Printhead and printing apparatus using the same

Details Printhead and printing apparatus using the same Printhead and printing apparatus using the same

1996-03-14

1999-03-23

Nguyen, Matthew

Incremental printing of symbolic information

Ink jet

Controller

B41J 2938

Patent

active

058867139

ABSTRACT:
A printhead capable of informing a printer of existence or absence of ink so as to prevent an ink discharge failure without increasing manufacturing cost and causing increase in size, and a printer using the printhead capable of performing printing operation at high speed without any heavy processing load and causing increase in size are disclosed. This printhead comprises an ink sensor or a thermosensor including a circuit for processing an output signal from the sensor, and outputs a processed result of the output signal from the sensor to a control circuit of the printing apparatus. The control circuit of the printing apparatus controls so as to terminate a printing operation in accordance with a signal level of the inputted signal, and to start an ink suction recovery operation.

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