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, 1994
Filed:
Jan. 07, 1993
Takahiro Wakikaido, Osaka, JP;
Takeshi Sakaguchi, Osaka, JP;
Mita Industrial Co., Ltd., , JP;
Abstract
An image forming apparatus according to the present invention includes a first processing device which processes in a normal mode for dynamically driving photoelectric detectors in groups so as to sequentially read detection signals from the photoelectric detectors in the groups, second processing device which process in a photoelectric detector check mode for driving a designated group of photoelectric detectors. Switching between processes by the processors is accomplished by a switching device. When the photoelectric detectors are checked, the photoelectric detector driving mode is switched from the normal mode to the photoelectric detector check mode by the switching device.