Image forming apparatus

Details Image forming apparatus Image forming apparatus

1987-03-23

1988-08-09

Evans, Arthur G.

Recorders

Electric recording

Electrochemical

364519, G01D 1500

Patent

active

047632410

ABSTRACT:
An image forming apparatus including pairs of a latent image forming unit for forming the latent images with the scanning of the laser beams and a developing unit for developing the latent images which are disposed around the image bearing member to accomplish multi color printing; a detector for detecting a scanning point of a laser beam irradiated before the irradiation of the beam for the image forming; counters for counting detect signals corresponding to the scanning point of the laser beam and for generating allowable signals when the values of the detect signal reaches to predetermined set values; and a write control unit for controlling the latent image forming unit to irradiate the beams for the image forming upon the generation of the allowable signals. Namely, print starting points are adjusted in accordance with the scanning point of the laser beam before the irradiation of the beam for the image forming. Therefore, by setting each of the set values in accorance with the colors of printing or the image forming ranges, it is possible to correctly and speedly adjust the print starting points.

REFERENCES:
patent: 4566043 (1986-01-01), Tamura
patent: 4717925 (1988-01-01), Shibata et al.

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