Invention Grant
US08342646B2 Ink jet print head and printing method and apparatus using the same
有权
喷墨打印头和使用其的打印方法和装置
- Patent Title: Ink jet print head and printing method and apparatus using the same
- Patent Title (中): 喷墨打印头和使用其的打印方法和装置
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Application No.: US12635251Application Date: 2009-12-10
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Publication No.: US08342646B2Publication Date: 2013-01-01
- Inventor: Michinari Mizutani
- Applicant: Michinari Mizutani
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2008-321081 20081217
- Main IPC: B41J2/21
- IPC: B41J2/21
Abstract:
The present invention relates to measures for preventing end deviation that may occur during high-duty printing such as one-pass printing, and in particular, to measures for preventing density unevenness (white stripes) in the case of ink with a low lightness such as black ink. According to the present invention, the amount of black ink ejected through the corresponding ejection ports is set to be larger than that of color ink ejected through the corresponding ejection ports. Two black ink ejection chips each having at least one black ink ejection port row are arranged on the respective sides of a color ink ejection chip.
Public/Granted literature
- US20100149258A1 INK JET PRINT HEAD AND PRINTING METHOD AND APPARATUS USING THE SAME Public/Granted day:2010-06-17
Information query
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