Patent US4727387A successfully refreshed from Google Patents.
US4727387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper-handling mechanism for laser printer
Assignee: Sanyo Electric Co Ltd
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Filing: 1987-06-24
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Granted: 1988-02-23
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Expires: 2007-06-24
Abstract
Abstract A paper-handling mechanism for a laser printer is positioned below the laser printer engine and is confined within the limits of an area defined by the vertically downward projections of the edges of the fixed are a occupied by the laser printer engine. The paper-handling mechanism comprises a vertically positioned open top ended supply magazine for a stack of cut sheet paper, feed means for feeding cut sheets of paper one at a time upwardly from the supply magazine into the printing station of the laser printer engine, an open top ended output tray positioned vertically for receiving the sheets of paper from the printing station and feed means for delivering sheets of paper one at a time from the printing station to the output tray.
Inventors
- 👤 Ilan Israely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:24
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6529; G03G15/04; G03G15/04036; G03G15/04045; G03G15/04072; G03G15/22; G03G15/32; G03G15/326; G06; G06K; G06K15/00; G06K15/02; G06K15/16; H; H04; H04N; H04N1/00; H04N1/00567
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
138 words
A laser printer and associated paper-handling equipment comprising: a. a laser printer having components which include a printing drum and a printing station, said drum being positioned on the approximate center axis of the printer, said printer occupying a fixed area; b. paper-handling mechanism positioned within limits of an area defined by vertical projections of the edges of said fixed laser-printer area, said paper-handling mechanism comprising: (1) a vertically positioned magazine for a supply of cut sheet paper; (2) first feed means for feeding sheets of cut paper one at a time from said supply magazine through said printing station; (3) a generally vertically positioned output tray having an open end; and (4) second feed means for delivering sheets of printed paper one at a time from said printing station into said open end of said output tray.
Claim 2
Dependent Claim
138 words
A laser printer and associated paper-handling equipment comprising: a. a laser printer having components which include a printing drum and a printing station, said drum being positioned on the approximate center axis of the printer, said printer occupying a fixed area; b. paper-handling mechanism positioned within limits of an area defined by vertical projections of the edges of said fixed laser-printer area, said paper-handling mechanism comprising: (1) a vertically positioned magazine for a supply of cut sheet paper; (2) first feed means for feeding sheets of cut paper one at a time from said supply magazine through said printing station; (3) a generally vertically positioned output tray having an open end; and (4) second feed means for delivering sheets of printed paper one at a time from said printing station into said open end of said output tray.
Claim 3
Dependent Claim
87 words
Apparatus according to claim 1 wherein: a. said paper handling mechanism is positioned below said laser printer and within limits of an area defined by vertically downward projections of the edges of said fixed laser-printer area; and b. wherein said first feed means are adapted to feed sheets of cut paper one at a time upwardly from said supply magazine; and c. wherein said second feed means are adapted to deliver sheets of paper, one at a time, downwardly into the open end of said output tray.
Claim 4
Dependent Claim
40 words
Apparatus according to claim 2 wherein said printing station is located at the underside of said printing drum and wherein guide means are provided to guide said sheets of cut paper along a generally horizontal path through said printing station.
Claim 5
Dependent Claim
27 words
Apparatus according to claim 2 wherein a control panel for said laser printer is provided positioned below said printing drum and between said input and output trays.
Claim 6
Dependent Claim
141 words
Paper-handling mechanism for a laser printer having an engine which includes a printing drum and a printing station, said paper-handling mechanism being positioned below said laser printer engine and occupying horizontal space no larger than that occupied by said engine, said paper-handling mechanism comprising: a. a vertically positioned magazine for a supply of cut sheet paper, said magazine having an open top end; b. feed means for feeding sheets of cut paper one at a time upwardly through the open top end of said magazine; c. first nip rolls for receiving said sheets of paper and feeding same toward said printing station; d. a vertically positioned output tray having an open top end; and e. second nip rolls for delivering sheets of cut paper, one at a time from said printing station into the open top end of said output tray.
Claim 7
Dependent Claim
141 words
Paper-handling mechanism for a laser printer having an engine which includes a printing drum and a printing station, said paper-handling mechanism being positioned below said laser printer engine and occupying horizontal space no larger than that occupied by said engine, said paper-handling mechanism comprising: a. a vertically positioned magazine for a supply of cut sheet paper, said magazine having an open top end; b. feed means for feeding sheets of cut paper one at a time upwardly through the open top end of said magazine; c. first nip rolls for receiving said sheets of paper and feeding same toward said printing station; d. a vertically positioned output tray having an open top end; and e. second nip rolls for delivering sheets of cut paper, one at a time from said printing station into the open top end of said output tray.
Claim 8
Dependent Claim
35 words
A mechanism according to claim 5 wherein guide means are provided for guiding sheets of cut paper, one at a time, from said first nip rolls through said printing station into said second nip rolls.
Claim 9
Dependent Claim
147 words
A laser printer and associated paper-handling equipment comprising: a. a laser printer engine having a printing drum and a printing station at the undersurface of said drum, said engine occupying a fixed area in the horizontal plane; b. paper-handling mechanism positioned below said printing station within limits of an area defined by downward vertical projections of the edges of the fixed area of said engine, said paper-handling mechanism comprising: (1) A vertically positioned magazine for a supply of cut paper, said magazine having, and open top end; (2) first feed means for feeding sheets of cut paper one at a time upwardly from said supply magazine and into and through said printing station; (3) a vertically positioned output tray having an open top end; and (4) second feed means for delivering sheets of paper one at a time from said printing station downwardly into said output tray.
Claim 10
Dependent Claim
147 words
A laser printer and associated paper-handling equipment comprising: a. a laser printer engine having a printing drum and a printing station at the undersurface of said drum, said engine occupying a fixed area in the horizontal plane; b. paper-handling mechanism positioned below said printing station within limits of an area defined by downward vertical projections of the edges of the fixed area of said engine, said paper-handling mechanism comprising: (1) A vertically positioned magazine for a supply of cut paper, said magazine having, and open top end; (2) first feed means for feeding sheets of cut paper one at a time upwardly from said supply magazine and into and through said printing station; (3) a vertically positioned output tray having an open top end; and (4) second feed means for delivering sheets of paper one at a time from said printing station downwardly into said output tray.
References Cited (Backward Citations)
US4279504A
Cited
US4630129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-22 | 1991-08-24 | 1992-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-22 | 1995-08-24 | 1996-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-22 | 1999-08-24 | 2000-02-23 | $7700.00 | Window Closed / Lapsed |