US4230406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning system for an electrostatic copier
Assignee: Xerox Corp
•
Filing: 1979-03-26
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Granted: 1980-10-28
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Expires: 1999-03-26
Abstract
Abstract An apparatus which cleans particles from a photoconductive member arranged to advance along a predetermined path. When the photoconductive member is stationary, the particle cleaner and photoconductive member are spaced from one another. The photoconductive member is deflected into engagement with the particle cleaner in response to the photoconductive member advancing along the pre-determined path. In this manner, the particle cleaner removes residual particles from the photoconductive member during the movement thereof along the pre-determined path.
Inventors
- 👤 Stanley D. Klett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:42
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/0005
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
139 words
An apparatus for cleaning residual particles from a photoconductive member arranged to advance along a pre-determined path after a particle image formed on the photoconductive member has been transferred to a copy sheet, including: means, normally spaced from the photoconductive member, for removing the residual particles from the photoconductive member, said removing means being inoperative when spaced from the photoconductive member and being operative when in contact therewith; and pneumatic means, operatively associated with the photoconductive member, for deflecting the photoconductive member from a position spaced from said removing means to a position in contact therewith in response to the photoconductive member moving along the predetermined path, said pneumatic means returning the photoconductive member from the position in contact with said removing means to a position spaced from said removing means in response to the photoconductive member being stationary.
Claim 2
Independent Claim
139 words
An apparatus for cleaning residual particles from a photoconductive member arranged to advance along a pre-determined path after a particle image formed on the photoconductive member has been transferred to a copy sheet, including: means, normally spaced from the photoconductive member, for removing the residual particles from the photoconductive member, said removing means being inoperative when spaced from the photoconductive member and being operative when in contact therewith; and pneumatic means, operatively associated with the photoconductive member, for deflecting the photoconductive member from a position spaced from said removing means to a position in contact therewith in response to the photoconductive member moving along the predetermined path, said pneumatic means returning the photoconductive member from the position in contact with said removing means to a position spaced from said removing means in response to the photoconductive member being stationary.
Claim 3
Dependent Claim
62 words
An apparatus as recited in claim 1, wherein said pneumatic means includes: a bellows having one surface thereof contacting the photoconductive member; and means for supplying a pressurized fluid to said bellows expanding said bellows to deflect the photoconductive member into contact with said removing means, said supplying means being actuated in response to the photoconductive member advancing along the predetermined path.
Claim 4
Independent Claim
18 words
An apparatus as recited in claims 1, or 2, wherein said removing means includes a rotatable, resilient roll.
Claim 5
Dependent Claim
18 words
An apparatus as recited in claim 3, wherein said resilient roll is preferably made from a urethane material.
Claim 6
Independent Claim
18 words
An apparatus as recited in claims 1, or 2, wherein said removing means includes a rotatable elongated brush.
Claim 7
Independent Claim
17 words
An apparatus as recited in claims 1, or 2, wherein the photoconductive member includes a flexible belt.
Claim 8
Dependent Claim
32 words
An apparatus as recited in claim 6, wherein said pneumatic means deflects said flexible belt in a direction substantially normal to the direction that said flexible belt advances along the pre-determined path.
Claim 9
Dependent Claim
143 words
An electrophotographic printing machine of the type having a photoconductive member arranged to advance along a pre-determined path wherein residual particles adhere to the photoconductive member after transferring a particle image therefrom to a copy sheet, wherein the improvement includes: means, normally spaced from the photoconductive member, for removing particles from the photoconductive member, said removing means being inoperative when spaced from the photoconductive member and being operative when in contact therewith; and pneumatic means, operatively associated with the photoconductive member, for deflecting the photoconductive member from a position spaced from said removing means to a position in contact therewith in response to the photoconductive member advancing along the pre-determined path, said pneumatic means returning the photoconductive member from the position in contact with said removing means to a position spaced from said removing means in response to the photoconductive member being stationary.
Claim 10
Dependent Claim
143 words
An electrophotographic printing machine of the type having a photoconductive member arranged to advance along a pre-determined path wherein residual particles adhere to the photoconductive member after transferring a particle image therefrom to a copy sheet, wherein the improvement includes: means, normally spaced from the photoconductive member, for removing particles from the photoconductive member, said removing means being inoperative when spaced from the photoconductive member and being operative when in contact therewith; and pneumatic means, operatively associated with the photoconductive member, for deflecting the photoconductive member from a position spaced from said removing means to a position in contact therewith in response to the photoconductive member advancing along the pre-determined path, said pneumatic means returning the photoconductive member from the position in contact with said removing means to a position spaced from said removing means in response to the photoconductive member being stationary.
Claim 11
Dependent Claim
63 words
A printing machine as recited in claim 8, wherein said pneumatic means includes: a bellows having one surface thereof contacting the photoconductive member; and means for supplying a pressurized fluid to said bellows expanding said bellows to deflect the photoconductive member into contact with said removing means, said supplying means being actuated in response to the photoconductive member advancing along the pre-determined path.
Claim 12
Dependent Claim
19 words
A printing machine as recited in claims 8, or 9, wherein said removing means includes a rotatable, resilient roll.
Claim 13
Dependent Claim
19 words
A printing machine as recited in claim 10, wherein said resilient roll is preferably made from a urethane material.
Claim 14
Dependent Claim
19 words
A printing machine as recited in claims 8, or 11, wherein said removing means includes a rotatable, elongated brush.
Claim 15
Dependent Claim
18 words
A printing machine as recited in claims 8, or 11, wherein the photoconductive member includes a flexible belt.
Claim 16
Dependent Claim
33 words
A printing machine as recited in claim 13, wherein said pneumatic means deflects said flexible belt in a direction substantially normal to the direction that said flexible belt advances along the predetermined path.
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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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |