Phaser 7700 Color Printer Service Manual
vii
Service Safety Summary
General Guidelines
For qualified service personnel only:
Refer also to the preceding Users Safety
Summary.
Do not service alone:
Do not perform internal service or adjustment of this
product unless another person capable of rendering first aid or resuscitation is
present.
Use care when servicing with power on:
Dangerous voltages may exist at several
points in this product. To avoid personal injury, do not touch exposed
connections and components while power is On.
Disconnect power before removing the power supply shield, soldering, or
replacing components.
Do not wear jewelry:
Remove jewelry prior to servicing. Rings, necklaces, and
other metallic objects could come into contact with dangerous voltages and
currents.
Power Source:
This product is intended to operate from a power source that
does not apply more than 127 or 240 volts AC RMS (depending on printer
model) between the supply conductors or between either supply conductor
and ground. A protective ground connection by way of the grounding
conductor in the power cord is essential for safe operation.
Class 1 Laser Product
The Phaser
®
7700 Color Printer is certified to comply with Laser Product
Performance Standards set by the U.S. Department of Health and Human
Services as a Class 1 Laser Product. This means that this is a class of laser
product that does not emit hazardous laser radiation; this is possible only
because the laser beam is totally enclosed during all modes of customer
operation.
The laser and output of the laser scanner unit produces a beam that, if looked
into, could cause eye damage. Service procedures must be followed exactly
as written without change.
When servicing the machine or laser module, follow the procedures specified
in the manual to avoid any hazards from the laser.
Laser (FDA): Any laser label visible to service must be reproduced in the
service manual with location shown or indicated. Safe working procedures
and clear warnings concerning precautions to avoid possible exposure must
also be included.