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:
Oct. 29, 2002
Filed:
Jan. 23, 2002
Masahiko Fujii, Ebina, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A driving condition setting method of an ink jet recording head enables stable discharge of an ink drop irrespective of a difference in a channel volume. In a thermal ink jet recording head, the displacement of a distance (channel volume) from a heating element to a nozzle surface is stored as data into a memory. The ink jet recording head is mounted on an ink jet recording device. A control unit of the ink jet recording device reads the data so as to set a driving condition (the number of pre-pulses) of the heating element based on the data. Therefore, even when the channel volume is displaced by a production error, an ink discharge state can be almost constant, and stable printing performance can be ensured.