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. 11, 2002
Filed:
Mar. 28, 2000
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
A method of pretreating an ink-jet printer ( ) before it is used is provided, wherein the printer includes a printing head ( ) provided with a plurality of nozzles ( ) for ejecting ink-droplets and movable in a reciprocating manner, an ink storage section ( ) and an ink supply conduit ( ) connecting the printing head with the ink storage section. The entirety of an ink flow passage including the ink supply conduit ( ) is filled with a colored liquid material ( ) having a function for maintaining the hydrophilic nature of the ink flow passage, before the ink-jet printer is forwarded from a factory. Then, before the ink-jet printer is assigned to the user, a printing operation is carried out by the printing head ( ) by using the colored liquid material ( ) and a character printed with the colored liquid material is observed to determine a printing function.