IC chip, print apparatus, and heat generation warning method

Details IC chip, print apparatus, and heat generation warning method IC chip, print apparatus, and heat generation warning method

2007-11-06

2007-11-06

Nguyen, Lam Son (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S019000, C347S005000

Reexamination Certificate

active

10300909

ABSTRACT:
A printer (1) comprises a motor driver (34) for driving a carriage motor (20) and a paper feed motor (22). The motor driver (34) has a thermal shutdown circuit (43). If internal temperature T of the motor driver exceeds threshold value Ta, the thermal shutdown circuit shuts down the power of the motor driver. The motor driver has an internal temperature detection circuit (45). If the internal temperature T exceeds threshold value Tb (<Ta) before thermal shutdown processing operates, the internal temperature detection circuit outputs a HW signal. A CPU (29) executes heat generation stop processing based on the HW signal and controls the motor driver to stop the carriage motor and the paper feed motor for a predetermined time.

REFERENCES:
patent: 4705412 (1987-11-01), Matsumoto
patent: 6109716 (2000-08-01), Takahashi
patent: 0587352 (1994-03-01), None
patent: 6-225582 (1994-08-01), None
patent: 8-501199 (1998-02-01), None

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