Inkjet recording system and recording apparatus

Details Inkjet recording system and recording apparatus Inkjet recording system and recording apparatus

2007-10-30

2010-10-12

Peng, Charlie (Department: 2883)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S009000, C347S014000, C347S046000, C347S054000, C347S056000, C347S062000, C347S063000, C347S064000, C347S065000, C347S069000, C347S070000, C347S071000, C347S072000, C347S100000, C310S328000

Reexamination Certificate

active

07810913

ABSTRACT:
An inkjet recording system includes an inkjet recording head in which a part of wall face of a pressure chamber in which a nozzle is provided is formed of a piezoelectric element. Centerline average roughness Ra of the piezoelectric element is 0.05 to 2 μm, viscosity of the ink is 2.0 to 10.0 mPa·s, and the following expression (1) is satisfied;r⁢⁢γ⁢⁢cos⁢⁢θ2⁢⁢η≥0.07(1)wherein r represents centerline average roughness (μm) of surface of piezoelectric element forming wall face of the pressure chamber, γ represents surface tension (mN/m) of ink, η represents viscosity of ink (mPa·s), and θ represents contact angle (degree) of ink with respect to piezoelectric element.

REFERENCES:
patent: 5854307 (1998-12-01), Kimura et al.
patent: 3454514 (2003-07-01), None
patent: 2004-114308 (2004-04-01), None

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