Apparatus and method of protecting inkjet printer head
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United States of America Patent
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May 21, 2013
Grant Date -
Jul 8, 2010
app pub date -
Sep 28, 2009
filing date -
Jan 6, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus and method to protect an inkjet printer head including a head controller of a printer body and a head chip to drive a heater by using a serial interface, the apparatus including: a clock monitoring unit to monitor a serial clock signal that is used as a reference clock signal supplied to the head chip to control the head chip, and if the serial clock signal is abnormal, to output a signal indicating that the serial clock signal is abnormal; and a heater driving limiting unit to limit energy applied to the heater by using the signal, which is output by the clock monitoring unit, to indicate that the serial clock signal is abnormal.
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