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General Procedures and Information
5-4
Xerox DocuPrint P8e Service Manual
5.1.3 ESD Precautions
Semiconductor (solid state) devices that are easily damaged by static electricity are called
Electrostatically Sensitive Devices. Examples are integrated circuits (ICs), large-scale integrated circuits
(LSIs), semiconductor chip components, and some field-effect transistors.
The following techniques are designed to reduce the danger of damage to printer components as a
result of static electricity.
1 Check and observe all the safety and servicing precautions.
2 Before handling any circuit board or wiring assembly, perform the ESD procedures.
NOTE: to avoid the danger of shock, be sure to remove the wrist strap before powering up the unit under
test.
3 Place any sensitive assemblies on a conductive surface. This will prevent accumulation of static
electricity.
4 Do not use freon-propelled chemicals. These can generate enough static charge to damage
sensitive components.
5 Do not remove a replacement component from its protective package until you are ready to
install it. Most replacement components are packaged with leads that are electrically shorted
together by conductive foam, aluminum foil, or other conductive material.
6 Immediately before removing the protective material from the component, touch the protective
material to the printer chassis or the circuit assembly in which the device will be installed.
7 Minimize body motions when handling unpackaged replacement components. Even such simple
motions as clothes brushing together or a foot being lifted from a carpet can generate enough
static electricity to cause damage.
5.1.4 Laser Safety
The DocuPrint P8e laser printer contains a Class IIIb laser. All laser safety information is contained on
pages iii and iv in the front of this manual.
CAUTION
These components are susceptible
to electrostatic discharge. Observe
all ESD procedures to avoid
damage.
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