RESISTANCE MEASUREMENTS
Note: Allow the printhead to cool before taking resistance measurements.
Table 32. 9-Wire Printhead Resistance Measurements
Part Resistance Temperature
Print Wire Coil 5 Ohm ±10% 20°C (68°F)
Thermal Sensor 1000 Ohm ±6% 25°C (77°F)
Example: To measure the resistance of the coil for print wire 1, measure between pins 21 and 22 of the 26-pin
cable connector.
Pin 1
Pin 1
Ribbon Lift
Connector
26 Pin
Connector
Not
Used
9 Wire Printhead
Figure 26. 9-Wire Printhead Wiring (Model 002)
Chapter 3. Circuit Diagrams 245
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