Lexmark 11C0200 Service Manual - Page 99

Lexmark 11C0200 - Optra SC 1275 Color Laser Printer Manual

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During Replacement: • • • Before you unplug connectors from the circuit boards, be sure the power cord has been unplugged from the power outlet. When you remove a board from its conductive bag or 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. Before you plug connectors into the board, be sure the power cord has been unplugged from the power outlet. During Inspection: • • • 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. When it is absolutely necessary to touch the ICs and other electrical components on the board, be sure to ground your body. Precautions for Handling the Drum Cartridge The following precautions must be observed when handling the drum cartridge: During Transportation/Storage: • • Use the specified carton whenever moving or storing the drum cartridge. The storage temperature is in the range between -20°C and +40°C. Handling: • • • The PC drum in the drum cartridge exhibits greatest light fatigue after being exposed to strong light over an extended period of time. Never, therefore, expose it to direct sunlight. Use care not to contaminate the surface of the PC drum with oilbase solvent, fingerprints, and other foreign matter. Do not scratch the surface of the PC drum. Parts not to be touched Any part where the mounting screws are painted red, such as the printhead, must not be removed, disassembled or adjusted. 3-2

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3-2
During Replacement:
•
Before you unplug connectors from the circuit boards, be sure
the power cord has been unplugged from the power outlet.
•
When you remove a board from its conductive bag or 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.
•
Before you plug connectors into the board, be sure the power
cord has been unplugged from the power outlet.
During Inspection:
•
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.
•
When it is absolutely necessary to touch the ICs and other elec-
trical components on the board, be sure to ground your body.
Precautions for Handling the Drum Cartridge
The following precautions must be observed when handling the
drum cartridge:
During Transportation/Storage:
•
Use the specified carton whenever moving or storing the drum
cartridge.
•
The storage temperature is in the range between -20
°
C and
+40
°
C.
Handling:
•
The PC drum in the drum cartridge exhibits greatest light fatigue
after being exposed to strong light over an extended period of
time. Never, therefore, expose it to direct sunlight.
•
Use care not to contaminate the surface of the PC drum with oil-
base solvent, fingerprints, and other foreign matter.
•
Do not scratch the surface of the PC drum.
Parts not to be touched
Any part where the mounting screws are painted red, such as the
printhead, must not be removed, disassembled or adjusted.