Invention Grant
- Patent Title: Liquid discharge head and image forming apparatus
- Patent Title (中): 液体排出头和成像装置
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Application No.: US14020951Application Date: 2013-09-09
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Publication No.: US09120319B2Publication Date: 2015-09-01
- Inventor: Ryohta Yoneta
- Applicant: Ryohta Yoneta
- Applicant Address: JP Tokyo
- Assignee: RICOH COMPANY, LTD.
- Current Assignee: RICOH COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2012-201353 20120913; JP2013-118410 20130605
- Main IPC: B41J2/175
- IPC: B41J2/175 ; B41J2/14

Abstract:
A liquid discharge head includes nozzles configured to discharge liquid droplets; individual flow paths to which the nozzles are connected; a liquid injection unit connected to the individual flow paths; a common liquid room configured to supply liquid to the individual flow paths; and a filter unit configured to filter the liquid. The filter unit is provided between the common liquid room and the liquid injection unit. The filter unit includes a reinforcement area for dividing the filter unit into filter areas each corresponding to two or more of the individual flow paths. A partition wall is provided corresponding to the reinforcement area of the filter unit, on the liquid injection unit side. A width in a nozzle arrangement direction of the partition wall is wider than a width in the nozzle arrangement direction of the reinforcement area.
Public/Granted literature
- US20140071215A1 LIQUID DISCHARGE HEAD AND IMAGE FORMING APPARATUS Public/Granted day:2014-03-13
Information query
IPC分类: