Patent ID: 8851603
Filing Date: 2014-10-07
Classification: B41J

Abstract:
1. A driving device for driving a liquid discharge head, comprising: a latch signal generation circuit for generating a latch signal every Tc seconds, wherein Tc is an interval in which driving signals are transmitted; a delay time retention circuit for retaining data of delay times of less than Tc seconds, wherein the delay time is a period of time after the latch signal has been transmitted; a plurality of first latch circuits which are capable of retaining one-line pixel data, and latch the pixel data upon receiving the latch signal; a plurality of second latch circuits which are divided into a plurality of second latch circuit groups, each second latch circuit group latching pixel data retained in corresponding first latch circuits after the delay time for the second latch circuit group has expired; and a driving signal transmission circuit which retains data of driving signals having a length of Tc seconds or less, and transmits the driving signals on a basis of the pixel data retained in the second latch circuits of one of the second latch circuit groups to a plurality of driving sections, after the delay time for the second latch circuit group has expired.