Safety Precautions; Electrostatic Discharge (Esd) Precautions - HP DesignJet 2500CP Service Manual

Safety Precautions

(Safety symbols ' Immediately after the table of contents.)
Review WARNING and CAUTION symbols and instructions before you
service the plotters. Follow these warnings and cautions for your protection
and to avoid damaging the plotter.
Serious shock hazard leading to death or injury
W A R N I N G
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 plotter 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.

Electrostatic Discharge (ESD) Precautions

To prevent damage to the plotter circuits from high voltage electrostatic
discharge (ESD):
Do not wear clothing that is subject to static build up.
1.
Do not handle integrated circuits (ICs) in carpeted areas.
2.
Do not remove an IC or a printed circuit assembly (PCA) from its
3.
conductive foam pad or conductive packaging until you are ready to install
it.
Ground (earth) your body while disassembling and working on the plotter.
4.
After removing a cover from the plotter, attach an earthing (ground) lead
5.
between the PCA common and earth ground. Touch all tools to earth
ground to remove static charges before using them on the plotter.
After removing any PCA from the plotter, place it on a conductive foam
6.
pad or into its conductive packaging to prevent ESD damage to any ICs on
the PCA.
8-4 HP DesignJet CP Series Printers Removal and Installation