Ink jet printer

Details Ink jet printer Ink jet printer

2007-05-15

2007-05-15

Meier, Stephen (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

11006667

ABSTRACT:
An ink jet printer has: a vibration detection section to receive ink jetted from the nozzles and output a detection signal having an amplitude corresponding to a vibration generated when the ink lands; a sampling section to sample an amplitude value of the detection signal by a predetermined sampling clock signal; a storing section to store an amplitude value data of the detection signal sampled by the sampling section; a judging section to judge a jet failure of the nozzles based on the amplitude value data of the detection signal in the storing section; and a control section to control to jet the ink continuously a plurality of times with a jet drive cycle which is set by multiplying a standard drive waveform time of an ink jet signal from the nozzles by an odd number not less than five when detecting a jet failure of the nozzles.

REFERENCES:
patent: 4835435 (1989-05-01), Yeung et al.
patent: 6527358 (2003-03-01), Kuriyama et al.
patent: 02239943 (1990-09-01), None

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