Ink jet recording apparatus having drop-registration adjusting system
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United States of America Patent
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-
Sep 12, 1995
Grant Date -
N/A
app pub date -
Nov 26, 1991
filing date -
Nov 29, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An ink jet recording apparatus wherein ink drops can be controlled individually to assure high quality printing and adjustment in registration of ink nozzles in a drum circumferential direction can be performed at a sufficiently high resolution. The ink jet recording apparatus includes a plurality of nozzles arranged such that drops of ink may impinge in an overlapping relationship at a location on a record medium supported on a rotary drum, and adjustment in registration of the nozzles in a drum circumferential direction is performed by a registration adjusting system by which such adjustment is performed using a registration adjusting clock signal having a frequency higher than a picture element recording signal. An optimum phase between disintegration of an ink jet and a recording pulse signal is determined in accordance with current values detected by a current detector connected to an electrically isolated conductive drop catcher.
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