Introduction
Phaser 3435 5/08 iii
Safety Precautions 
In order to prevent accidents and to prevent damage to the equipment, please read the precau-
tions listed below carefully before servicing the machine and follow them closely. 
Warnings, Cautions and Notes
WARNING
A warning is used whenever an operating or maintenance procedure, practice, condition or state-
ment, if not strictly observed, could result in personal injury.
CAUTION
A caution is used whenever an operation or maintenance procedure, practice, condition or state-
ment, if not strictly observed, could result in damage to the equipment.
Note: A note is used where it is essential to highlight a procedure, practice, condition or 
statement.
Safety Warning 
1. Only to be serviced by appropriately qualified service engineers. 
High voltages and lasers inside this product are dangerous. This machine should only be ser-
viced by a suitably trained and qualified service engineer. 
2. Use only Xerox replacement parts 
There are no user serviceable parts inside the machine. Do not make any unauthorized 
changes or additions to the machine, these could cause the machine to malfunction and cre-
ate electric shock or fire hazards.
3. Laser Safety Statement 
The machine is certified in the U.S. to conform to the requirements of DHHS 21 CFR, chapter 
1 Subchapter J for Class 1(1) laser products, and elsewhere, it is certified as a Class I laser 
product conforming to the requirements of IEC 825. Class I laser products are not considered 
to be hazardous. The laser system and machine are designed so there is never any human 
access to laser radiation above a Class I level during normal operation, user maintenance, or 
prescribed service condition. 
WARNING
Follow the service procedure exactly as written. Use of controls or adjustments other than those
specified in this manual, may result in an exposure to invisible laser radiation. During servicing,
the invisible laser radiation can cause eye damage if looked at directly.