Patent Number: 6,169,563

Title: Image recording apparatus having a plurality of laser diodes

Abstract: In an image recording apparatus provided with an optical unit having a plurality of laser diodes; a driving circuit is provided to drive the plurality of laser diodes in accordance with image output signals applied with a predetermined first bias; and a beam intensity measuring element is provided to measure a beam intensity of each of beams emitted from the plurality of laser diodes. When the beam intensity measuring element measures the beam intensity of each of beams emitted from the plurality of laser diodes, the driving circuit switches the first bias applied to at least one of the plurality of laser diodes to a second bias smaller than the first bias.

Inventors: Doi; Masato (Hino, JP)

Assignee: Konica Corporation

International Classification: B41J 2/45 (20060101); H04N 1/40 (20060101); B41J 002/437 ()

Expiration Date: 01/02/2018