user manual

Removal and Installation
8-3
HP DesignJet 430, 450C and 455CA Printers
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Before using this chapter to remove and install a new component,
always make sure that you have performed the relevant service test
from Chapter 4. If the test passes you will not need to replace the
component.
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Serious shock hazard leading to death or injury
may result if you do not take the following
precautions:
Ensure that the ac power outlet (mains) has a
protective earth (ground) terminal.
Switch the Printer off, and disconnect it from the
power source prior to performing any maintenance.
Prevent water or other liquids from running onto
electrical components or circuits, or through
openings in the module.
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