Ink jet droplet frequency drive control system

Details Ink jet droplet frequency drive control system Ink jet droplet frequency drive control system

1990-05-16

1993-03-23

Fuller, Benjamin R.

Recorders

Record receiver deforming

G01D 1800

Patent

active

051968606

ABSTRACT:
A drive control system automatically maintains nozzle drive voltage within a proper range. The control system monitors the state of the "intermediate satellites" positioned between ink drops used for printing. When these satellites are neither forwared nor backward merging, a first cardinal point designated C(L) is identified. A second cardinal point, C(H), is determined when the drop breakoff point stops decreasing, relative to said nozzle, with increasing nozzle drive voltage. From the two cardinal values, a desired operating range for a particular ink can be computed and the control system automatically set. The computed value is essentially independent of temperature.

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patent: 4688047 (1987-08-01), Braun et al.
patent: 4727379 (1988-02-01), Sourlis et al.
patent: 4878064 (1989-10-01), Katerberg et al.

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