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:
Jan. 17, 2012
Filed:
Feb. 10, 2009
Ken Tsuchiya, Kanagawa, JP;
Ken Tsuchiya, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
The exposure device includes: a light output device outputting light for exposing a charged image carrier, and including light-emitting elements caused to emit light or not through a control using a light-emission signal, switch elements provided corresponding to the light-emitting elements, and sequentially turned on to set the light-emitting elements ready to emit light, a transfer-signal generating unit generating a transfer signal for sequentially turning on the switch elements, a light-emission signal supply unit supplying the light-emission signal to the light-emitting elements, and a detection unit causing the transfer-signal generating unit to generate a transfer signal having cycles whose number is larger than that of the light-emitting elements, and detecting a potential of an output region of the light-emission signal supply unit while making an output from the light-emission signal supply unit high impedance; and an optical member focusing light outputted by the light output device onto the image carrier.