Patent ID: 7513588
Filing Date: 2009-04-07
Classification: B41J

Abstract:
1. A power supplying apparatus for a print head comprised in a thermal inikjet printer, said print head comprising a plurality of nozzles, the thermal inikjet printer being capable of providing a plurality of printing modes, each printing mode being corresponding to a respective number of nozzles comprised in the print head, said power supplying apparatus comprising: a look-up table for storing plural sets of control signals, each set of the control signals corresponding to one of the printing modes and information about the delay time of the nozzles receiving the control signals; a selecting module for receiving a command, said command representing that a user selects one printing mode among the plurality of printing modes as a final printing mode, the selecting module selecting one set of control signals among the plural sets of control signals stored in the look-up table as a set of final control signals according to the command, the set of final control signals being corresponding to the final printing mode; and an adjustable voltage supply for supplying at least one voltage to the plurality of nozzles based on the set of final control signals selected by the selecting module.