EP0380130A2
Expired / Lapsed
EP
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Electrophotography apparatus with toner image bearing film
Assignee: Oki Electric Industry Co Ltd
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Filing: 1990-01-26
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Granted: —
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Expires: 2010-01-26
Abstract
Abstract An electrophotography apparatus comprises a photosensitive member (11), such as a photosensitive drum, a transfer section, and a toner image bearing film (14) passing by the photosensitive member, and through the transfer section. A charging device (15) uniformly charges the photosensitive member. An exposure device (16) exposes the photosensitive member (11) to a light image thereby to form a latent image. A developing device (17) is disposed facing the toner image bearing film passing by the photosensitive member, for causing toner to be attracted toward the photosensitive member, thereby forming a toner image on the toner image bearing film (14). A paper feed mechanism means feeds a recording paper through the transfer section, at which the toner image is transferred from the toner image bearing film to the recording paper. A fixing device fixes the toner image on the recording paper.
Inventors
- 👤 Shinichi C/O Oki Electric Ind. Co. Ltd. Itoh
- 👤 Hiroaki C/O Oki Electric Ind. Co. Ltd. Sato
- 👤 Kenzo C/O Oki Electric Ind. Co. Ltd. Tsuji
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 22:02
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/32; G03G15/326; G03G15/04; G03G15/04036; G03G15/04045; G03G15/226; G03G15/227; G03G2215/00; G03G2215/16; G03G2215/1676; G03G2215/168; G03G2215/1685
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
120 words
Electrophotography apparatus comprising: a photosensitive member; a transfer device; a toner image bearing film passing by the photosensitive member and through said transfer section; a charging device for uniformly charging a photosensitive member; an exposure device for exposing the photosensitive member to a light image; a developing device provided facing the toner image bearing film passing by the photosensitive member for causing toner to be attracted toward the photosensitive member, and thereby forming a toner image on the toner image bearing film which is passing by the photosensitive member; and a paper feed means for feeding a recording paper through said transfer device; said transfer device transferring the toner image on the toner image bearing film to the recording paper.
Claim 2
Dependent Claim
120 words
Electrophotography apparatus comprising: a photosensitive member; a transfer device; a toner image bearing film passing by the photosensitive member and through said transfer section; a charging device for uniformly charging a photosensitive member; an exposure device for exposing the photosensitive member to a light image; a developing device provided facing the toner image bearing film passing by the photosensitive member for causing toner to be attracted toward the photosensitive member, and thereby forming a toner image on the toner image bearing film which is passing by the photosensitive member; and a paper feed means for feeding a recording paper through said transfer device; said transfer device transferring the toner image on the toner image bearing film to the recording paper.
Claim 3
Dependent Claim
24 words
Apparatus according to claim 1, wherein said transfer device functions also as a fixing device for fixing said toner image on said recording paper.
Claim 4
Dependent Claim
48 words
Apparatus according to claim 2, wherein said toner is a heat fixing toner, and said transfer device comprises a heating roller and a pressure roller which are pressed against each other thereby to function also as a fixing device for fixing said toner image on said recording paper.
Claim 5
Dependent Claim
48 words
Apparatus according to claim 2, wherein said toner is a pressure fixing toner, and said transfer device comprises a first roller and a second roller which are pressed against each other thereby to function also as a fixing device for fixing said toner image on said recording paper.
Claim 6
Dependent Claim
40 words
Apparatus according to claim 1, wherein said exposure device is provided to face the photosensitive member through said toner image bearing film, and said toner image bearing film is transparent to the wavelengths of light used by said exposure device.
Claim 7
Dependent Claim
15 words
Apparatus according to claim 1, wherein said toner image bearing film is an endless film.
Claim 8
Dependent Claim
50 words
Apparatus according to claim 1, wherein said toner image bearing film is a two-ended film, said apparatus further comprising a supply roller from which said toner image bearing film is unwound, and a take-up roller for winding the toner image bearing film that has been passed through said transfer device.
Claim 9
Dependent Claim
40 words
Apparatus according to claim 6, wherein said transfer device comprises a heating roller and a pressure roller which are pressed against each other thereby to function also as a fixing device for fixing said toner image on said recording paper.
Claim 10
Dependent Claim
24 words
Apparatus according to claim 1, wherein said exposure device is provided to face the photosensitive member without interposition of the toner image bearing film.
Claim 11
Dependent Claim
64 words
Apparatus according to claim 1, wherein said transfer device is provided to face the photosensitive member through the toner image bearing film passing by the photosensitive member, said exposure device is provided to face the photosensitive member without interposition of the toner image bearing film, and said developing device collects any residual toner on the toner image bearing film and re-uses it for development.
References Cited (Backward Citations)
No citation records indexed.
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