Phaser 4500/4510 Laser Printer Service Manual xv
Service Safety Summary
General Guidelines
For Xerox-certified service personnel only: Refer also to the preceding Power
Safety Precautions.
Avoid servicing 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: 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 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
will not apply more then 264 volts rms for a 220 volt AC outlet or 140 volts rms
for a 110 volt AC outlet 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.
Warning Labels
Read and obey all posted warning labels. Throughout the printer, warning
labels are displayed on potentially dangerous components. As you service the
printer, check to make certain that all warning labels remain in place.
Safety Interlocks
Make sure all covers and the printer’s control panel are in place and all
interlock switches are functioning correctly after you have completed a printer
service call. If you bypass an interlock switch during a service call, use
extreme caution when working on or around the printer.
CLASS 1 LASER PRODUCT
The Phaser 4500/4510 Laser 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. When servicing the printer or laser unit, follow the procedures
specified in this manual and there will be no hazards from the laser.