| 摘要 |
An ink jet printhead system having a plurality of ink jets (102, 314A, 314B) for use with a system for ink jet printing of messages in ink (140) said system having a terminal including a keyboard for entering me ssage data, a controller interconnected with the termina l for processing the message data received from the terminal and storing the messa ge data for the messages in a memory, said controller ha ving a serial output port for providing serial output data in a bit map format, s aid ink jet printhead comprising: a serial input port fo r connection to the serial output port (308A, 308B), driver circuits (310A, 310B) connect ed to the serial input and responsive to the serial outp ut data provided to the serial input port, a plurality of electrically actuated valv e means (312A, 312B) for each ink jet connected to the d river circuit, a transmitter (316) to transmit data to the next printhead, a regul ator (318) connected to the solenoids, a timer (320) whi ch enables ports, and a receiver (300) which receives data from the controller or previ ous printheads and includes the data line (302), the clo ck (304) and the latch (306).
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