Patent ID: 8371668
Filing Date: 2013-02-12
Classification: B41J

Abstract:
1. A recording element substrate which is provided with a first recording element group and a second recording element group, each group including a plurality of recording elements, the recording element substrate comprising: a first terminal configured to input a data signal; a second terminal configured to input a latch signal; a shift register configured to receive the data signal input from the first terminal; a first latch circuit configured to latch data stored in the shift register based on the latch signal of a first pulse width input from the second terminal; a second latch circuit configured to latch the data stored in the shift register based on the latch signal of a second pulse width which is shorter than the first pulse width of the latch signal input from the second terminal; a first driving circuit configured to control driving of the recording elements included in the first recording element group based on a signal output from the first latch circuit; and a second driving circuit configured to control driving of the recording elements included in the second recording element group based on a signal output from the second latch circuit.