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:
Nov. 11, 2014
Filed:
Jan. 25, 2013
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Kunihiko Kondo, Handa, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya-Shi, Aichi-Ken, JP;
Abstract
A reference value of an electric current flowing through each charging member is determined and recorded in a memory unit at a predetermined time by a reference value recording unit. A voltage application unit is caused to start applying a voltage to the charging members upon startup of an image forming apparatus, and a measurement value of an electric current flowing through each charging member is determined by a measurement unit. A charging member of which the measurement value is such that an absolute value of a difference between the reference value and the measurement value is not smaller than a predetermined value is marked by a determination unit. If there is at least one marked charging member and at least one not-marked charging member, a notification produced by a messaging unit is given through a notification unit.