Inkjet printing apparatus, with plural printheads and...

Details Inkjet printing apparatus, with plural printheads and... Inkjet printing apparatus, with plural printheads and...

2005-06-14

2005-06-14

Pham, Hai (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S009000, C347S005000

Reexamination Certificate

active

06905185

ABSTRACT:
A shift register stores printing data in synchronism with a transfer clock. A latch circuit temporarily latches data having a predetermined number of bits to the shift register in response to a data latch signal. A shift register stores block data in synchronism with a transfer clock. A latch circuit temporarily latches data having the predetermined number of bits to the shift register in response to a block data latch signal. Each AND gate receives a block selection signal from a printing block selection unit, a printing data selection signal corresponding to a printing dot from a printing data supply unit, and an energization time selection signal. An output from the AND gate turns on/off a switching transistor. As a result, a heater is heated to discharge ink droplets.

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