In the drop on demand print head with time method and the device which revise the misalignment of the nozzle which fluctuates

摘要

(57) Abstract In order it adjoins in the gap of the segment which overlaps it originates to decrease the arch fact which can be recognized, method and the device which revise vis-a-vis the variable repetition between the segment of the page width print head system are offered. With one method, adopting the sum total expedient which totals with the present dither value and the repetition signal from the dither matrix, it offers output value, and compares output value with the input continuous tone data, and the comparator it offers the dither value which it is output is revised in order to control the nozzle inside the repetition territory of the segment. With another method, the dither matrix which is revised making use of the software program is offered. Detection expedient offers the measurement value multiplicity of the segment, generates the repetition signal. To detect the temperature or the relative position gap of the segment it is possible detection expedient. It decides multiplicity according to temperature variation, can remember in ROM.