Recorders – Printing – dotting – or punching marker – Ink transfer support or moving means
Patent
1988-03-25
1989-03-21
Goldberg, E. A.
Recorders
Printing, dotting, or punching marker
Ink transfer support or moving means
358296, G01D 942
Patent
active
048147923
ABSTRACT:
A lateral registration adjusting device for use in an optical writing system, such as a laser beam printer, is provided. When a sheet of recording paper has arrived at a registration roller which is driven to rotate intermittently in association with the rotation of a photosensitive drum, a discrepancy between the sheet of recording paper and a reference position in the lateral direction transverse to the direction of transportation of the sheet of recording paper is detected. Based on this information of lateral discrepancy, the writing start position for writing an image on the photosensitive drum in a scan line is adjusted such that the lateral discrepancy is absorbed. Thus, when the image is formed on the drum and then transferred onto the sheet of recording paper, there is obtained a predetermined relative positional relationship between the sheet of recording paper and the image in the lateral direction at all times.
REFERENCES:
patent: 4712118 (1987-12-01), Seto
patent: 4763241 (1988-08-01), Egawa
Tanaka Hidetake
Yamanobe Koji
Yamazaki Shigeru
Goldberg E. A.
Reinhart Mark
Ricoh & Company, Ltd.
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