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3600 Printer Maintenance Manual
5-16
5. Remove the TTR drive gear/pulley retaining E-ring. Retain the washer
located between the E-ring and the TTR drive gear/pulley. Discard the old
E-ring.
6. Remove the retaining snap ring that secures the printhead lift lever to the
cam assembly shaft. Pull the printhead lift lever off of the printhead lift
shaft. Discard the old snap ring.
3600M.054
TTR drive
roller
Snap ring
Printhead
lift
lever
Upper
outboard
plate
E-ring
Cam assembly
shaft
Printhead
spring
E-ring
Washer
Washer
7. Unhook the printhead spring from the upper outboard plate and remove
the screws securing the plate to the printer. Pull the plate away, freeing up
the TTR drive roller (and the TTR shaft, printhead pressure cam assembly,
and pivot block).
8. Remove the TTR drive roller, sliding the gear/pulley off of the roller shaft.
Retain the washer located between the roller and the main deck plate and
the washer located between the gear/pulley and the main deck plate.
9. You can now replace either the TTR drive roller, the TTR drive gear/pulley,
or both.