Chapter 3 — Replacing Parts
44 EasyCoder PD41/PD42 Printer Service Manual
To replace the belt
1 Disconnect the power cord and remove the left-hand panel (For help,
see “To remove the left-hand panel” on page 27).
2 Disconnect the cable from P31 on the main board and free the cable
from the spiral bindings and the cable clip.
3 Remove the four screws that hold the stepper motor module to the
bottom plate.
4 Disconnect the belt(s) from the motor’s pulley and pull out the motor.
5 Install belt and motor in reverse order. If the printer is equipped with a
rewinder, fit the platen roller belt on the inner pulley (that is, the pulley
closest to the motor housing) and the rewinder belt to the outer pulley.
To replace the pulley
1 Disconnect the power cord and remove the left-hand panel (For help,
see “To remove the left-hand panel” on page 27).
2 Pull off the belt from the pulley. Temporarily disconnecting the tension
adjuster spring makes the process easier.
3 Remove the E-ring that holds the pulley on the platen roller shaft.
4 Install the pulley in reverse order.
Platen Module
The platen module is comprised of a rubber-coated roller and a shaft. Its
purpose is to drive the media through the print mechanism and serve as a
counter-force to the thermal printhead. The silicone rubber is subject to
wear and requires the platen roller to be replaced, usually with long
intervals.
Note: If the printer is not equipped with a rewinder, it has only one belt.
Do not remove the motor. Pull the belt off of the platen roller pulley and
then off the motor pulley. Fit the new belt in reverse order. Temporarily
disconnecting the tension adjuster spring makes the process easier.
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General
Weight and Dimensions
