Platen Roller - Intermec EasyCoder PC41 Service Manual

Chapter 5—Base Frame

5.3 Platen Roller

Description
Replacement
Plastic bushing
with brass insert
36
The platen roller feeds the media and provides counter-pressure for the
printhead. It is coated with silicon rubber and driven by the stepper motor
via a train of gears. The media feed is measured in dots, just like the print
width (1 dots = 0,125 mm/4.9 mils).
The platen roller is subject to wear and may need to be replaced.
• From above, insert a flat-tipped screwdriver between the gear and the
platen cover and disengage the snap-lock of the platen cover. Pry up the
platen cover.
• Push the right-side bushing to the right to disengage it. Then, using
a moderate amount of force, pry the bushing, gear, and platen roller
upwards.
• Lift out the platen roller and the left-side bushing.
• Replace with a new set of platen roller, bushings, and gear in reverse
order. Make sure that the D-plane of the left side bushing fits into the
D-shaped hole, and that the tab on the right-side bushing fits into the
corresponding slot in the base frame moulding before locking the assem-
bly with the platen cover.
Platen roller
Platen cover
Snap-lock
Right-side bushing
Tab
Gear
Intermec EasyCoder PC41—Service Manual