Printhead, printing apparatus and printing method using printhead
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United States of America Patent
Stats
-
Mar 2, 1999
Grant Date -
N/A
app pub date -
Jun 30, 1995
filing date -
Jun 30, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A downsized, low-cost, high-density printhead, a printing apparatus and a printing method using the printhead can be achieved. If the number of electrothermal transducers is N, a shift register is capable of storing print information corresponding to N/8 electrothermal transducers. First, print information corresponding to the capacity of the shift register is transferred to the printhead. Then, the shifting function of the shift register is stopped to hold the print information. A 3-bit selection signal is inputted from an input terminal as the print information information. The selection signal is sent to a time-divisional logical circuit, then N/8 electrothermal transducers are selected, and a printing operation based on the input data is performed. This operation is repeated eight times, to complete printing by all the N electrothermal transducers.
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