Patent US5155529A successfully refreshed from Google Patents.
US5155529A
Expired / Lapsed
US
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Detection of transfer and fusing problems in electrostatographic machines
Assignee: Individual
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Filing: 1992-03-12
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Granted: 1992-10-13
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Expires: 2012-03-12
Abstract
Abstract The need for adjustment of the transfer and fusing subsystems of an electrostatographic machine is determined by adjusting the machine's process control parameters until density reading of an untransferred toner image of a test patch are within specification, or are otherwise acceptable. The toner image is transferred and fused to an image receiver sheet, and deficiencies in the images on the receiver sheet indicate the need for adjustment of the transfer and/or fusing subsystems.
Inventors
- 👤 Allen J. Rushing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:06
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/50; G03G15/5062; G03G15/5033; G03G15/5041; G03G2215/00; G03G2215/00025; G03G2215/00029; G03G2215/00033; G03G2215/00037; G03G2215/00042
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
125 words
A process for detecting transfer and fusing subsystem problems in electrostatographic machines having an image member, said process comprising: creating a toner image on the image member; determining the quality of the toner image while the toner image is on the imaging member; setting up the machine by adjusting process control parameters to improve the quality of toner images on the image member and to obtain a high quality toner image on the image member; transferring the high quality toner image from the image member to a receiver sheet; fixing the transferred toner image to the receiver sheet; and inspecting the fixed image for quality, whereby deficiencies in the images on the receiver sheet indicate the need for adjustment of the transfer and/or fusing subsystems.
Claim 2
Dependent Claim
125 words
A process for detecting transfer and fusing subsystem problems in electrostatographic machines having an image member, said process comprising: creating a toner image on the image member; determining the quality of the toner image while the toner image is on the imaging member; setting up the machine by adjusting process control parameters to improve the quality of toner images on the image member and to obtain a high quality toner image on the image member; transferring the high quality toner image from the image member to a receiver sheet; fixing the transferred toner image to the receiver sheet; and inspecting the fixed image for quality, whereby deficiencies in the images on the receiver sheet indicate the need for adjustment of the transfer and/or fusing subsystems.
Claim 3
Dependent Claim
24 words
A process as defined in claim 1 wherein said inspecting step includes comparing the density of the fixed toner image to an aim value.
Claim 4
Dependent Claim
139 words
A process for detecting transfer and fusing subsystem problems in electrostatographic machines having an image member with image areas and non-image areas, said process comprising: creating a toner image on the image member; determining the quality of the toner image while the toner image is on the imaging member; setting up the machine by adjusting process control parameters to improve the quality of toner images in an image area of the image member and to obtain a high quality toner image on the image area of the image member; transferring the high quality toner image from the image member to a receiver sheet; fixing the transferred toner image to the receiver sheet; and inspecting the fixed image for quality, whereby deficiencies in the images on the receiver sheet indicate the need for adjustment of the transfer and/or fusing subsystems.
Claim 5
Dependent Claim
139 words
A process for detecting transfer and fusing subsystem problems in electrostatographic machines having an image member with image areas and non-image areas, said process comprising: creating a toner image on the image member; determining the quality of the toner image while the toner image is on the imaging member; setting up the machine by adjusting process control parameters to improve the quality of toner images in an image area of the image member and to obtain a high quality toner image on the image area of the image member; transferring the high quality toner image from the image member to a receiver sheet; fixing the transferred toner image to the receiver sheet; and inspecting the fixed image for quality, whereby deficiencies in the images on the receiver sheet indicate the need for adjustment of the transfer and/or fusing subsystems.
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 |