Lexmark T64X -- Fuser Teardown/Overhaul Checklist

This document is a condensation of a procedure. It can serve as a checklist once one is familiar with all the informaton in the procedure.

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Proceed as follows:

1) Left Side Lamp Terminal Cover

2) Left Side Lamp Terminal

3) Lamp

4) Thermistor Cable

5) AC Spade Connector at the upper right of the top cover

6) Top Cover

7) Stripper Bar Torsion Springs

8) Exit Roller

9) Idler Gear

10) Pressure Roller Springs
- Unhook them at the front.

11) Ring Gear

12) Left Side Bearing

13) Hot Roller w/Bushings

14) Right Side Bearing

15) Input Ramp

16) Stripper Bar

17) Pressure Roller w/Bearings and Bearing Holders

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At this point, you can proceed in either of two ways.

a) Carry on with the full procedure for a thorough overhaul.

b) Abbreviate the procedure for a 'good-enough' overhaul.
- Scrape the right side lamp contact.
- Blow out the lamp contact and the sensors w/compressed air.
- Inspect the two sensors.
- Apply a couple of drops of light mineral oil to the pressure roller arms' pivot points.
- Reassemble w/new parts A/R.

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18) Output Ramp

19) Pressure Roller Springs

20) Right Side Pressure Roller Arm

21) Left Side Pressure Roller Arm and Link

22) Right Side Lamp Contact Assembly

23) PCA

24) Solenoid

26) Reassemble w/new parts A/R

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Frequently Replaced Parts

Assembly, 115V Fuser, T64X: P/N 40X2592

Bearing, Hot Roll [6003Z: 17mm bore x 35mm O.D. x 10mm thick]: P/N 99A0143

Bearing, Pressure Roller [R3Z: 0.1875" bore x 0.500" O.D. x 0.196" thick]: P/N 99A1621

Pressure Roller, 28mm dia: P/N LPR-T640

Coated (Hot) Roller, 30mm dia: P/N UFR-T640

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