US5398052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image forming apparatus using overlapping light beams
Assignee: Canon Inc
•
Filing: 1991-11-05
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Granted: 1995-03-14
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Expires: 2011-11-05
Abstract
Abstract An image recording apparatus for recording an image by application of light beam to a photosensitive member includes a photosensitive member; a light source for emitting first and second beams, one of the first and second beams bearing image information; and a scanner for scanning the photosensitive member with the first and second beams with a time interval so that they are overlapped on the photosensitive material.
Inventors
- 👤 Kazuo Isaka
- 👤 Masato Katayama
- 👤 Akihiro Mouri
- 👤 Tetsuro Fukui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:17
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/40025; H04N1/40037; H04N1/04; H04N1/19; H04N1/191; H04N1/192
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
82 words
An image recording apparatus for recording an image by application of light beams to a photosensitive member, comprising: a photosensitive member; light source means for emitting first and second means, both of the first and second beams bearing image information, wherein one of the first and second beams is defocused on said photosensitive member; and scanning means for scanning said photosensitive member with the first and second beams with a time interval therebetween so that they are overlapped on said photosensitive member.
Claim 2
Dependent Claim
82 words
An image recording apparatus for recording an image by application of light beams to a photosensitive member, comprising: a photosensitive member; light source means for emitting first and second means, both of the first and second beams bearing image information, wherein one of the first and second beams is defocused on said photosensitive member; and scanning means for scanning said photosensitive member with the first and second beams with a time interval therebetween so that they are overlapped on said photosensitive member.
Claim 3
Dependent Claim
84 words
An image recording apparatus for recording an image by application of light beams to a photosensitive member, comprising: a photosensitive member; light source means for emitting first and second light beams, wherein one of the first and second light beams bears image information and the other beam does not and is defocused on said photosensitive member; and scanning means for scanning said photosensitive member with the first and second beams with a time interval therebetween so that they are overlapped on said photosensitive member.
Claim 4
Dependent Claim
84 words
An image recording apparatus for recording an image by application of light beams to a photosensitive member, comprising: a photosensitive member; light source means for emitting first and second light beams, wherein one of the first and second light beams bears image information and the other beam does not and is defocused on said photosensitive member; and scanning means for scanning said photosensitive member with the first and second beams with a time interval therebetween so that they are overlapped on said photosensitive member.
Claim 5
Dependent Claim
15 words
An apparatus according to claim 2, wherein the first and second beams have different wavelengths.
Claim 6
Dependent Claim
17 words
An apparatus according to claim 2, wherein the first and second beams are different in light intensity.
Claim 7
Dependent Claim
17 words
An apparatus according to claim 2, wherein said photosensitive member is a dry silver salt photosensitive member.
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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) | 1998-03-13 | 1998-09-12 | 1999-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-13 | 2002-09-12 | 2003-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-13 | 2006-09-12 | 2007-03-14 | $7700.00 | Window Closed / Lapsed |