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:
Feb. 02, 2021
Filed:
Jul. 03, 2019
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Tomoya Teraji, Hino, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
B41J 2/0458 (2013.01); B41J 2/0451 (2013.01); B41J 2/0457 (2013.01); B41J 2/04541 (2013.01); B41J 2/04548 (2013.01); B41J 2202/20 (2013.01);
Abstract
A second power is lower than a first power to be supplied during a printing operation. In a case where the second power is supplied to a print head through a cable as a drive power for the nozzles in the print head, the change in voltage of the second power is detected. The nozzles in the nozzle arrays are driven on an array-by-array basis with the second power on the basis of a control signal, and whether there is breakage in the cable is detected on the basis of the result of the detection of the change in voltage of the second power during the driving of the nozzles.