Invention Grant
- Patent Title: Liquid supplying member, negative pressure unit, and liquid discharging apparatus
- Patent Title (中): 液体供给构件,负压单元和排液装置
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Application No.: US12762552Application Date: 2010-04-19
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Publication No.: US08443985B2Publication Date: 2013-05-21
- Inventor: Kazuhiro Aoyama , Manabu Sueoka , Yoshiyuki Kurita
- Applicant: Kazuhiro Aoyama , Manabu Sueoka , Yoshiyuki Kurita
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2009-113424 20090508
- Main IPC: B01D35/28
- IPC: B01D35/28 ; B41J2/015 ; B41J2/135 ; B01D35/00 ; B41J2/19 ; E03B7/07

Abstract:
A deposition of bubbles or foams to an inner wall of a liquid supplying member is prevented, thereby improving ejecting performance of the bubbles or foams. In the liquid supplying member which forms a flow path for supplying a liquid to a liquid discharging apparatus, the inner wall surface has a concave/convex shape in which a mountain portion and a valley portion are repeated at a predetermined spatial frequency. Assuming that an opening diameter of a filter provided for the liquid discharging apparatus is equal to R (μm), one period f (μm)of the spatial frequency lies within a range from R or more to √{square root over (2)}·R or less and a maximum height Ry (μm) of the mountain portion is equal to √{square root over (2)}·R/2 or more.
Public/Granted literature
- US20100282342A1 LIQUID SUPPLYING MEMBER, NEGATIVE PRESSURE UNIT, AND LIQUID DISCHARGING APPARATUS Public/Granted day:2010-11-11
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