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:
Jun. 20, 2000
Filed:
Nov. 26, 1997
Applicant:
Inventor:
Yuichi Kaneko, Fukushima, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
347 37 ; 347 17 ;
Abstract
A printing apparatus and method therefor reduces power-source capacity of the apparatus imposing any load on the printing apparatus and varying its printing speed. In parallel to printing operation, the number of print dots is counted by using a counter, and information amount for calculating the scanning period for each scanning is measured by also using a counter. Then, at the completion of each scanning, a print-duty ratio is calculated from the number of print dots and the information amount for calculating the scanning period for each scanning, and a waiting period to delay starting of the next scanning is set, based on the calculated duty ratio.