Cap/Wipe/Purge Assembly Belt Adjustments - Tektronix Phaser 360 Service Manual

Cap/wipe/purge assembly belt adjustments

The tension of the cap/wipe/purge assembly belts is factory-set. Do not adjust
them. The belts are kevlar-reinforced; they will not stretch over their lifetime.
The belts are also factory-adjusted for parallel tracking (alignment). As long as
the belts, cap/wipe/purge assembly motor, or the belt clips (which hold the
cap/wipe/purge assembly) are not disturbed, no adjustment is needed.
However, if you replace one or both of the belts or the cap/wipe/purge drive
motor, you must ensure that the belts are in alignment (timing) with each other;
this ensures that the cap/wipe/purge assembly the belts carry is perfectly
aligned to the faceplate of the printhead. If the belts are not aligned, the
printhead purging is ineffective due to poor sealing between the printhead
faceplate and the cap/wipe/purge assembly.
1. Ensure that the cap/wipe/purge assembly is properly installed. Also
ensure that the cap/wipe/purge drive motor is installed in place and
that both the left- and right-side drive belt tension springs are hooked
in place.
2.
Rotate the large drive gear to pull the cap/wipe/purge assembly to
the top of its travel in the chassis frame slot.
3. Inspect the left- and right-side brackets of the cap/wipe/purge
assembly relative to the top of the left- and right-side chassis frame
slots; the gaps should be the same on each end.
4.
If the gaps are not the same, unhook the cap/wipe/purge assembly
drive belt tension spring on the left side of the printer to relieve
tension on the belt. Slip the belt by one tooth over the left-side drive
shaft gear. Hook the tension spring back in place and recheck the gap.
5. Repeat until the gaps are the same.
Checks and Adjustments
Service Manual 9-11
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