US4579328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copy paper feeding device for electrophotographic copying machine
Assignee: Sharp Corp
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Filing: 1984-01-12
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Granted: 1986-04-01
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Expires: 2004-01-12
Abstract
Abstract An electrophotographic copying machine comprises a copy paper feeding device for serving for an automatic paper feeding mode and a manual paper feeding mode. The automatic paper feeding mode is such that a great number of papers as stored in the device are automatically inserted into the copying machine. The manual paper feeding mode is such that a manually inserted paper different from the papers stored in the device is inserted into the copying machine. A cover of the device is slided for selecting either the automatic paper feeding mode or the manual paper feeding mode. Responsive to the slide position of the cover, a stopper is seesawed for opening or closing an opening through which the manually inserted paper is to be transported.
Inventors
- 👤 Hideaki Hagihara
- 👤 Mitsuru Mizutani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:21
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6502; G03G15/6514; B; B65; B65H; B65H1/00; B65H1/04; B65H7/00; G03G2215/00; G03G2215/00362; G03G2215/00367; G03G2215/00379; G03G2215/00383; G03G2215/00392; G03G2215/00535; G03G2215/0054
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
228 words
A device for feeding at least one sheet of copy paper into an electrophotographic copying machine, said copying machine having a plurality of paper-pick-up rollers associated therewith, comprising: paper cassette means removably engaged with said copying machine for storing a plurality of copy papers; slidable cover means for covering said paper cassette means wherein said cover means is defined by a front edge and a back edge and is of a substantially rectangular shape; means adapted for for receiving manually inserted copy paper at a fixed position on said slidable cover means; said slidable cover means including a paper guide mounted beneath the front edge thereof and a stopper support member mounted on top of said slidable cover and between said front edge and back edge; paper stopper means of a substantially rectangular shape movable from an operative to an inoperative position for stopping the manual insertion of said copy paper when said stopper means is in said operative position; said paper stopper means being downwardly bent at the forward edge thereof and including a lever supporting member and a lever arm; and means for automatically feeding said copy paper from said paper cassette means into said copy machine responsive to the positioning of said slidable cover means and for feeding manually inserted copy paper into said copy machine responsive to the positioning of said slidable cover means.
Claim 2
Independent Claim
228 words
A device for feeding at least one sheet of copy paper into an electrophotographic copying machine, said copying machine having a plurality of paper-pick-up rollers associated therewith, comprising: paper cassette means removably engaged with said copying machine for storing a plurality of copy papers; slidable cover means for covering said paper cassette means wherein said cover means is defined by a front edge and a back edge and is of a substantially rectangular shape; means adapted for for receiving manually inserted copy paper at a fixed position on said slidable cover means; said slidable cover means including a paper guide mounted beneath the front edge thereof and a stopper support member mounted on top of said slidable cover and between said front edge and back edge; paper stopper means of a substantially rectangular shape movable from an operative to an inoperative position for stopping the manual insertion of said copy paper when said stopper means is in said operative position; said paper stopper means being downwardly bent at the forward edge thereof and including a lever supporting member and a lever arm; and means for automatically feeding said copy paper from said paper cassette means into said copy machine responsive to the positioning of said slidable cover means and for feeding manually inserted copy paper into said copy machine responsive to the positioning of said slidable cover means.
Claim 3
Dependent Claim
41 words
The device according to claim 1, wherein said means adapted for receiving manually inserted copy paper is defined by a slot formed between said slidable cover means and said paper stopper means at said fixed position on said slidable cover means.
Claim 4
Dependent Claim
73 words
The device according to claim 1, wherein said means for automatically feeding said copy paper includes means for rotatably mounting said paper stopper means about said stopper support member such that the front edge of said slidable cover means abuts the downwardly bent front edge of said paper stopper means when said paper stopper means is in said operative position thereby preventing any further travel of paper manually inserted at said fixed position.
Claim 5
Dependent Claim
77 words
A device according to claim 1, wherein said means for feeding said manually inserted copy paper includes means for rotating said paper stopper means about said stopper support member to said inoperative position such that said paper guide means is positioned beneath said paper-pick-up rollers and an opening is formed between the downwardly bent front edge of said paper stopper means and said slidable cover means thereby allowing manually inserted paper to engage with said paper-pick-up rollers.
Claim 6
Independent Claim
144 words
A device for feeding at least one sheet of copy paper into an electrophotographic copying machine, comprising: paper cassette means removably engaged with said copying machine for storing a plurality of copy papers; slidable cover means for covering said paper cassette means, said slidable cover means being movable from an automatic feeding position to a manual feeding position, said slidable cover means being capable of receiving manually inserted paper on the top thereof; paper feeding means for feeding manually inserted paper and for feeding paper in said cassette means; and paper stopper means movable from an operative to an inoperative position for stopping manual insertion of copy paper to said paper feeding means in said operative position, said paper stopper means being responsive to the position of said slidable cover means to move said paper stopper means from said operative to said inoperative position.
Claim 7
Independent Claim
144 words
A device for feeding at least one sheet of copy paper into an electrophotographic copying machine, comprising: paper cassette means removably engaged with said copying machine for storing a plurality of copy papers; slidable cover means for covering said paper cassette means, said slidable cover means being movable from an automatic feeding position to a manual feeding position, said slidable cover means being capable of receiving manually inserted paper on the top thereof; paper feeding means for feeding manually inserted paper and for feeding paper in said cassette means; and paper stopper means movable from an operative to an inoperative position for stopping manual insertion of copy paper to said paper feeding means in said operative position, said paper stopper means being responsive to the position of said slidable cover means to move said paper stopper means from said operative to said inoperative position.
Claim 8
Dependent Claim
56 words
A device according to claim 5, wherein said paper stopper means includes a paper stopper pivotally mounted to said slidable cover having a downwardly bent front end which stops manually inserted paper in the operative position and a stopper release lever which lifts said paper stopper when said slidable cover is in said manual feeding position.
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) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |