Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1976-10-27
1978-09-12
Pellinen, A. D.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
G03G 2100
Patent
active
041133749
ABSTRACT:
The present invention is an electrophotographic copying apparatus which includes a group of switches disposed along the path of the copy paper. These switches are so arranged as to control the functions of corona charging, exposure and aligning the forward edge of the image formed on the photoreceptor with the leading edge of the copy paper, while the starting of the transfer device and the function of the copy paper separation device are controlled through a control cam which is driven by actuating signals produced by one of these switches. Since the developing and transfer functions are arranged to be suspended by a drum cam rotating as one unit with the photoreceptor drum, the possibility of copy paper jamming is decreased to a large extent through reduction of the number of switches employed, while undesirable developing and transfer at the slot portion or seam portion of the photoreceptor are advantageously eliminated.
REFERENCES:
patent: 3960446 (1976-06-01), Ogawa et al.
patent: 4025180 (1977-05-01), Kurita et al.
patent: 4027965 (1977-06-01), Mikasa et al.
Inagaki Syotaro
Kono Tateomi
Murata Tomoji
Nakamura Yoshihiro
Shibazaki Kenji
Minolta Camera Kabushiki Kaisha
Pellinen A. D.
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