Ink jet recording apparatus having drop-registration adjusting s

Details Ink jet recording apparatus having drop-registration adjusting s Ink jet recording apparatus having drop-registration adjusting s

1991-11-26

1995-09-12

Royer, William J.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 74, B41J 212

Patent

active

054501113

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.

REFERENCES:
patent: 3560641 (1971-02-01), Taylor
patent: 3987492 (1976-10-01), Kraus et al.
patent: 4146901 (1979-03-01), Fowler
patent: 4626867 (1986-12-01), Furukawa et al.
patent: 4839665 (1989-06-01), Hertz
patent: 4851860 (1989-07-01), Mutoh
patent: 4878063 (1989-10-01), Katerberg
patent: 4956648 (1990-09-01), Hongo

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