Invention Grant
- Patent Title: Recoding element substrate, recording head equipped with the same, recording head cartridge, and recording apparatus
- Patent Title (中): 记录元件基板,配备有该记录头的记录头,记录头盒和记录装置
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Application No.: US12615102Application Date: 2009-11-09
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Publication No.: US08371668B2Publication Date: 2013-02-12
- Inventor: Ryo Kasai , Tatsuo Furukawa , Nobuyuki Hirayama , Tomoko Kudo
- Applicant: Ryo Kasai , Tatsuo Furukawa , Nobuyuki Hirayama , Tomoko Kudo
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon USA, Inc., I.P. Division
- Priority: JP2008-291108 20081113
- Main IPC: B41J29/38
- IPC: B41J29/38

Abstract:
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 includes 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.
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