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, 1996
Filed:
Mar. 18, 1994
Applicant:
Inventor:
Mitsuhide Soga, Kanagawa, JP;
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
347 30 ; 417326 ;
Abstract
A method of recovering ink jet performance of an ink jet recording apparatus, comprises the steps of: first covering a nozzle surface of an ink jet head with a cap; sucking the nozzle surface of the ink jet head to a vacuum by driving a variable vacuum suction pump for suction at a normal suction speed, the variable vacuum suction pump being connected to the cap through a communication member so as to communicate therewith; and thereafter driving the variable vacuum suction pump for idle suction at a speed that is lower than the normal suction speed with the cap moved away from the nozzle surface of the ink jet head.