Wednesday, December 21, 2011

Lexmark T63X -- Fuser Resistances & Pin Assignments

Resistance Values

Lamp Circuit: Approx. 1.5 ohms.

Thermistor: Approx 465 kohms at room temperature.

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Cable Connection J1

1. NARMEDIA*[1]

2. Thermistor Return -- J6-1

3. Thermistor -- J6-2

4. GND[2]

5. THUMP -- J4-2

6. +5V

7. THUMPRET -- J4-1

8. EXIT SNS*[1]

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Notes:

[1] Paper present = LO; Paper not present = HI.

[2] Lexmark's practice is to tie DC (logic) ground to chassis ground. You can always use chassis ground for a ground reference on Lexmark's machines.

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