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US4607291A Expired / Lapsed US ⏱️ 0.0 years remaining

Image forming apparatus

Assignee: Toshiba Corp
•
Filing: 1984-08-17
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Granted: 1986-08-19
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Expires: 2004-08-17
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Abstract

Abstract An overhead projector is provided adjacent to an image forming unit for forming an image on a sheet according to an image information. A conveying unit for conveying the sheet on which an image is formed by the image forming unit is provided between the image forming unit and the overhead projector. A detachable tray is located in the path between the conveyor unit and the overhead projector. The sheet on which an image is formed by the image forming unit is conveyed to the overhead projector and the image on the sheet is projected on a screen.

Inventors

  • 👤 Ken'ichi Oono

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 14:04
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/0035; H04N1/00352; G; G03; G03B; G03B21/00; G03B21/132; H04N1/00384; H04N1/00397; H04N1/00405; H04N1/00408; H04N1/00413; H04N1/00437; H04N1/46; H04N1/50

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 114 words
An image forming apparatus for forming an image on a sheet according to an image information and projecting the image formed on the sheet, comprising: image forming means for forming the image on the sheet according to an image information; projecting means, arranged adjacent to said image forming means, for projecting the image formed on the sheet; and conveying means for conveying the sheet having the image formed by said image forming means thereon to said projecting means, wherein said conveying means comprises a detachable discharge tray disposed on the path along which sheets are conveyed to the projecting means, for receiving sheets having the image thereon when said overhead projector is not used.
Claim 2
Dependent Claim 114 words
An image forming apparatus for forming an image on a sheet according to an image information and projecting the image formed on the sheet, comprising: image forming means for forming the image on the sheet according to an image information; projecting means, arranged adjacent to said image forming means, for projecting the image formed on the sheet; and conveying means for conveying the sheet having the image formed by said image forming means thereon to said projecting means, wherein said conveying means comprises a detachable discharge tray disposed on the path along which sheets are conveyed to the projecting means, for receiving sheets having the image thereon when said overhead projector is not used.
Claim 3
Dependent Claim 44 words
An apparatus according to claim 1, wherein said image forming means comprises a ribbon on which an ink is coated, and a thermal transfer unit for forming the image on the sheet by heating and melting the ink in accordance with the image information.
Claim 4
Dependent Claim 38 words
An apparatus according to claim 2, wherein said image forming apparatus further comprises a scanning unit for scanning a document to be copied and for supplying an image information corresponding to the document to said thermal transfer unit.
Claim 5
Dependent Claim 29 words
An apparatus according to claim 3, wherein said image forming apparatus further comprises a casing for integrally holding said thermal transfer unit, said projecting means, and said conveying means.
Claim 6
Dependent Claim 40 words
An apparatus according to claim 4, wherein said projecting means includes an overhead projector having an overhead projection table with a position control member at one side thereof so as to control a position of the sheet to be placed.
Claim 7
Dependent Claim 46 words
An apparatus according to claim 4, wherein said conveying means comprises a pair of convey rollers disposed between said image forming unit and said projecting means so as to convey the sheet on which the image is formed by said image forming unit to said table.
Claim 8
Dependent Claim 21 words
An apparatus according to claim 3, wherein said thermal transfer unit, said projecting means, and said conveying means are separately arranged.
Claim 9
Dependent Claim 45 words
An apparatus according to claim 7, wherein said conveying means is elongated so as to be mounted across an upper side surface of said thermal transfer unit and that of said projecting means, whereby said conveying means conveys the sheet by holding a portion thereof.
Claim 10
Dependent Claim 46 words
An apparatus according to claim 8, wherein said conveying means comprises a conveying mechanism having a conveyor belt which extends along a longitudinal direction thereof, and rollers having said conveyor belt there between for driving said conveyor belt, and a cover for covering said conveying mechanism.
Claim 11
Dependent Claim 58 words
An apparatus according to claim 9, wherein said conveying means comprises two of said conveying mechanisms provided in series with each other, and a groove is formed in a substantially central portion of said cover corresponding to a portion between said conveying mechanisms, whereby an operator manually feeds a desired sheet to said projecting means through said groove.
Claim 12
Dependent Claim 43 words
An apparatus according to claim 10, wherein said projecting means includes an overhead projector having a projection table and a tray for receiving a sheet at one side of said table and at a side along a conveying direction of said conveying means.
Claim 13
Dependent Claim 200 words
An image forming apparatus for forming an image on a sheet according to an image information and projecting the image formed on the sheet, comprising: image forming means for forming the image on the sheet according to an image information, said image forming means including a sheet feed cassette for storing a plurality of sheets to form an image thereon, and a manual feed guide for manually feeding the sheets one by one; projecting means, arranged adjacent to said image forming means, for projecting the image formed on the sheet, wherein said projecting means comprises a light-transmitting type overhead projector, said light-transmitting type overhead projector having an overhead projection table which is formed of a light-transmitting material and on which the sheet having the image thereon is placed, an optical source for illuminating said table, and a projection head for projecting the image; and conveying means for conveying the sheet having the image formed by said image forming means thereon to said projecting means, wherein said conveying means comprises a detachable discharge tray disposed on the path along which sheets are conveyed to the projecting means, for receiving sheets having the image thereon when said overhead projector is not used.
