Title:
INKJET PRINTER
Document Type and Number:
Japanese Patent JP2015044386
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an inkjet printer that can reduce deterioration in printing quality of a color mixed gray image.SOLUTION: An inkjet printer 1 includes inkjet heads 21A and 21B aligned along a paper conveyance direction, and respectively having a plurality of head modules aligned along a main scanning direction. A head module has two nozzle rows in which a plurality of ink-discharging nozzles are arranged at a predetermined pitch along the main scanning direction. Each head module of the inkjet head 21A has a nozzle row for discharging black ink and a nozzle row for discharging cyan ink, and in these nozzle rows, a position of each nozzle in the main scanning direction is arranged by being mutually shifted by a half pitch. Each head module of the inkjet head 21B has a nozzle row for discharging magenta ink and a nozzle row for discharging yellow ink.
Inventors:
SHIMOMURA KENJI
Application Number:
JP2013178056A
Publication Date:
March 12, 2015
Filing Date:
August 29, 2013
Export Citation:
Assignee:
RISO KAGAKU CORP
International Classes:
B41J2/21; B41J2/01
Domestic Patent References:
| JP2010260319A | 2010-11-18 | |||
| JP2011056880A | 2011-03-24 | |||
| JP2010069640A | 2010-04-02 | |||
| JPH05293974A | 1993-11-09 | |||
| JPH1058715A | 1998-03-03 | |||
| JP2003062986A | 2003-03-05 | |||
| JPH0725014A | 1995-01-27 |
Foreign References:
| US20090051734A1 | 2009-02-26 |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Toshikazu Takahashi
Masakazu Ito
Toshikazu Takahashi
Masakazu Ito
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