The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 2022
Filed:
Mar. 23, 2021
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Yoshihisa Masuda, Yokohama Kanagawa, JP;
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus includes a controller. The controller is configured to switch between (i) first speed printing in which a rotation speed of the polygon mirror is a first speed and the power of a laser beam from a first and second laser light sources is a first laser power, and (ii) second speed printing in which the speed of the mirror is slower than the first speed and the power of laser beam from the light sources is a second power weaker than the first power. The controller is configured to control an output timing of the laser beam from the light sources in the second speed printing based on the timings at which the laser beam is detected by first photodetector and second photodetectors when the laser powers of the first laser light source and the second laser light source are changed, respectively.