EP0343948A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
An electrophotographic printer
Assignee: Koki Holdings Co Ltd
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Filing: 1989-05-24
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Granted: —
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Expires: 2009-05-24
Abstract
Abstract An electrophotographic printer comprises a photosensitive drum (7); a form feeder having means (5) for feeding cut sheets (CS) to the photosensitive drum and means (3) for feeding fan-fold forms (FF) to the photosensitive drum, both feeding means being provided in parallel adjacent to the photosensitive drum. A frame (13) is driven towards the photosensitive drum to allow forms fed by the form feeder to make contact with the photosensitive drum. The frame is provided with means (12) for transferring images on the photosensitive drum to the forms in contact with the drum. A conveyor (14) conveys the forms away from the transfer means to a fuser unit (15) for fixing the images on the forms. Means (18) are provided for discharging the forms from the fuser unit to individual receptacles (26,25) for the cut sheets (CS) and the fan-fold forms (FF).
Inventors
- 👤 Takeyuki Ishihara
- 👤 Tesuo Kanno
- 👤 Seiichi Mori
- 👤 Masayuki Ainoya
- 👤 Junji Shirakawa
- 👤 Shogo Nobumori
- 👤 Takahiro Kikuchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 18:19
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6517; G03G15/6526; G03G15/14; G03G15/16; G03G15/163; G03G15/1635; G03G15/164; G03G15/6552; G03G2215/00; G03G2215/00362; G03G2215/00367; G03G2215/00371; G03G2215/00409; G03G2215/00417; G03G2215/00421; G03G2215/00443; G03G2215/00447; G03G2215/00451; G03G2215/00455; G03G2215/00459; G03G2215/00535; G03G2215/00544
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
137 words
An electrophotographic printer comprising a photosensitive drum (7); a form feeder having means (5) for feeding cut sheets (CS) to said photosensitive drum and means (3) for feeding fan-fold forms (FF) to said photosensitive drum, both means being provided in parallel adjacent to said photosensitive drum; a frame (13) capable of being driven towards said photosensitive drum to allow forms fed by said form feeder to make contact with said photosensitive drum; means (12) provided on said frame for transferring images on said photosensitive drum to the forms in contact with said drum; a conveyor belt (14) for sucking forms from said transfer means with a suction pressure to convey said forms; means (15) for fixing transferred images on the forms conveyed by said conveyor belt; and means (18) for discharging the forms from the fixing means.
Claim 2
Dependent Claim
137 words
An electrophotographic printer comprising a photosensitive drum (7); a form feeder having means (5) for feeding cut sheets (CS) to said photosensitive drum and means (3) for feeding fan-fold forms (FF) to said photosensitive drum, both means being provided in parallel adjacent to said photosensitive drum; a frame (13) capable of being driven towards said photosensitive drum to allow forms fed by said form feeder to make contact with said photosensitive drum; means (12) provided on said frame for transferring images on said photosensitive drum to the forms in contact with said drum; a conveyor belt (14) for sucking forms from said transfer means with a suction pressure to convey said forms; means (15) for fixing transferred images on the forms conveyed by said conveyor belt; and means (18) for discharging the forms from the fixing means.
Claim 3
Dependent Claim
51 words
An electrophotographic printer as claimed in Claim 1, wherein the circumferential speed of said photosensitive drum is controlled to be slightly lower than the conveying speed of the forms when fan-fold forms are used, and to be the same as the conveying speed of the forms when cut sheets are used.
Claim 4
Dependent Claim
30 words
An electrophotographic printer as claimed in Claim 1 or claim 2, wherein the rotation of said photosensitive drum is so controlled as to stop when the fan-fold forms are cut.
Claim 5
Dependent Claim
68 words
An electrophotographic printer as claimed in any preceding Claim, further comprising means for driving said frame toward said photosensitive drum so that the gap between the photosensitive drum and the frame when fan-fold forms are used is smaller than the gap between the photosensitive drum and the frame when cut sheets are used, and for driving the frame away from the drum when printing is not being performed.
Claim 6
Dependent Claim
40 words
An electrophotographic printer as claimed in any preceding Claim, wherein the frame is so fabricated that the gap between the photosensitive drum and the frame during printing is larger on the conveyor belt side than on the form feeder side.
Claim 7
Dependent Claim
34 words
An electrophotographic printer as claimed in any preceding Claim, further comprising a presser guide for pushing forms to widen the gap between the photosensitive drum and the forms when printing is not being performed.
Claim 8
Dependent Claim
41 words
An electrophotographic printer as claimed in any preceding Claim, wherein the speed of said conveyor belt in the form conveying direction is so controlled as to be higher when fan-fold forms are used than the speed when cut sheets are used.
Claim 9
Dependent Claim
31 words
An electrophotographic printer as claimed in any preceding Claim, wherein said suction pressure is so controlled as to be higher when cut sheets are used than when fan-fold forms are used.
Claim 10
Dependent Claim
56 words
An electrophotographic printer as claimed in any preceding Claim, wherein the path in said form discharging means is branched by a first flapper into a cut sheet path and a fan-fold path, and said cut sheet path is branched by a second flapper into a path to a form reversing means and a form forwarding path.
References Cited (Backward Citations)
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