Printronix L1024, Maintenance Manual

Page: 115 / 372

7–19 Chapter 7 – Fuser Subsystem
10. Remove 1 Screw from each side of the Roller Frame, then remove the Fuser Pressure Roller
and its Frame by disengaging the Pivot on each side of the Heat Roller Frame. See Figure
7–2 .
11. Lift the Fuser Pressure Roller out of its Frame.
NOTE: Do the next Step (removal of the Fuser Pressure Roller Shaft from the
Roller) only if absolutely necessary.
12. Remove 1 E-ring from the each end of the Pressure Roller Shaft, then slide the Shaft from
the Roller. This will allow you to remove the Paper Peeler from the Roller, and Ball Bearing
from each end of the Roller.
See Figure 7–2.
NOTE: The Shaft has a very tight fit in the Ball Bearings and should be removed
only if the Bearings are seized.
13. Remove the Thermistor by removing 1 Screw. See Figure 7–2.
14. Disconnect both Lamp Leads from the Thermal Breaker, then the Thermal Breaker and
Bracket can be removed from the Fuser Roller Frame by removing 1 Screw. The Thermal
Breaker can be removed from its Mounting Bracket by removing 2 Screws.
See Figure 7–2
and Detail 7–2.
NOTE: If the Thermal Breaker Mounting Bracket is removed from the Heat Roller
Frame, then the height of the Thermal Breaker surface from the Heat
Roller must be set properly, as described in the “Adjustment” section that
begins on page 7–21.
If the Thermal Breaker Mounting Bracket is
not removed from the Heat
Roller frame, but the leads from the lamp to the Thermal Breaker are
disconnected and reconnected, then the height of the Thermal Breaker
surface over the roller must be measured and adjusted if needed.
Detail 7–2. Thermal Breaker and Mounting Bracket