US4786939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image forming apparatus
Assignee: Konica Minolta Inc
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Filing: 1986-08-18
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Granted: 1988-11-22
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Expires: 2006-08-18
Abstract
Abstract An image forming apparatus wherein an image exposure device and a whole surface exposure device are arranged to face the photosensitive member having a surface insulating layer and a color separating function in its face, and one of the image exposure device and the whole surface exposure device is operative to expose the photosensitive member to light which does contain a visible light.
Inventors
- 👤 Satoshi Haneda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:00
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/12; G03G13/00; G03G13/01
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
70 words
An image forming apparatus comprising: a photosensitive member having a surface insulating layer and a color separating function on a surface thereof and an image exposure means and a whole surface exposure means arranged to face said photosensitive member, wherein at least one of said image exposure means and said whole surface exposure means is operative to expose said photosensitive member to light which does substantially contain a visible light.
Claim 2
Dependent Claim
70 words
An image forming apparatus comprising: a photosensitive member having a surface insulating layer and a color separating function on a surface thereof and an image exposure means and a whole surface exposure means arranged to face said photosensitive member, wherein at least one of said image exposure means and said whole surface exposure means is operative to expose said photosensitive member to light which does substantially contain a visible light.
Claim 3
Dependent Claim
20 words
The image forming apparatus according to claim 1, wherein said light from the exposure means does not contain infrared rays.
Claim 4
Dependent Claim
20 words
The image forming apparatus according to claim 1, wherein said light from the exposure means does not contain ultraviolet rays.
Claim 5
Dependent Claim
23 words
The image forming apparatus according to claim 1, wherein said photosensitive member has a photoconductive layer substantially spectrally sensitive to a visible light.
Claim 6
Dependent Claim
19 words
The image forming apparatus according to claim 1, wherein said photosensitive member is substantially spectrally insensitive to infrared rays.
Claim 7
Dependent Claim
19 words
The image forming apparatus according to claim 1, wherein said photosensitive member is substantially spectrally insensitive to ultraviolet rays.
References Cited (Backward Citations)
US2297691A
Cited
JPH115958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-22 | 1992-05-23 | 1992-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-22 | 1996-05-23 | 1996-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-22 | 2000-05-23 | 2000-11-22 | $7700.00 | Window Closed / Lapsed |