Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2008-07-01
2008-07-01
Feggins, K. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S077000
Reexamination Certificate
active
10571025
ABSTRACT:
A method of operating a continuous ink jet printer apparatus, the method comprising the steps of: applying a first voltage pulse to an electrode in order to modify the direction of an ink stream; applying a second voltage pulse to the electrode for a pre-determined period of time; measuring the charge carried on the ink stream; and modifying the operation of the printer in response to the charge measured.
REFERENCES:
patent: 4897667 (1990-01-01), Uchiyama et al.
patent: 6309058 (2001-10-01), Lecheheb et al.
Horsnell David Andrew
Lecheheb Ammar
McAndrews Held & Malloy Ltd.
Videojet Technologies Inc.
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