MULTIBEAM WRITER

Japanese Patent JP3649581

B2

PROBLEM TO BE SOLVED: To suppress the deviation of a write start position in the main scanning direction of respective beams and to prevent an output image from being oscillated in the main scanning direction by providing a light quantity setting means for generating light beam detecting signals to be applied to sensors for every light beam and controlling quantities of respective light beams.
SOLUTION: This writer is provided with light quantity setting means (12-1 to 14-2, OR1, OR2 and MPU) for generating the light beam detecting signal to be applied to a sensor 11 and controlling the quantity of light. Then, the light beam detecting signals to be applied to sensors 11 for every light beam are generated by the light quantity setting means (12-1 to 14-2, OR1, OR2 and MPU), the quantities of light are respectively controlled and the level of the light beam detecting signals are controlled so as to generate respective synchronizing signals when every light beam is located at each reference position in respect to the sensor 11. By setting such a controlled value to the light quantity setting means, the write start position in the main scanning direction of respective beams is matched with each reference start position and the output image is not fluctuated in a main scanning direction (x).

Shuichi Yamazaki

JP9208798A

May 18, 2005

April 03, 1998

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株式会社リコー

B41J2/44; G02B26/10; (IPC1-7): G02B26/10; B41J2/44

JP4118616A
JP6297759A
JP8204273A
JP7205476A
JP5260266A
JP8304723A
JP11212003A
JP62284568A
JP62251765A

Nobuoki Sugi

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