Claim 14
Dependent Claim 200 words
An image forming apparatus for forming an image on a sheet according to an image information and projecting the image formed on the sheet, comprising: image forming means for forming the image on the sheet according to an image information, said image forming means including a sheet feed cassette for storing a plurality of sheets to form an image thereon, and a manual feed guide for manually feeding the sheets one by one; projecting means, arranged adjacent to said image forming means, for projecting the image formed on the sheet, wherein said projecting means comprises a light-transmitting type overhead projector, said light-transmitting type overhead projector having an overhead projection table which is formed of a light-transmitting material and on which the sheet having the image thereon is placed, an optical source for illuminating said table, and a projection head for projecting the image; and conveying means for conveying the sheet having the image formed by said image forming means thereon to said projecting means, wherein said conveying means comprises a detachable discharge tray disposed on the path along which sheets are conveyed to the projecting means, for receiving sheets having the image thereon when said overhead projector is not used.
Claim 15
Dependent Claim 38 words
An apparatus according to claim 12, wherein said image forming apparatus further comprises a scanning unit for scanning a document to be copied and for supplying an image information corresponding to the document to said image forming means.
Claim 16
Dependent Claim 29 words
An apparatus according to claim 13, wherein said image forming apparatus further comprises a casing for integrally holding said thermal transfer unit, said overhead projector, and said conveying means.
Claim 17
Dependent Claim 32 words
An apparatus according to claim 14, wherein said overhead projection table comprises a position control member at one side thereof so as to control a position of the sheet to be placed.
Claim 18
Dependent Claim 21 words
An apparatus according to claim 13, wherein said image forming means, said overhead projector, and said conveying means are separately arranged.
Claim 19
Dependent Claim 84 words
An apparatus according to claim 16, wherein said conveying means is elongated so as to be mounted across an upper side surface of said image forming means and that of said overhead projection table, said conveying means including a conveying mechanism having a conveyor belt which extends along a longitudinal direction thereof and rollers having said conveyor belt therebetween for driving said conveyor belt, and a cover for covering said conveying mechanism, whereby said conveying means conveys the sheet by holding a portion thereof.
Claim 20
Dependent Claim 57 words
An apparatus according to claim 17, wherein said conveying means comprises two of said conveying mechanisms provided in series with each other, and a groove is formed in a substantially central portion of said cover corresponding to a portion between said conveying mechanisms, whereby an operator manually feeds a desired sheet to said table through said groove.
Claim 21
Dependent Claim 35 words
An apparatus according to claim 18, wherein said overhead projector comprises a tray for receiving a sheet at one side of said table and at a side along a conveying direction of said conveying means.
Claim 22
Dependent Claim 192 words
An image forming apparatus for forming an image on a sheet according to an image information and projecting the image formed on the sheet, comprising: image forming means for forming the image on the sheet according to an image information, said image forming means including a sheet feed cassette for storing a plurality of sheets to form an image thereon, and a manual feed guide for manually feeding the sheets one by one; projecting means, arranged adjacent to said image forming means, for projecting the image formed on the sheet, said projecting means including a light-transmitting type overhead projector, said light-transmitting type overhead projector having an overhead projection table which is formed of a light-transmitting material and on which the sheet having the image thereon is placed, an optical source for illuminating said table, and a projection head for projecting the image on a screen; conveying means for conveying the sheet having the image formed by said image forming means thereon to said projecting means; and a personal computer which is coupled to said image forming means, said personal computer generating an image signal which is supplied to said thermal transfer unit.
Claim 23
Dependent Claim 192 words
An image forming apparatus for forming an image on a sheet according to an image information and projecting the image formed on the sheet, comprising: image forming means for forming the image on the sheet according to an image information, said image forming means including a sheet feed cassette for storing a plurality of sheets to form an image thereon, and a manual feed guide for manually feeding the sheets one by one; projecting means, arranged adjacent to said image forming means, for projecting the image formed on the sheet, said projecting means including a light-transmitting type overhead projector, said light-transmitting type overhead projector having an overhead projection table which is formed of a light-transmitting material and on which the sheet having the image thereon is placed, an optical source for illuminating said table, and a projection head for projecting the image on a screen; conveying means for conveying the sheet having the image formed by said image forming means thereon to said projecting means; and a personal computer which is coupled to said image forming means, said personal computer generating an image signal which is supplied to said thermal transfer unit.

References Cited (Backward Citations)

US3187624A Cited
US4563468A Cited
US4404568A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-08-18 1990-02-17 1990-08-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-08-18 1994-02-17 1994-08-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-08-18 1998-02-17 1998-08-19 $7700.00 Window Closed / Lapsed

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