Electrophotography – Control of electrophotography process – Of plural processes
Patent
1997-04-03
1998-04-21
Lee, S.
Electrophotography
Control of electrophotography process
Of plural processes
399303, 399396, G03G 1500
Patent
active
057428670
ABSTRACT:
An image forming apparatus which sequentially transfers and superimposes sequentially formed electrostatic latent images onto a sheet wound around a sheet support. The image forming apparatus have either a photoconductor where the electrostatic latent images are sequentially formed on the surface or a plurality of photoconductors where the electrostatic latent images are formed respectively and sequentially. The quantity of print dot misregister is detected by forming reference patterns on a sheet and by reading the formed reference patterns. The rotational speed of conveying rollers for delivering a sheet to the sheet support is switched over in response to the quantity of the print dot misregister. The rotational speed of the conveying rollers can also be switched over in response to the thickness of a sheet. In the case that the image forming apparatus is a full-color copying machine, the electrostatic latent images are of four types for cyan, magenta, yellow and black.
REFERENCES:
patent: 5122835 (1992-06-01), Rushing et al.
patent: 5175585 (1992-12-01), Matsubayashi et al.
patent: 5311215 (1994-05-01), Hattori et al.
patent: 5383014 (1995-01-01), Nowak et al.
patent: 5404202 (1995-04-01), Abramsohn
Lee S.
Minolta Co. , Ltd.
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