or
Bookmark and Share
Ink jet printing apparatus
   
Document Number
US Patent 7246877
Issued Date
July 24, 2007
Link
Inventors
Map
Abstract
An ink jet printing apparatus including an ink jet head including an ink ejecting portion and an ejection-energy generating portion operable to eject ink droplets from the ink ejecting portion, a purging device operable to discharge the ink from the ink ejecting portion, without an operation of the ejection-energy generating portion, for thereby performing a purging operation to improve an ink ejecting state of the ink jet head, and a controller operable to control the purging device for performing the purging operation, and to control the ejection-energy generating portion for performing a flushing operation to discharge the ink from the ink ejecting portion to improve the ink ejecting state. The controller includes a flushing control portion operable to control the ejection-energy generating portion such that ink ejecting actions in the flushing operation are performed in a plurality of intermittent cycles, with a non-ejection pause being inserted between two successive ones of the intermittent cycles. The non-ejection pause has a time duration longer than a period of each ink ejecting action.
Tags:
Description:
Amusing 0%
Clever 0%
Complex 0%
Efficient 0%
Historic 0%
Important 0%
Innovative 0%
Interesting 0%
Practical 0%
Simple 0%
Number of Claims:
14
Comments:
no comments yet
Owner
Published
July 24, 2007
Application Number
10/820,079
Filed
April 6, 2004
US Classification
347/35   347/68
Int'l Classification
B41J   2/165   (20060101)   B41J   2/45   (20060101)  
Examiner
Assistant Examiner
Attorney/Law Firm
Priority Data
Apr 07, 2003 [JP] 2003-103160
USPTO Field of Search
347/30   347/35  
Related Patents
7510262 - Liquid ejection apparatus and method for flushing of liquid ejection apparatus - Owned by Seiko Epson Corporation (Tokyo,JP)

A liquid ejection apparatus includes a liquid ejection head and a controller (CPU, ASIC). The liquid ejection head is mounted on a carriage that reciprocates and ejects liquid toward a target. The controller controls a flushing mode of an in-range flushing and a flushing mode of an out-of-range flushing when the liquid ejection head ejects liquid as the carriage reciprocates. The flushing mode of the in-range flushing is performed in a reciprocation range of the carriage outside the target during ejection performed by the liquid ejection head. The flushing mode of the out-of-range flushing is performed outside the reciprocation range of the carriage reciprocates during ejection performed by the liquid ejection head.

Claims
Description
About| FAQs| Terms & Disclaimer| Link to Us| Contact Us