to be contacted with an image-forming surface of said fan-folded sheet for pressing said fan-folded sheet; a second pressing member arranged to be integrally movable with said charger member for pressing said fan-folded sheet from the opposite surface of said image-forming surface when said charger is located at an image transferring operating position at which an image formed on said photoconductive member is transferred to said fan-folded sheet; said pressing member comprising a plate member arranged to be rocked and an elastic sheet member adhered to said plate member; whereby said fan-folded sheet is forced to be separated from said photoconductive member when said charger member is retracted from said operating position.
Claim 18
Dependent Claim
150 words
A sheet separating mechanism, adapted to be positioned in an imaging device that includes an photoconductive member, a charger member and a fan-folded sheet upon which an image is to be formed, comprising: a first pressing member arranged to be contacted with an image-forming surface of said fan-folded sheet for pressing said fan-folded sheet; a second pressing member arranged to be integrally movable with said charger member for pressing said fan-folded sheet from the opposite surface of said image-forming surface when said charger is located at an image transferring operating position at which an image formed on said photoconductive member is transferred to said fan-folded sheet; said pressing member comprising a plate member arranged to be rocked and an elastic sheet member adhered to said plate member; whereby said fan-folded sheet is forced to be separated from said photoconductive member when said charger member is retracted from said operating position.
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) | 1995-10-13 | 1996-04-13 | 1996-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-13 | 2000-04-13 | 2000-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-13 | 2004-04-13 | 2004-10-13 | $7700.00 | Window Closed / Lapsed |