Patent EP0171114A1 successfully refreshed from Google Patents.
EP0171114A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electrophotographic device
Assignee: Canon Production Printing Netherlands BV
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Filing: 1985-07-16
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Granted: —
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Expires: 2005-07-16
Abstract
Abstract Electrophotographic copying device provided with a photoconductive element (1), means (6-11) for forming a powder image on the element (1), and an intermediate support (12) which under the influence of pressure is able to pick up the powder image from the element (1) and then able, under the influence of pressure and heat, to transfer the image to and to fix it on a copy sheet. Further the device is provided with means (26), e. g. blower slots, for cooling that part of the surface of the intermediate support (12) which has not been in contact with the copy sheet.
Inventors
- 👤 Leon Maria Willem Winthaegen
- 👤 Georgius Hermanus Schipper
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 18:30
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2064; G03G15/14; G03G15/16; G03G15/1605; G03G15/161; G03G15/22; G03G15/24
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
164 words
Electrophotographic copying device provided with a moving, endless photoconductive element, means for forming a powder image on the element by electrostatically charging, image-wise exposing and developing, an endless intermediate support whose movement is synchronised with that of the element and which, under the influence of pressure, is able to accept the powder image from the element and is then able, under the influence of pressure and heat, to transfer the image to and fix it on a copy sheet, means for pressing the intermediate support against the element in a first zone and against the copy sheet in a second zone, means for heating the intermediate support, and means for moving the copy sheet to the said second zone, characterised in that the device is also provided with means (26,28) which, whilst the intermediate support is moving from the second zone to the first, cool that part of its surface which has not been in contact with the copy sheet in the second zone.
Claim 2
Dependent Claim
164 words
Electrophotographic copying device provided with a moving, endless photoconductive element, means for forming a powder image on the element by electrostatically charging, image-wise exposing and developing, an endless intermediate support whose movement is synchronised with that of the element and which, under the influence of pressure, is able to accept the powder image from the element and is then able, under the influence of pressure and heat, to transfer the image to and fix it on a copy sheet, means for pressing the intermediate support against the element in a first zone and against the copy sheet in a second zone, means for heating the intermediate support, and means for moving the copy sheet to the said second zone, characterised in that the device is also provided with means (26,28) which, whilst the intermediate support is moving from the second zone to the first, cool that part of its surface which has not been in contact with the copy sheet in the second zone.
Claim 3
Dependent Claim
52 words
Device according to claim 1, characterised in that the said cooling means (26,28) comprise one or more blower slots (29), connected to an air pump, through which cooling air can be blown on to the intermediate support and which can be activated depending on the dimensions of the copy sheet being used.
References Cited (Backward Citations)
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