AMT Datasouth Accel-7350 Service Manual page 87

Printhead Pin Configuration
The print head has 32 pin terminals. Approximately 14.7 ohms of resistance should be
measured between COMMON terminal and each pin terminal.
C: Common
T1, T2:Thermistor
When high temperature is detected in the print head, the printer automatically takes the following
actions:
Temperature > 115°C (Voltage at the test point TP 11 > 3.98V)
Stop printing, and then moves the carrier in full printing width.
Temperature > 110°C (Voltage at the test point TP 11 > 3.85V) Reverse logic seek
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