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:
Feb. 16, 1999
Filed:
Jan. 31, 1996
Canon Denshi Kabushiki Kaisha, Saitama, JP;
Abstract
An ink-jet printing apparatus which is capable of maintaining a predetermined clearance between a printing surface of a printing object and an ink-jet head, includes a printing object mounting portion, on which the printing object is mounted, an ink-jet unit provided so as to be capable of relative movement in an opposing direction with respect to the printing object mounting portion, and mounting an ink-jet head which can oppose the printing surface of the printing object, shifting means for shifting the ink-jet unit mounting portion relative to the printing object mounting portion in the opposing direction, and a clearance adjusting sensor provided at the side of the ink-jet unit mounting portion so as to be capable of contacting the printing surface of the printing object. The shifting means is driven in a direction where the clearance adjusting sensor is caused to to contact the printing surface of the printing object, the shifting means then is driven in the opposite direction when the clearance adjusting sensor comes into contact with the printing surface of the printing object, and relatively shifting the ink-jet unit mounting portion is shifted relative to the printing object mounting portion in a direction where the clearance adjusting sensor moves away from the printing surface of the printing object by a predetermined magnitude.