Xerox FaxCentre F116 Service Manual page 12

Introduction
be caught in revolving parts such as the timing belt and gears.
• Before attempting to replace parts and unplug connectors, make sure that the power cord of
the machine has been unplugged from the wall outlet.
• While the product is energized, do not unplug or plug connectors into the circuit boards or har-
nesses.
• Never use flammable sprays near the machine.
• A used battery should be disposed of according to the local regulations and never be dis-
carded casually or left unattended at the user's premises.
• When reassembling parts, make sure that the correct screws (size, type) and toothed washer
are used in the correct places.
Precautions for Circuit Inspection
• Never create a closed circuit across connector pins except those specified in the text and on
the printed circuit.
• When creating a closed circuit and measuring a voltage across connector pins specified in the
text, be sure to use the GND wire.
Handling of PWBs
During Transportation/Storage
• During transportation or when in storage, new P.W. Boards must not be indiscriminately
removed from their protective conductive bags.
• Do not store or place P.W. Boards in a location exposed to direct sunlight and high tempera-
ture.
• When it becomes absolutely necessary to remove a Board from its conductive bag or case,
always place it on its conductive mat in an area as free as possible from static electricity.
• Do not touch the pins of the ICs with your bare hands.
• Protect the PWBs from any external force so that they are not bent or damaged.
During Inspection/Replacement
• Avoid checking the IC directly with a multimeter; use connectors on the Board.
• Never create a closed circuit across IC pins with a metal tool.
• Before unplugging connectors from the P.W. Boards, make sure that the power cord has been
unplugged from the outlet.
• When removing a Board from its conductive bag or conductive case, do not touch the pins of
the ICs or the printed pattern. Place it in position by holding only the edges of the Board.
• When touching the PWB, wear a wrist strap and connect its cord to a securely grounded
place whenever possible. If you cannot wear a wrist strap, touch a metal part to discharge
static electricity before touching the PWB.
• Note that replacement of a PWB may call for readjustments or resetting of particular items.
Handling of Other Parts
• The magnetic roll in the toner cartridge generates a strong magnetic field. Do not bring it near
a watch, floppy disk, magnetic card, or CRT tube.
Handling of the Drum Cartridge
During Transportation/Storage
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