Deflection compensated ink ejection printing apparatus

Details Deflection compensated ink ejection printing apparatus Deflection compensated ink ejection printing apparatus

1979-12-26

1981-07-28

Miller, Jr., George H.

Recorders

Record receiver deforming

346140R, G01D 1518

Patent

active

042813328

ABSTRACT:
Prior to printing, ink drops are ejected from an ink ejection head or nozzle (28) and an amount of deflection is sweepingly varied until the ink drops hit a target (57), thereby providing a reference which compensates for variations in an amount of charge of the ink drops, a deflection voltage and an ink drop velocity. The ink is caused to fall in drops from a container (48) having a predetermined volume and the number of drops per unit time, corresponding to the ink viscosity, is counted. The temperature of the ink is raised when the number of drops is below a predetermined number and vice-versa.

REFERENCES:
patent: 3465351 (1969-09-01), Keur et al.
patent: 3898673 (1975-08-01), Haskell
patent: 4007684 (1977-02-01), Takano et al.
patent: 4067019 (1978-01-01), Fleischer et al.
patent: 4121222 (1978-10-01), Diebold et al.
patent: 4128841 (1978-12-01), Brown et al.

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