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Intermec EasyCoder 601 XP – Service Manual Ed. 3
Chapter 8 Print Unit
Description
The print unit normally has two toothed belts, one that drives the
pressing roller and another that drives the ribbon return roller and
the ribbon rewind unit. There is also a third belt if an optional
backing paper rewind unit is fitted (see chapter 9). The belts are
subject to wear and may need periodical replacement. Properly
adjusted tension and alignment of the pulleys will increase time
between replacements.
Replacement
• Turn off the power to the printer and disconnect the power cord.
• Open the front and right hand doors.
• Remove the cover over the electronics compartment, which is
held by eight #T10 Torx screws.
• Remove the tension of the belt to the ribbon rewind unit by
loosening the two #T20 screws that holds the ribbon rewind unit.
• Dismantle the stepper motor from the bracket by removing the
two #T20 Torx screws.
• Free the belt from the pulley of the ribbon rewind unit and
manipulate the stepper motor so it comes free from both belts.
Remove the stepper motor.
• Replace the defective belt or belts.
• When putting back the stepper motor, fit the short belt first, while
letting the long belt hang loosely on the idler in a loop, through
which you can insert the pulley of the stepper motor. Do not put
the long belt around the pulley of the ribbon rewind unit until you
have fitted the stepper motor to the bracket and checked that both
belts are engaged by the stepper motor's pulleys.
• Adjust the tension of the belts as described in chapter 8.5 and put
back the cover.
Refer to illustration on next page!
8.4 Belts
