Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1986-07-29
1988-12-20
Prescott, A. C.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355 8, 355 55, G03G 1500
Patent
active
047928280
ABSTRACT:
An image forming apparatus capable of effecting plural image forming operations on one transfer sheet includes an image transfer device for transferring an image on the transfer sheet, an image magnification changing mechanism for changing the magnification of the image to be transferred onto the transfer sheet, and a control device for controlling the magnification changing mechanism in accordance with deformation of the transfer sheet caused by an image forming operation on the transfer sheet, after a first image is formed on the transfer sheet and before a second image is formed on the same transfer sheet, whereby those images are correctly registered.
REFERENCES:
patent: 3960445 (1976-06-01), Drawe
patent: 4277163 (1981-07-01), Ikesue et al.
patent: 4505579 (1985-03-01), Furvichi
patent: 4657380 (1987-04-01), Hamano et al.
Kasamura Toshirou
Kimura Akiyoshi
Koike Michiro
Kubota Atsushi
Kusumoto Toshihiko
Canon Kabushiki Kaisha
Lau Jane
Prescott A. C.
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