Ribbon Drive Motor Wiring
The ribbon feed motor is a stepper motor with a 7.5° step angle. The motor leads go through the print head
cables to the logic board.
RESISTANCE MEASUREMENTS
Note: Allow the ribbon feed motor to cool before taking resistance measurements.
Table 37. Ribbon Feed Motor Resistance
Pins Resistance Temperature
1 and 3 24 Ohm ±10% 25°C (77°F)
2 and 4 24 Ohm ±10% 25°C (77°F)
Chapter 3. Circuit Diagrams
252
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