Photocopying – Including fiber optics
Patent
1984-06-20
1985-09-10
Prescott, A. C.
Photocopying
Including fiber optics
355 14FU, 219216, 432 60, G03G 1500, B30B 304
Patent
active
045402671
ABSTRACT:
Disclosed is a roll-fusing apparatus comprising an internally heated fusing roller and a pressure roller including a coated roller core which has a cylindrical inner surface and an outer surface which is extended to give a saw-toothed or scalloped, repeatedly bent configuration. The coating of the roller core comprises a silicone elastomer which has a cylindrical outer configuration, and the inside of the coating is firmly bonded to the shaped outer surface of the roller core, such that the thickness of the coating varies over the length of the roller. In the roller gap of the roll-fusing apparatus, a passage speed profile is generated which shows a minimum in each of the two external zones of the pressure roller and in the middle of the roller and the maxima of which are located in the boundary surfaces between the central zone and the left-hand and right-hand external zones.
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patent: 4042804 (1977-08-01), Moser
patent: 4050886 (1977-09-01), Moser
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patent: 4269594 (1981-05-01), Umans et al.
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IBM Technical Disclosure Bulletin, vol. 16, No. 3, Aug. 1973; Fathergill et al.
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European Search Report, EP 84 10 6947, 1-08-84.
Hoechst Aktiengesellschaft
Prescott A. C.
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