Platen Roller - Intermec EasyCoder 501 Service Manual

Chapter 8 Print Unit

8.3 Platen Roller

Stepper
Motor
Bracket
(different type
in EasyCoder
501 LL)
Pulley
Ball Bearing
46
The platen roller is coated with silicon rubber. It is imperative that
the roller is clean, free from uneven wear or dents, and exactly
aligned with the printhead (see Chapter 24.3). The EasyCoder 501
LinerLess has a special type of platen roller that prevents labels
from stick to the roller. The roller is supported by two ball bearings
and can be replaced as follows:
• Remove the screws that hold the stepper motor to the motor
bracket and pull out the motor. Do not remove the bracket.
• Pull the belt away from the pulley of the platen roller.
• Using a 2 mm hexagon wrench, loosen the single grub screw
that hold the pulley on the shaft.
• Using a #T20 Torx screwdriver, remove the bracket that holds
the bearing at the outer end of the shaft.
• Pull out the roller and the two ball bearings.
• Reassemble in reverse order using a fresh set of roller and
ball bearings. The distance between the pulley of the pressing
roller and the inner gable of the print unit should be 5 mm (.2
inches).
• Check the tension of the belt (see Chapter 8.4). Also check
printout quality by means of test labels (see Chapter 24.1).
Belt
Platen Roller
Ball Bearing
Belt (not fi tted in EasyCoder 501 LL)
Stepper motor bracket dismantled to give
better view. Bracket does not need to be
dismantled for replacing the platen roller.
Bracket
Intermec EasyCoder 501 – Service Manual Ed. 7
NOTE!
Upper part of print unit
omitted to give better view.
#T20 Torx Screw