EP 0354706 A3 19900801 - INK FLOW CONTROL SYSTEM AND METHOD FOR AN INK JET PRINTER
Title (en)
INK FLOW CONTROL SYSTEM AND METHOD FOR AN INK JET PRINTER
Publication
Application
Priority
US 23064488 A 19880810
Abstract (en)
[origin: EP0354706A2] A piezoelectric pump 22 or equivalent transducer is mounted on or within an ink jet printhead and is used to modulate the frequency or amplitude, or both, of oscillations of a liquid meniscus at a liquid ejection orifice 17 of a nozzle plate 16. The liquid meniscus at the orifice 17 has a natural resonant frequency and amplitude with respect to its equilibrium position 19, and the above modulation is performed in a controlled timed relation with respect to the phase of the natural oscillations of the meniscus at the liquid ejection orifice 17.
IPC 1-7
IPC 8 full level
B41J 2/05 (2006.01); B41J 2/02 (2006.01); B41J 2/055 (2006.01); B41J 2/14 (2006.01)
CPC (source: EP)
B41J 2/055 (2013.01); B41J 2/1404 (2013.01); B41J 2/14201 (2013.01); B41J 2002/14387 (2013.01)
Citation (search report)
- [X] US 4296421 A 19811020 - HARA TOSHITAMI, et al
- [X] US 4580149 A 19860401 - DOMOTO GERALD A [US], et al
- [X] US 4672398 A 19870609 - KUWABARA TADASHI [JP], et al
- [X] US 4646110 A 19870224 - IKEDA MASAMI [JP], et al
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0354706 A2 19900214; EP 0354706 A3 19900801; CA 1319561 C 19930629; JP H0288246 A 19900328
DOCDB simple family (application)
EP 89307791 A 19890801; CA 595739 A 19890405; JP 20778389 A 19890810