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:
Apr. 05, 2005
Filed:
Jan. 10, 2003
Yasuyuki Horie, Hitachinaka, JP;
Katsumi Ishizawa, Hitachinaka, JP;
Souichi Nakazawa, Hitachinaka, JP;
Yasuyuki Horie, Hitachinaka, JP;
Katsumi Ishizawa, Hitachinaka, JP;
Souichi Nakazawa, Hitachinaka, JP;
Hitachi Printing Solutions, Ltd., Ebina, JP;
Abstract
An electrophotographic device with a laser power correction device (and method therefor) includes a laser power detection sensor retractably disposed relative to a laser beam optical path of a laser beam, a laser power adjusting device for controlling laser power of the laser beam based on an output from the laser power detection sensor, and a controller for inserting the laser power detection sensor into the optical path and applying laser power correction when a total laser beam activation time has reached a predetermined time and printing is stopped.