PRINTING APPARATUS AND ITS CLEANING MECHANISM

Title:

PRINTING APPARATUS AND ITS CLEANING MECHANISM

Document Type and Number:

WIPO Patent Application WO/2007/058139

Kind Code:

A1

Abstract:

Disclosed are a printing apparatus and its cleaning mechanism. A capping unit (302) includes a plurality of caps (301). The cap (301a) for individual cleaning among these caps (301) is connected to a pump (310) for sucking an ink from an ink jet head (101) through a tube (314) with a second valve (312). The other caps are connected to the pump (310) through a tube (313) with a first valve (311). In a steady time, the first valve (311) and the second valve (312) are opened to suck the ink from all ink jet heads (101). If defective discharge occurs, only the second valve (312) is opened to suck the ink from only the ink jet head (101) in which the defective discharge occurs.

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Inventors:

SUMIDA RYUHEI (JP)

Application Number:

PCT/JP2006/322544

Publication Date:

May 24, 2007

Filing Date:

November 13, 2006

Export Citation:

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Assignee:

DAINIPPON SCREEN MFG (JP)
SUMIDA RYUHEI (JP)

International Classes:

B41J2/18; B41J2/165; B41J2/175; B41J2/185

Domestic Patent References:

WO2003089246A1

2003-10-30

Foreign References:

JPH09187953A	1997-07-22
JP2004195916A	2004-07-15
JP2004009358A	2004-01-15

Other References: