Ink catcher and drop charge sensing device

Recorders – Record receiver deforming

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346140R, G01D 1800

Patent

active

046368094

ABSTRACT:
The invention is an ink drop catcher for use in a drop marking device such as an ink jet printer. The catcher receives drops which are not to be deposited on the recording medium. The catcher includes a convoluted passage through which the drops pass to return to the ink supply. An electrode disposed along the convoluted passage senses the current flow created by the accumulation of the charges from a series of test drops. This current flow is used by phasing circuitry to insure that the drops are correctly charged at the time they are formed.

REFERENCES:
patent: 3465351 (1969-09-01), Kevr et al.
patent: 4153902 (1979-05-01), Kanayama
patent: 4418352 (1983-11-01), Horike et al.
A.B. Dick Tech Manual, 1977, "Videojet Coder/Printer Series 9300", pp. 6-6, 6-7.

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