54 EasyCoder PX4i and PX6i Service Manual
Chapter 7 — Transfer Ribbon Mechanism
7.3 Ribbon Rewind Unit
Description
The ribbon rewind unit is the same for EasyCoder PX4i and EasyCoder
PX6i. It pulls the transfer ribbon around the printhead and winds it up on
a cardboard core. The unit is driven via a belt by the same stepper motor
that drives the platen roller.
The rewind unit is provided with a friction brake in order to keep the
ribbon tight.
Adjustment
There is no manual adjustment of the ribbon rewind unit other than the
tension of the belt to the stepper motor (see Chapter 8.4).