Printronix L1024, Maintenance Manual

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7–10 Chapter 7 – Fuser Subsystem
7.2.1 Mechanical
Cleaner Felt. This cleans the fuser roller of toner that gets deposited on the roller instead of the paper. It
is impregnated with silicone which forms a film on the fuser roller that helps prevent toner from sticking.
Fuser Sensor Wheel. This sensor wheel has blades that break the light beam in the optical sensors on
the fuser sensor board. This helps set the fuser cam position.
Fuser Exit Guide. This protects users from touching heated parts and keeps the paper from wrinkling. It
also serves as a paper guide for paper that is exiting the printer. This guide is part of the Fuser Base
Assembly.
Fuser Roller. This Teflon-coated aluminum roller is heated and, in conjunction with the pressure roller,
comes in contact with the paper. The heat causes the toner to be fused onto the paper.
Fuser Roller Cam Shaft. This shaft has a cam on it that causes the Pressure Roller to move and press the
paper between the Fuser Roller and the Pressure Roller.
Fuser Frame Assembly. This assembly holds the Fuser Rollers and Thermistor. It is removable for easy
replacement.
Paper Peeler. This prevents paper from curling around the Fuser Roller by peeling the paper off of the
Fuser Roller.
Pressure Roller. This is a rubber roller that comes in contact with the Fuser Roller during fusing.
Static Brush. This brush removes the static charge from the paper as it exits the printer.
Engagement Lever Cam. This cam is located in the left center of the Fuser Roller Cam Shaft. It moves
the Engagement Lever, thus causing the Transfer Charger to move away from the paper when printing
stops.