Ink-jet recorder having a driving circuit for driving heat-gener

Details Ink-jet recorder having a driving circuit for driving heat-gener Ink-jet recorder having a driving circuit for driving heat-gener

1997-03-18

1999-08-03

Hartary, Joseph

Incremental printing of symbolic information

Ink jet

Controller

347 60, B41J 205

Patent

active

059331615

ABSTRACT:
An ink-jet recorder is disclosed which has an arrangement of a plurality of heat-generating elements, drivers for driving the heat-generating elements, and a drive circuit for controlling the drivers according to image data, wherein the drive circuit includes; a split-block drive circuit that divides the plurality of heat-generating elements into a plurality of blocks, and drives the heat-generating elements on a block-by-block basis in a time-sharing manner, and a data retaining circuit for retaining print data; and the split-block drive circuit that; drives each of the blocks of the heat-generating elements at printing operations, using a pre-pulse during which ink is not squirted and a main pulse during which ink is squirted; and drives another group of heat-generating elements differing from the currently-driven group of heat-generating elements, during intervals between the pre-pulse and the main pulse.

REFERENCES:
patent: 5172134 (1992-12-01), Kishida

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