Title:
METHOD FOR DRIVING PIEZOELECTRIC INK JET HEAD AND INK JET PRINTER
Document Type and Number:
WIPO Patent Application WO/2007/063671
Kind Code:
A1
Abstract:
A method for driving a piezoelectric ink jet head in which print speed of a line
type ink jet printer can be raised furthermore without deteriorating the image
quality of a forming image and without complicating a drive circuit. A line type
ink jet printer employing such driving method is also provided. In the driving
method, an interval for applying drive voltage pulses to the piezoelectric deformation
region of a piezoelectric actuator is set such that a plurality of ink drops ejected
from a nozzle in order to form one dot are not united during flight before arriving
at the surface of a sheet (18) in the way of conveyance, and all ink drops arrive
at points (20, 21) in an imaginary circle (19) of one dot formed on the surface of
the sheet (18). In order to drive the piezoelectric deformation region by such
driving method, the ink jet printer is provided with a control unit for controlling
a drive voltage outputted from the drive circuit and applied to the piezoelectric
deformation region.
Inventors:
MATSUMOTO AYUMU (JP)
IWAO NAOTO (JP)
IWAO NAOTO (JP)
Application Number:
PCT/JP2006/321781
Publication Date:
June 07, 2007
Filing Date:
October 31, 2006
Export Citation:
Assignee:
KYOCERA CORP (JP)
BROTHER IND LTD (JP)
MATSUMOTO AYUMU (JP)
IWAO NAOTO (JP)
BROTHER IND LTD (JP)
MATSUMOTO AYUMU (JP)
IWAO NAOTO (JP)
International Classes:
B41J2/045; B41J2/01; B41J2/055; B41J2/205
Foreign References:
| JP2005271479A | 2005-10-06 | |||
| JPH10166558A | 1998-06-23 |
Attorney, Agent or Firm:
INAOKA, Kosaku et al. (Sun Mullion NBF Tower 21st Floor, 6-12, Minamihommachi 2-chome, Chuo-ku, Osaka-sh, Osaka 54, JP)
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