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:
May. 02, 1995
Filed:
Oct. 18, 1993
Kazuhisa Maruyama, Tokyo, JP;
Masaru Ushio, Tokyo, JP;
Junji Sato, Tokyo, JP;
Satoshi Sakata, Tokyo, JP;
Tomoo Kudo, Tokyo, JP;
Tadashi Matsudaira, Tokyo, JP;
Hiroyuki Watanabe, Tokyo, JP;
Yoshikazu Maekawa, Tokyo, JP;
Konica Corporation, Tokyo, JP;
Abstract
An electric circuit provided with an abnormal condition detector for a motor, for use in a toner image forming apparatus, includes a current detection circuit for detecting a presence of a current when a power supply circuit is switched OFF; a test circuit for confirming a line connection between a control circuit and a switch by transmitting a test signal between the control circuit and the switch and a control circuit for determining an abnormal section causing an abnormal condition of a motor.