Title:
画像形成装置
Document Type and Number:
Japanese Patent JP6671931
Kind Code:
B2
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.
Inventors:
Yuichi Seki
Application Number:
JP2015223931A
Publication Date:
March 25, 2020
Filing Date:
November 16, 2015
Export Citation:
Assignee:
Canon Inc
International Classes:
G02B26/10; B41J2/47; H04N1/113
Domestic Patent References:
| JP2006269831A | ||||
| JP2013059906A | ||||
| JP2005129842A | ||||
| JP11245439A | ||||
| JP2011216843A | ||||
| JP2009001006A | ||||
| JP2069783A | ||||
| JP2003248368A | ||||
| JP2004262126A | ||||
| JP2005208071A | ||||
| JP2011031608A | ||||
| JP2012198482A | ||||
| JP2015217674A |
Foreign References:
| US20080123702 |
Attorney, Agent or Firm:
Okabe
Takao Ochi
Koji Yoshizawa
Masami Saito
Takao Ochi
Koji Yoshizawa
Masami Saito