US3955494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for preventing an image of a printing master from being printed in an inclined position
Assignee: Ricoh Co Ltd
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Filing: 1974-08-02
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Granted: 1976-05-11
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Expires: 1994-08-02
Abstract
Abstract A device for duplicating apparatus adapted to prevent an image of a printing master from being printed in an inclined position on copies produced from the printing master mounted in the apparatus. The device comprises, in combination, a pair of delivery rollers adapted to hold therebetween one copy sheet after another as the copy sheets are fed from a sheet feed tray and to deliver the same to the printing position, and means for causing each copy sheet to assume an inclined position immediately before being held between the pair of delivery rollers.
Inventors
- 👤 Minoru Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:48
CPC Classifications
B; B65; B65H; B65H9/00; B65H9/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
203 words
A device for preventing an image of a printing master from being printed in an inclined position with respect to the margins on rectangular copy sheets to which the image is transferred in a duplicating apparatus of the type comprising: means for cyclicly transporting the printing master through a printing position; means for feeding copy sheets one by one along a predetermined path of movement to said printing position in a direction substantially perpendicular to the leading edges of said copy sheets; and means cooperating with said transporting means at said printing position for transferring the image on said printing master to said copy sheets; said device comprising: means disposed across said predetermined path of movement for receiving said copy sheets from said feeding means and transporting said copy sheets to said printing position; said receiving means comprising a pair of cooperating feed rollers; and means for selectively varying the orientation of said feed rollers with respect to the leading edges of said copy sheets received thereby to alter the orientation and direction of movement of said copy sheets prior to entering said printing position by such an amount that will compensate for any inclination of the printing master at the printing position.
Claim 2
Independent Claim
203 words
A device for preventing an image of a printing master from being printed in an inclined position with respect to the margins on rectangular copy sheets to which the image is transferred in a duplicating apparatus of the type comprising: means for cyclicly transporting the printing master through a printing position; means for feeding copy sheets one by one along a predetermined path of movement to said printing position in a direction substantially perpendicular to the leading edges of said copy sheets; and means cooperating with said transporting means at said printing position for transferring the image on said printing master to said copy sheets; said device comprising: means disposed across said predetermined path of movement for receiving said copy sheets from said feeding means and transporting said copy sheets to said printing position; said receiving means comprising a pair of cooperating feed rollers; and means for selectively varying the orientation of said feed rollers with respect to the leading edges of said copy sheets received thereby to alter the orientation and direction of movement of said copy sheets prior to entering said printing position by such an amount that will compensate for any inclination of the printing master at the printing position.
Claim 3
Dependent Claim
35 words
A device as in claim 1 wherein said feed rollers comprise a pair of rollers respectively disposed above and below said predetermined path of movement and engaging each other for transporting said copy sheets therebetween.
Claim 4
Dependent Claim
44 words
A device as in claim 2 wherein said orientation varying means comprises means for supporting the ends of said pair of rollers such that the roller axes are at an angle with respect to the leading edges of said copy sheets upon receipt thereof.
Claim 5
Dependent Claim
22 words
A device as in claim 2 wherein one roller of said pair of rollers has a flat portion on its outer periphery.
Claim 6
Dependent Claim
24 words
A device as in claim 1 further comprising means for rotating said feed rollers and means for interrupting the rotation of said feed rollers.
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) | 1979-05-11 | 1979-11-10 | 1980-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-11 | 1983-11-10 | 1984-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-11 | 1987-11-10 | 1988-05-11 | $7700.00 | Window Closed / Lapsed |