Patent ID: 8186788
Filing Date: 2012-05-29
Classification: B41J

Abstract:
1. A printhead including a driving unit configured to drive a plurality of heaters, and a register configured to receive data of a plurality of bits corresponding to the number of heaters, the printhead comprising: a latch configured to hold the data transferred from the register; and a generation unit configured to receive an enable signal comprising a first pulse waveform and a second pulse waveform, different from the first pulse waveform and formed after the first pulse waveform, generate a control signal for driving the heaters based on the enable signal and output the control signal to the driving unit, wherein the generation unit generates the control signal corresponding to the first pulse waveform in the case where a value of the data held by the latch is a predetermined value, and generates the control signal corresponding the second pulse waveform in the case where a value of the data held by the latch is different from the predetermined value.