US4577960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document registration apparatus
Assignee: Xerox Corp
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Filing: 1984-08-22
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Granted: 1986-03-25
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Expires: 2004-08-22
Abstract
Abstract A platen cover used in a document reproduction machine is provided with a mechanism for selectively engaging and disengaging a movable registration guide from the platen surface. The movable registration guide cooperates with a fixed guide to provide a corner registered edge for positioning of one size document. For larger documents, the movable guide is engaged by the platen cover and pivoted therewith to permit the larger document to be placed on the platen in a new position which maintains optical system center line.
Inventors
- 👤 Robert G. Zambelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:07
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/6221; G03B27/6228
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
91 words
In an electrophotographic document reproduction apparatus which includes a transparent document support platen and an optical projection system for projecting light images of said document from said platen to said photosensitive member, a document registration apparatus comprising: at least one movable document registration guide associated with said platen, and a pivotable platen cover assembly including mechanical engagement means for selectively engaging at least one of said registration guides whereby upon engagement, a pivoting movement of said cover conveys said registration guide into and out of optical alignment with the projection means.
Claim 2
Dependent Claim
91 words
In an electrophotographic document reproduction apparatus which includes a transparent document support platen and an optical projection system for projecting light images of said document from said platen to said photosensitive member, a document registration apparatus comprising: at least one movable document registration guide associated with said platen, and a pivotable platen cover assembly including mechanical engagement means for selectively engaging at least one of said registration guides whereby upon engagement, a pivoting movement of said cover conveys said registration guide into and out of optical alignment with the projection means.
Claim 3
Dependent Claim
56 words
The improved apparatus of claim 1 wherein said engagement means includes a pair of support arms mounted within said platen cover, said arms having end projections adapted to selectively engage said registration guide whereby, when the platen cover is raised, said guide is lifted from said platen and acquires the same motion as the platen cover.
Claim 4
Dependent Claim
17 words
The improved apparatus of claim 2 further including means for securing the engaged position of said guide.
Claim 5
Dependent Claim
41 words
The improved apparatus of claim 1 wherein said registration guide has information formed on the surface in contact with the platen; said information projected with the light images of said document to form a composite latent image at the photosensitive surface.
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) | 1989-03-24 | 1989-09-23 | 1990-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-24 | 1993-09-23 | 1994-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-24 | 1997-09-23 | 1998-03-25 | $7700.00 | Window Closed / Lapsed |