Patent US5842514A successfully refreshed from Google Patents.
Patent US4339195A successfully refreshed from Google Patents.
US4339195A
Expired / Lapsed
US
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Electrophotocopier roller assembly
Assignee: Pitney Bowes Inc
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Filing: 1980-11-17
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Granted: 1982-07-13
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Expires: 2000-11-17
Abstract
Abstract An improvement in an electrophotocopying machine having a photosensitive member. The improvement includes at least two rollers for charging the photosensitive member or at least two rollers for transferring a toned image from the photosensitive member to a plain copy sheet. The rollers are mounted on a turret adjacent the photosensitive member. The improvement also includes a mechanism for rotating one of the rollers into its operating position adjacent the photosensitive member and the other of the rollers into a cleaning position removed from the photosensitive member, and a cleaning device for cleaning the other roller in its cleaning position.
Inventors
- 👤 George N. Gabelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:19
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/1665; G03G15/167; G03G15/168; G03G15/02; G03G15/0208; G03G15/0216; G03G15/0225
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
73 words
In an electrophotocopying machine having a photosensitive member, the improvement comprising at least two rollers operatively associated with said photosensitive member, said rollers being mounted on a turret adjacent the photosensitive member, means for rotating one of said rollers into its operating position adjacent said photosensitive member and the other of said rollers into a cleaning position removed from said photosensitive member, and means for cleaning said other roller in its cleaning position.
Claim 2
Dependent Claim
73 words
In an electrophotocopying machine having a photosensitive member, the improvement comprising at least two rollers operatively associated with said photosensitive member, said rollers being mounted on a turret adjacent the photosensitive member, means for rotating one of said rollers into its operating position adjacent said photosensitive member and the other of said rollers into a cleaning position removed from said photosensitive member, and means for cleaning said other roller in its cleaning position.
Claim 3
Dependent Claim
14 words
The improvement of claim 1, wherein the cleaning means comprises a biased wire brush.
Claim 4
Dependent Claim
13 words
The improvement of claim 2, wherein the photosensitive member comprises a reusable photoconductor.
Claim 5
Dependent Claim
17 words
The improvement of claim 3, additionally comprising a vacuum device operatively associated with said biased wire brush.
Claim 6
Dependent Claim
12 words
The improvement of claim 4, wherein said rotating means comprises a solenoid.
Claim 7
Dependent Claim
16 words
The improvement of claim 1, wherein said rollers comprise charging rollers for charging said photosensitive member.
Claim 8
Dependent Claim
25 words
The improvement of claim 1, wherein said rollers comprise transfer rollers for transfering a toned image from the photosensitive member to a plain copy sheet.
References Cited (Backward Citations)
US4028551A
Cited
US4056723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |