Patent ID: 7600839
Filing Date: 2009-10-13
Classification: B41J

Abstract:
1. A recording head comprising: a plurality of recording elements; a block selection unit configured to divide the recording elements into blocks, each of which has a plurality of the recording elements, and to select a block according to a time-divisional driving signal used to perform time-divisional driving in units of the blocks; an input unit configured to input a pulse width regulating signal used to regulate a width of a driving pulse signal to be applied to each of the recording elements; a first common signal line configured to transfer a block driving signal output from the block selection unit to a recording element included in a block; a second common signal line configured to transfer the pulse width regulating signal input by the input unit to the plurality of recording elements; and a first delay circuit disposed on the first common signal line and a second delay circuit disposed on the second common signal line, wherein the first and second delay circuits are configured to delay the block driving signal and the pulse width regulating signal, respectively.