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. 18, 2003
Filed:
Jan. 28, 1999
Katsuyoshi Tandou, Tokyo, JP;
Kunio Hakkaku, Tokyo, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A control method of an ink jet printer having plural ink jet heads which are mounted on a carriage that reciprocates in a direction substantially orthogonal to a conveying direction of a recording sheet, and are deviated in the reciprocating direction of the carriage. The ejection time width for recording one dot by ejecting ink from each ink jet head is divided into plural pitches, each pitch is associated with an address of a timing data memory, and data indicative of ejection timing of each ink jet head is stored in the corresponding address of the memory. The data indicative of the ejection timing is read from the memory in address order to independently control the ejection timing of each ink jet head. Even when the mounting position of the ink jet head is deviated within the range of each dot, adequate recording can be performed without any dot deviation by adjusting the ejection timing.