HP Officejet Pro X series - Printbar Install Guide

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Slide the dolly (callout 1) forward, away from the product, to
remove the printbar assembly (callout 2).
CAUTION: Use extreme care when handling the printbar while it
is out of the product. It can be easily damaged.
Before reinstalling the printbar, check the shims for a signicant
buildup of ink/dust. If there is a signicant build up, the shims
can be cleaned very carefully with a lint free wipe.
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X451/X551 models only: Reinstall the top brace.
X476/X576 models only: Reinstall the top cap assembly.
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Reinstall the printbar lock. Turn the lock to lift the printbar to
its top-most position. There should not be more than a 1.5 mm
gap between where the printbar guide meets the lift rod Z stop
on the front and rear guide rods. If a larger gap is evident, the
printbar guide may be misaligned by a tooth. Lower the printbar
back onto the dolly and see step 10 of Remove the printbar to
remove and reinstall the lift guide rods.
Remove the printbar dolly and verify that the service sled
drive is not easy to turn. If the service sled is not easy to turn,
this indicates that the service sled transmission is in the
correct position.
REINSTALLATION TIP: Remove the printbar safety cap before
reinstalling the service sled.
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Reinstall the printbar.
Slide the printbar dolly with new printbar gently into position
and ensure it is fully seated. Insert the front and rear lift guide
rods and ensure they are fully seated in their pockets.
REINSTALLATION TIP: Install the orange printbar safety cap onto
the new printbar before mounting it onto the printbar dolly.