Light scanning apparatus and image forming apparatus
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United States of America Patent
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May 8, 2018
Grant Date -
May 18, 2017
app pub date -
Nov 7, 2016
filing date -
Nov 16, 2015
priority date (Note) -
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Abstract
A light scanning apparatus, including: a light source; a light intensity detecting portion configured to detect a light intensity of the light beam emitted from the light source; and a light intensity controller configured to control the light intensity based on a detection result of the light intensity detecting portion, wherein the light intensity controller is configured to supply, in advance, to the light source, a bias current smaller than a threshold current at which the light source starts emitting the light beam, and is configured to control a supply of a drive current to the light source, the drive current being generated by superimposing, on the bias current, a switching current for controlling the light source in accordance with an image signal, and the light intensity controller includes a current stopping unit configured to stop a supply of the bias current and the drive current to the light source.
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