Patent US5036360A successfully refreshed from Google Patents.
US5036360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture compensation for electrostatographic apparatus
Assignee: Eastman Kodak Co
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Filing: 1990-02-21
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Granted: 1991-07-30
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Expires: 2010-02-21
Abstract
Abstract An electrostatographic reproduction apparatus transfers a toner image from an image member to a receiver sheet by applying an electric field between the image member and the receiver sheet in a direction urging the toner image to the receiver sheet. A programmed power supply is adapted to (1) generate a pre-set constant current across the applied electric field during an adjustment period and (2) lock onto the voltage that supplies the set-point current for the reminder of a reproduction run. The value of the voltage is used to automatically adjust the value of an least one electrostatographic process element. The electrostatographic process element to be adjusted may be at least one of detack bias, detack duration, initial voltage V 0 , exposure E 0 , developement bias V B , copy sheet conditioning, and copy sheet drying.
Inventors
- 👤 James F. Paxon
- 👤 Duane J. Schommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:58
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/1695; G03G15/50; G03G15/5033; G03G15/5037; G03G15/65; G03G15/6532; G03G15/6535; G03G2215/00; G03G2215/00025; G03G2215/00029; G03G2215/00033; G03G2215/00037; G03G2215/00042
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
79 words
An electrostatographic reproduction apparatus comprising: an image member; means for transferring a toner image from said image member to a receiver sheet by applying a voltage between said image member and the receiver sheet in a direction urging the toner image to the receiver sheet and of a value characteristic of the ambient relative humidity in the apparatus; and means responsive to the value of said voltage for automatically adjusting the value of at least one electrostatographic process element.
Claim 2
Dependent Claim
79 words
An electrostatographic reproduction apparatus comprising: an image member; means for transferring a toner image from said image member to a receiver sheet by applying a voltage between said image member and the receiver sheet in a direction urging the toner image to the receiver sheet and of a value characteristic of the ambient relative humidity in the apparatus; and means responsive to the value of said voltage for automatically adjusting the value of at least one electrostatographic process element.
Claim 3
Dependent Claim
18 words
An electrostatographic reproduction apparatus as defined in claim 1 wherein said one electrostatographic process element is detack bias.
Claim 4
Dependent Claim
18 words
An electrostatographic reproduction apparatus as defined in claim 1 wherein said one electrostatographic process element is detack duration.
Claim 5
Dependent Claim
21 words
An electrostatographic reproduction apparatus as defined in claim 1 wherein said one electrostatographic process element is initial voltage V O .
Claim 6
Dependent Claim
20 words
An electrostatographic reproduction apparatus as defined in claim 1 wherein said one electrostatographic process element is exposure E O .
Claim 7
Dependent Claim
21 words
An electrostatographic reproduction apparatus as defined in claim 1 wherein said one electrostatographic process element is development bias V B .
Claim 8
Dependent Claim
19 words
An electrostatographic reproduction apparatus as defined in claim 1 wherein said one electrostatographic process element is copy sheet conditioning.
Claim 9
Dependent Claim
19 words
An electrostatographic reproduction apparatus as defined in claim 1 wherein said one electrostatographic process element is copy sheet drying.
Claim 10
Dependent Claim
110 words
An electrostatographic reproduction apparatus comprising: an image member; means for transferring a toner image from said image member to a receiver sheet by applying an electric field between said image member and the receiver sheet in a direction urging the toner image to the receiver sheet, said transferring means including a programmed power supply adapted to (1) generate a pre-set constant current across the applied electric field during an adjustment period and (2) lock onto the voltage that supplies the set-point current for the remainder of a reproduction run; and means responsive to the value of said voltage for automatically adjusting the value of at least one electrostatographic process element.
Claim 11
Dependent Claim
110 words
An electrostatographic reproduction apparatus comprising: an image member; means for transferring a toner image from said image member to a receiver sheet by applying an electric field between said image member and the receiver sheet in a direction urging the toner image to the receiver sheet, said transferring means including a programmed power supply adapted to (1) generate a pre-set constant current across the applied electric field during an adjustment period and (2) lock onto the voltage that supplies the set-point current for the remainder of a reproduction run; and means responsive to the value of said voltage for automatically adjusting the value of at least one electrostatographic process element.
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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) | 1994-07-29 | 1995-01-28 | 1995-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-29 | 1999-01-28 | 1999-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-29 | 2003-01-28 | 2003-07-30 | $7700.00 | Window Closed / Lapsed |