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:
Dec. 19, 2017
Filed:
Apr. 08, 2015
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Inventor:
Su-hwan Kim, Suwon-si, KR;
Assignee:
S-PRINTING SOLUTION CO., LTD., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/58 (2006.01); B41J 2/45 (2006.01); G01R 31/44 (2006.01); G03G 15/04 (2006.01); H04N 1/036 (2006.01);
U.S. Cl.
CPC ...
B41J 2/45 (2013.01); G01R 31/44 (2013.01); G03G 15/04054 (2013.01); H04N 1/036 (2013.01);
Abstract
An image forming apparatus includes a plurality of light-emitting element array chips including a light-emitting element array and a transfer element array, and a control driver applying a signal to the plurality of light-emitting element array chips. The control driver includes a check terminal that measures signals output from the plurality of light-emitting element array chips, and the control driver determines whether any of the plurality of light-emitting element array chips are defective by analyzing the signals measured at the check terminal.