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US3877804A
Expired / Lapsed
US
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Corner registration device for document feeder
Assignee: Xerox Corp
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Filing: 1973-11-02
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Granted: 1975-04-15
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Expires: 1993-11-02
Abstract
Abstract A corner registration device for a document feeder is provided for aligning the document prior to its advancement. The registration means includes a first registration barrier extending in a direction substantially parallel to the direction in which the document is to be fed. The first registration barrier contacts a first side of the document. A second registration barrier is provided extending substantially normal to the first barrier. The second barrier is adapted to contact a second side of the document. The second barrier comprises the closed nip of a set of pinch rolls, and means for inhibiting the rotation of the pinch rolls during the registration of the document. A copying apparatus including the above is also claimed.
Inventors
- 👤 Werner F Hoppner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:22
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/625
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
204 words
An electrostatographic copying apparatus including means for forming an image of the original input scene information on a document for projection onto a photosensitive surface, a document feeder for feeding said documents in a desired direction past said imaging means, said feeder including at least one set of pinch rolls having a closed nip for advancing said documents, the improvement wherein: corner registration means are provided for aligning said document prior to its advancement, said registration means including a first registration barrier extending in a direction substantially parallel to the direction in which said document is to be fed, said barrier adapted to contact the first side of said document, a second registration barrier extending substantially normal to said first barrier, said second barrier adapted to contact the second side of said document, said second barrier comprising the closed nip of said pinch rolls, and means for inhibiting the rotation of said pinch rolls during registration of said document, said inhibiting means comprising a normally engaged clutch interposed between said drive means and said pinch rolls and first switch means for disengaging said clutch so that said drive is effective to rotate said pinch rolls except when said first switch means disengages said clutch.
Claim 2
Dependent Claim
204 words
An electrostatographic copying apparatus including means for forming an image of the original input scene information on a document for projection onto a photosensitive surface, a document feeder for feeding said documents in a desired direction past said imaging means, said feeder including at least one set of pinch rolls having a closed nip for advancing said documents, the improvement wherein: corner registration means are provided for aligning said document prior to its advancement, said registration means including a first registration barrier extending in a direction substantially parallel to the direction in which said document is to be fed, said barrier adapted to contact the first side of said document, a second registration barrier extending substantially normal to said first barrier, said second barrier adapted to contact the second side of said document, said second barrier comprising the closed nip of said pinch rolls, and means for inhibiting the rotation of said pinch rolls during registration of said document, said inhibiting means comprising a normally engaged clutch interposed between said drive means and said pinch rolls and first switch means for disengaging said clutch so that said drive is effective to rotate said pinch rolls except when said first switch means disengages said clutch.
Claim 3
Dependent Claim
14 words
An apparatus as in claim 1, wherein said first switch means is manually operable.
Claim 4
Dependent Claim
16 words
An apparatus as in claim 2 wherein said first registration barrier comprises an elongated strip member.
Claim 5
Dependent Claim
106 words
An apparatus as in claim 3 wherein said imaging means includes means for providing a flowing light image from a stationary document supported upon a viewing platen in a first mode of operation and for providing a flowing light image of a moving document in a second mode of operation and wherein the flowing light image of the stationary document is provided by optical means for scanning the stationary document and wherein the flowing light image of the moving document comprises means for fixing the scanning optical means in a given position and said document feeder positioned for feeding said document past said fixed optical means.
Claim 6
Dependent Claim
62 words
An apparatus as in claim 3 wherein said clutch includes a detent collar having a plurality of serrations spaced radially abouts its circumference and wherein said first switch means includes a movable pin which can engage said serrations and thereby prevent said detent collar from rotating, whereby when said pin engages said serrations said clutch disengages said drive from said pinch rollers.
Claim 7
Dependent Claim
209 words
A document feeder for feeding documents to an imaging means for creating an image of the input scene information for projection onto a photosensitive surface, said feeder including at least one set of pinch rolls having a closed nip for advancing said documents in a desired direction past said imaging means to create said image and drive means for driving said pinch rolls, the improvement wherein: coRner registration means are provided for aligning said document prior to its advancement, said registration means including a first registration barrier extending in a direction substantially parallel to the direction in which said document is to be fed, said barrier adapted to contact the first side of said document, a second registration barrier extending substantially normal to said first barrier, said second barrier adapted to contact a second side of said document, said second barrier comprising the closed nip of said pinch rolls, and means for inhibiting the rotation of said pinch rolls during registration of said document, said inhibiting means comprising a normally engaged clutch interposed between said drive means and said pinch rolls, and first switch means for disengaging said clutch so that said drive is effective to rotate said pinch rolls except when said first switch means disengages said clutch.
Claim 8
Dependent Claim
209 words
A document feeder for feeding documents to an imaging means for creating an image of the input scene information for projection onto a photosensitive surface, said feeder including at least one set of pinch rolls having a closed nip for advancing said documents in a desired direction past said imaging means to create said image and drive means for driving said pinch rolls, the improvement wherein: coRner registration means are provided for aligning said document prior to its advancement, said registration means including a first registration barrier extending in a direction substantially parallel to the direction in which said document is to be fed, said barrier adapted to contact the first side of said document, a second registration barrier extending substantially normal to said first barrier, said second barrier adapted to contact a second side of said document, said second barrier comprising the closed nip of said pinch rolls, and means for inhibiting the rotation of said pinch rolls during registration of said document, said inhibiting means comprising a normally engaged clutch interposed between said drive means and said pinch rolls, and first switch means for disengaging said clutch so that said drive is effective to rotate said pinch rolls except when said first switch means disengages said clutch.
Claim 9
Dependent Claim
14 words
An apparatus as in claim 6 wherein said first switch means is manually operable.
Claim 10
Dependent Claim
17 words
A document feeder as in claim 7 wherein said first registration barrier comprises an elongated strip member.
Claim 11
Dependent Claim
63 words
A document feeder as in claim 8 wherein said clutch includes a detent collar having a plurality of serrations spaced radially abouts its circumference and wherein said first switch means includes a movable pin which can engage said serrations and thereby prevent said detent collar from rotating, whereby when said pin engages said serrations said clutch disengages said drive from said pinch rolls.
Claim 12
Dependent Claim
51 words
An apparatus as in claim 7, wherein said drive means continuously drives said pinch rolls when said machine is in a condition to make copies, and further including second switch means actuated in response to a sheet being fed by said pinch rolls for causing said machine to produce a copy.
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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |