Recorders – Record receiver deforming
Patent
1983-08-08
1985-11-05
Goldberg, E. A.
Recorders
Record receiver deforming
G01D 1518
Patent
active
045517312
ABSTRACT:
An ink jet array printer has at least one row of printing guns. The guns deposit drops which are charged and deflected for printing on a printing surface moving relatively to the printer in line sections which together form a transverse printing line. The charging of the drops is effected by applying to the charge electrode of each gun, under the control of printing information, a periodic voltage waveform of sufficient period to span a raster of successively formed drops which are employed for printing the corresponding line section, the printing lines being successively formed at the frequency of the voltage waveform. Detector means are provided which sense values representative of drop placement errors of jets of test drops in the direction of relative movement of the printer and printing surface and control means responsive to the sensed values are operative to advance or retard the application to the charge electrode of each printing gun of the periodic voltage waveform thereby to correct for said drop placement errors.
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IBM Technical Disclosure Bulletin, vol. 21, No. 5, Oct. 1978: Ink Sensor Contamination Avoidance; J. T. Welch.
Bowen David R.
Keeling Michael R.
Lewis John D.
Paton Anthony D.
Cambridge Consultants Limited
Goldberg E. A.
Preston Gerald E.
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