Two section charging electrodes for binary ink drop printers

Details Two section charging electrodes for binary ink drop printers Two section charging electrodes for binary ink drop printers

1980-10-03

1982-03-02

Hartary, Joseph W.

Recorders

Record receiver deforming

G01D 1518

Patent

active

043181112

ABSTRACT:
A binary ink drop printer is disclosed of the type wherein continuously generated drops are electrostatically deflected to intersect either a target or a gutter. The printer includes M.times.N number of nozzles for generating drops and a like number of charging electrodes for charging drops to either a print level for flight to the target or a gutter level for flight to a gutter. A M.times.N matrix is used to couple voltages to the charging electrodes and thereby greatly reduce the number of electrical connections to a substrate carrying the M.times.N number of charging electrodes. Each charging electrode includes two sections. Application of a print voltage to both sections causes the generation of a print drop that goes to the target and application of a gutter voltage to either or both sections of the charging electrode causes the generation of a gutter drop that is collected in the gutter. One two section electrode is made using at least two partial cylinders. Another two section electrode is made by coupling a single electrode to a voltage divider network.

REFERENCES:
patent: 3373437 (1968-03-01), Sweet
patent: 3701998 (1972-10-01), Mathis
patent: 3975741 (1976-08-01), Solyst
patent: 3984843 (1976-10-01), Kuhn
patent: 4035812 (1977-07-01), Van Breemen et al.
patent: 4074278 (1978-02-01), Robertson
patent: 4274100 (1981-06-01), Pond

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