Patent ID: 6502913
Filing Date: 2003-01-07
Classification: B41J

Abstract:
An ink-jet output control method used to control the printing of ink-jet output devices, wherein the ink-jet output device comprises a printhead, a printhead carriage for carrying the printhead and a step motor for driving the printhead carriage under a plurality of velocity models, among which, the printhead jets out a plurality of ink drops in each step of the step motor; the ink-jet output control method comprising the steps of:(a) setting a plurality of time pulse values of every two adjacent ink dots in each step of the step motor under different velocity models, and storing the time pulse values, which are non-identical, in a memory unit; (b) the printhead determining the time interval of ink-jet signal sending according to the time pulse values; and (c) spreading ink dots on a recording medium as the printhead receives an ink-jet control signal; wherein the pulse setting method that controls ink-jet outputting in said step (a) comprises: (a1) proceeding with equal time interval interpolation in each step of the step motor's rotation to produce a plurality of ink dots of unequal distances; (a2) observing the distances between the ink dots; (a3) adjusting the time pulse values of every two adjacent ink dots to obtain a plurality of non-identical time pulse values so that every two adjacent ink dots are approximately of the same distance; and (a4) recording and storing the time pulse values.