INK JET PRINTER AND METHOD FOR DRIVING RECORDING HEAD FOR INK JET PRINTER

PROBLEM TO BE SOLVED: To enable the appropriate control of the flying velocity of an ejected ink droplet. SOLUTION: The ink jet printer is equipped with a nozzle opening through which an ink droplet is ejected, an ink chamber communicating with the nozzle opening, an ink supply passage for supplying...

Full description

Saved in:
Bibliographic Details
Main Authors SUZUKI KENJI, IKEMOTO YUICHIRO, HORII SHINICHI, TOKUNAGA HIROSHI, YAKURA YUJI, TANIGAWA TORU
Format Patent
LanguageEnglish
Published 16.03.1999
Edition6
Subjects
CORRECTION OF TYPOGRAPHICAL ERRORS
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To enable the appropriate control of the flying velocity of an ejected ink droplet. SOLUTION: The ink jet printer is equipped with a nozzle opening through which an ink droplet is ejected, an ink chamber communicating with the nozzle opening, an ink supply passage for supplying an ink to the ink chamber and a piezoelectric element for expending/shrinking the ink chamber in conformity with an applied voltage. When performing a series of discharge steps including a first step (A-B) to expand the ink chamber and draw a meniscus in the nozzle opening into an ink chamber direction, a second step (B-C) to fill the ink chamber with the ink and move the meniscus into a nozzle opening direction and a third step (C-D) to contract the ink chamber to eject the ink droplet, a velocity at which the periodic position of the meniscus changes at the point of time when the third step starts, is appropriately selected, and thereby, the velocity at which the ink droplet to be ejected in the third steps airborne, is controlled.
Bibliography:Application Number: JP19980185874