US4571065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scale factor changing mechanism for copying machine
Assignee: Fujifilm Business Innovation Corp
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Filing: 1983-12-01
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Granted: 1986-02-18
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Expires: 2003-12-01
Abstract
Abstract A copying machine with an optical system in which three mirrors are arranged between the surface of an original and a lens and one mirror is arranged between the lens and a photosensitive member. A scale factor changing mechanism utilizes one movable mirror arranged between the lens and photosensitive member and in parallel with the direction of the optical axis of the lens. An endless-belt-shaped member is employed as the photosensitive member. The endless-belt-shaped member has a flat exposure projection surface.
Inventors
- 👤 Keiryo Yasuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:00
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/04; G03G15/041
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
95 words
A copying machine comprising: a platen having a surface supporting an original to be copied; a lens for focusing an image of said original on to a photosensitive member; a series of mirrors for reflecting said image on to said lens, said mirrors at fixed positions in relation to said lens and to one another, one movable mirror arranged between said lens and said photosensitive member, said lens movable in parallel with the direction of the optical axis of said lens, and said photosensitive member comprising a flat belt employed as an exposure projection surface.
Claim 2
Dependent Claim
95 words
A copying machine comprising: a platen having a surface supporting an original to be copied; a lens for focusing an image of said original on to a photosensitive member; a series of mirrors for reflecting said image on to said lens, said mirrors at fixed positions in relation to said lens and to one another, one movable mirror arranged between said lens and said photosensitive member, said lens movable in parallel with the direction of the optical axis of said lens, and said photosensitive member comprising a flat belt employed as an exposure projection surface.
Claim 3
Dependent Claim
53 words
The copying machine of claim 1 wherein said flat belt comprises an endless movable belt disposed on a series of rollers, said exposure surface maintained in a constant angular relationship to said image reflected from said movable mirror irrespective of mirror displacement in a direction parallel to the optical axis of said lens.
Claim 4
Dependent Claim
52 words
The copying machine of claim 1 wherein said mirror is maintained in a constant angular relationship to the optical axis of said lens and wherein said belt has a width w and said movable mirror varies the scale factor by moving to project said image within the elective width of said belt.
Claim 5
Dependent Claim
27 words
The copying machine of claim 1 wherein said series of mirrors comprise three mirrors movable for scanning said original and directing the scanned image onto said lens.
Claim 6
Dependent Claim
32 words
The copying machine of claim 1 wherein said belt is a movable endless belt supported by three rollers, two of said rollers defining supporting said belt to define said exposure projection surface.
References Cited (Backward Citations)
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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) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |