Printhead, printing apparatus using the same, and printhead control method
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United States of America Patent
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-
Oct 22, 2002
Grant Date -
N/A
app pub date -
Aug 17, 2000
filing date -
Aug 24, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed is a printhead capable of outputting information about the state of the printhead at a proper speed while increasing the printing data input speed. In a printing data transfer/discharge sequence of supplying clock signals CLK having a first frequency and a second frequency lower than the first frequency from a printing apparatus main body, and inputting printing data DATA which influences an increase in printing speed, printing data is transferred in synchronism with a first clock signal. In a data read sequence of outputting information MEM_OUT and TMP_OUT about the state of the printhead after the printing data input period, information is output in synchronism with a second clock signal.
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