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1. (WO1991017487) MULTICOLOR IMAGE FORMING APPARATUS AND TRANSFER ROLLER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/017487 International Application No.: PCT/US1991/003001
Publication Date: 14.11.1991 International Filing Date: 01.05.1991
IPC:
G03G 15/01 (2006.01) ,G03G 15/16 (2006.01)
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15
Apparatus for electrographic processes using a charge pattern
01
for producing multicoloured copies
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15
Apparatus for electrographic processes using a charge pattern
14
for transferring a pattern to a second base
16
of a toner pattern, e.g. a powder pattern
Applicants:
EASTMAN KODAK COMPANY [US/US]; 343 State Street Rochester, NY 14650, US
Inventors:
JOHNSON, Kevin, Michael; US
ZEMAN, Robert, Edward; US
Agent:
TREASH, Leonard, W., Jr.; 343 State Street Rochester, NY 14650-2201, US
Priority Data:
519,99907.05.1990US
Title (EN) MULTICOLOR IMAGE FORMING APPARATUS AND TRANSFER ROLLER
(FR) APPAREIL DE FORMATION D'IMAGES MULTICOLORES ET ROULEAUX DE TRANSFERT
Abstract:
(EN) Multicolor electrophotographic apparatus secures the ends of a receiving sheet in a trough (45) which runs parallel to the axis of rotation of a transfer roller (11). An inclined surface (51) in the trough gradually declines the transfer sheet away from the periphery of the transfer roller to prevent a photoconductive drum (1) from receiving a jar as it rides off the edge of the transfer sheet. Preferably, the means defining the declining ramp surface also defines vacuum holes for securing the ends of the receiving sheet.
(FR) Un appareil électrophotographique multicolore fixe les extrémités d'une feuille de réception dans un creux (45) parallèle à l'axe de rotation d'un rouleau de transfert (11). Une surface inclinée (51) située dans le creux fait passer graduellement la feuille de transfert à l'opposé de la périphérie du rouleau de transfert afin d'empêcher qu'un tambour photoconducteur (1) ne reçoive un impact lorsqu'il quitte le bord de la feuille de transfert. Le moyen définissant la surface de la rampe descendante définit également, de préférence, des trous de vide permettant de fixer les extrémités de la feuille de réception.
Designated States: JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0481061