Ink jet recorder and charge ring plate therefor with reduced dep

Details Ink jet recorder and charge ring plate therefor with reduced dep Ink jet recorder and charge ring plate therefor with reduced dep

1976-07-12

1977-07-12

Miller, Jr., George H.

Recorders

Record receiver deforming

G01D 1518

Patent

active

040358127

ABSTRACT:
An ink jet recorder has a means for forming streams of ink drops and a means for selectively charging the drops in the streams as they are formed. The drops pass through charge ring orifices which are lined with charge rings. Charging potentials are selectively applied to the charge rings to induce selectively charges in the drops as they are formed. In order to prevent a large deplating current from flowing between the charge rings in the event of an inadvertent short, a means for limiting current flow is provided. Current may be limited by a charge ring formed from a bulk resistive material such as an epoxy filled with conductive particles. Alternatively, current may be limited by discrete resistors positioned adjacent the charge rings and through which the charging potential is applied.

REFERENCES:
patent: 3921916 (1975-11-01), Bassous
patent: 3949410 (1976-04-01), Bassous et al.
patent: 3975741 (1976-08-01), Solyst
patent: 3984843 (1976-10-01), Kuhn
Pedersen, K. A., Ink Jet Charge Plate, IBM Technical Disc. Bull., vol. 19, No. 2, July 1976, p. 673.

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