Service manual

Ribbon Drive Belt
Preparations
The exterior cover must be removed prior to proceeding. (980428-101)
980428-132 Rev. 1 Prelim. 51
Removal
1. Cut the tie-wrap securing the main cable
harness to the power supply. Caution - Do
not cut the cables!
2. Disconnect the printhead cable (JP21) from
main PCBA.
3. Loosen the belt by rotating the belt
tensioner idler counter-clockwise. Lift the
ribbon belt off the ribbon pulley, rewind
pulley and then out.
Installation
1. Slide belt into position with the print head
ribbon cable passing through the belt.
2. Place the belt on rewind pulley behind the
power supply.
3. Place the ribbon belt over the belt tension
idler and around the outside gear of the
pulley clutch assembly. Rotate the tension
idler counter-clockwise to provide slack. Pull
the belt over the ribbon pulley. Release the
tension idler.
4. Reconnect the printhead cable to the main
PCBA .
5. Re-tie the main PCBA harness. Use the
"Securing the Harness" procedure.
Ribbon
Pulley
(60 Tooth)
Ribbon
Drive Belt
(324 tooth)
Platen
Pulley
Clutch
Belt
Tension
Idler
Power Supply
Location
Rewind
Pulley