Invention Grant
- Patent Title: Liquid discharging head, method of manufacturing liquid discharging head, and image forming apparatus
- Patent Title (中): 液体排放头，液体排出头的制造方法以及成像装置
-
Application No.: US12213457Application Date: 2008-06-19
-
Publication No.: US08087761B2Publication Date: 2012-01-03
- Inventor: Takahiro Yamada , Tomohiko Koda , Hitoshi Kida
- Applicant: Takahiro Yamada , Tomohiko Koda , Hitoshi Kida
- Applicant Address: JP Tokyo
- Assignee: Ricoh Printing Systems, Ltd.
- Current Assignee: Ricoh Printing Systems, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: McGinn IP Law Group, PLLC
- Priority: JPP2007-162704 20070620
- Main IPC: B41J2/045
- IPC: B41J2/045
Abstract:
A liquid discharging head includes: a plurality of nozzles that discharge liquid droplets; and a plurality of piezoelectric elements that generate pressure for discharging liquid droplets from the respective nozzles, wherein the piezoelectric elements are performed with repolarization process to set non-uniformity of the droplet discharging characteristics of the nozzles to be in a predetermined range by combining adjustment of a polarization sensitivity and adjustment of a polarization voltage for each of the piezoelectric elements.
Public/Granted literature
- US20080316280A1 Liquid discharging head, method of manufacturing liquid discharging head, and image forming apparatus Public/Granted day:2008-12-25
Information query
IPC分类:
