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. 08, 2005
Filed:
Jun. 29, 2000
Yuichi Higuchi, Funabashi, JP;
Yuichi Higuchi, Funabashi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A calibration for the printing apparatus is performed under relatively easy management by a host computer and then the printing apparatus always can perform printing in a condition where an appropriate calibration is made for the printing apparatus. More specifically, the printer holds calibration data downloaded from the host computer and executes a density control (S) which generates calibration data at a predetermined timing independently in the printer. Then, the printer checks whether a difference between a print density value represented by the calibration data generated in the printer and a print density value represented by the calibration data held is greater than a predetermined threshold value (S). When the difference is greater than the predetermined value, the printer notifies an error (S) and sets a correction table based on the calibration data generated by the printer (S).