Ink jet recording apparatus with an improved ink sensor

Details Ink jet recording apparatus with an improved ink sensor Ink jet recording apparatus with an improved ink sensor

1976-09-10

1978-10-17

Miller, Jr., George H.

Recorders

Record receiver deforming

G01D 1518

Patent

active

041212231

ABSTRACT:
Ink jet recording apparatus has an ink sensor which detects charges on charged ink droplets emitted from a nozzle of the ink jet recording apparatus and emits electric signals for controlling the above apparatus. The ink sensor comprises a pair of induction plates disposed with a separation distance, and a pair of grounded plates each of which is mounted on each of the induction plates through an electric insulator. The sensor is disposed such that flying paths of the ink particles to be detected are between the pair of induction plates. In the induction plates, current is induced at every time when each of the charged ink droplets pass between the pair of induction plates thereby providing electric signals for controlling.

REFERENCES:
patent: 3836912 (1974-09-01), Ghougasian et al.
patent: 3852768 (1974-12-01), Carmichael et al.
patent: 3886564 (1975-05-01), Naylor et al.
patent: 3953860 (1976-04-01), Fujimoto et al.
patent: 3977010 (1976-08-01), Erickson et al.

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