Xerox WorkCentre Pro 412, Service Manual

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Introduction
WorkCentre Pro 412 August 2001 1-3
Launch Issue
General Safety Warning
Switch off the power to the machine and disconnect the power cord from the outlet while performing tasks that
do not need the electricity on. Contact with electricity can cause death or injury.
Power Supply
This product must be operated from the type of power supply indicated on the product’s data plate label.
This product must be connected to a protective earth circuit.
Safe Working
Throughout this procedure prior to working on any electrical circuit or any mechanical drive component discon-
nect all electrical power to the product. The disconnect device is the power cord. Remove the plug from the
power outlet.
Ventilation
This product should not be placed in a built-in installation unless proper ventilation is provided.
Operator Accessible Areas
This product has been designed to restrict operator access to safe areas only. Operator access to hazardous
areas is restricted with covers or guards, which require a tool to remove. Ensure that these covers or guards
are correctly replaced after every service or maintenance task.
Maintenance/Service
Do not to carry out any maintenance or service on the product, which is not described this service documenta-
tion.
Cleaning
Before cleaning this product, unplug the product from the power outlet. Always use materials specifically des-
ignated for this product, the use of other materials may result in poor performance and may create a hazard-
ous situation. Do not use aerosol cleaners, they may become flammable under certain circumstances.
Precautions
1. Be sure that all built-in protective devices are in place. Restore any missing protective covers.
2. When re-installing chassis and assemblies, be sure to restore all protective devices, including control
knobs and compartment covers.
3. Design Alteration Warning: Never alter or add to the mechanical or electrical design of this equipment,
such as auxiliary connectors, etc. Such alterations and modifications will void the manufacturer’s warranty.
4. Components, parts, and wiring that appear to have overheated or are otherwise damaged should be
replaced with Xerox spare parts. Always determine the cause of damage or overheating, and correct any
potential hazards.
5. Observe the original harness routing, especially near sharp edges, AC, and high voltage power supplies.
Always inspect for pinched, out-of-place, or frayed wiring. Do not change the spacing between compo-
nents and the printed circuit board.
6. Product Safety Notice: Some electrical and mechanical parts have special safety-related characteristics
which might not be obvious from visual inspection. These safety features and the protection they provide
could be lost if a replacement component differs from the original. This holds true, even though the
replacement may be rated for higher voltage, wattage, etc.
Lithium battery precautions
The Main PWBA is provided with a lithium Cell designated BAT1. Observe the following precautions:
•There could be a danger of explosion if the battery is subject to forced discharge or reverse voltage.
•The battery must only be replaced with the same type.
•The battery should only be replaced at a service centre not at a customer location
•The replacement battery must be the same type and manufacturer as the original.
•Lithium batteries contain substances which are subject to control and should not be opened, crushed or
burned during disposal.