Optical sensing of ink jet printing

Details Optical sensing of ink jet printing Optical sensing of ink jet printing

1980-10-16

1982-05-04

Hix, L. T.

Recorders

Record receiver deforming

346140R, G01D 1800

Patent

active

043285040

ABSTRACT:
Printing of characters in non-impact manner by means of ink droplets which are driven through the nozzle of an inking device is optically sensed and the existence, the position, the size and the condition of each ink spot or mark are determined. The desired printing signals are generated and input in a signal shaping circuit and these signals are compared with the actual signals from the optical sensor and the ink droplet drive means is changed or altered to correct the printing.

REFERENCES:
patent: 4060813 (1977-11-01), Yamada et al.
patent: 4063253 (1977-12-01), Ito et al.
patent: 4067019 (1978-01-01), Fleischer et al.
patent: 4136345 (1979-01-01), Neville et al.
patent: 4255754 (1981-03-01), Crean et al.

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