Incremental printing of symbolic information – Ink jet – Controller
Patent
1995-08-30
2000-05-02
Le, N.
Incremental printing of symbolic information
Ink jet
Controller
347 13, 347 57, B41J 2938, B41J 2145, B41J 205
Patent
active
060563850
ABSTRACT:
An ink jet recording head has an energy generating device line constituted by electrically connecting N (N>1) energy generating devices in series. The energy generating devices are disposed to correspond to a plurality of discharge ports for discharging ink and generate discharging energy. The energy generating device line is operated by using substantially N+1 electrodes. The method of operating an ink-jet recording head comprises the steps of: successively selecting the energy generating devices of the energy generating device line; applying voltages of different levels to the two terminals of the selected energy generating device having received an image signal instructing the selected energy generating device to discharge the ink; and applying voltages of the same level to the two ends of the energy generating device which corresponds to the discharge ports which are not to discharge the ink.
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Canon Kabushiki Kaisha
Le N.
Nguyen Thinh
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