Information Related To Disassembly And Assembly; Special Service Parts - Samsung CLP-31 Series Service Manual

3.3 Information Related to Disassembly and Assembly.

3.3.1 Special service parts

Never disassemble or adjust the items mentioned, a stock of these items should be maintained.
1) Disassembly of the LSU unit
There are no serviceable parts inside the LSU.
Alignment of the mirrors is critical.
Opening the LSU will allow dust into the laser
and significantly reduce print quality.
It is very dangerous to operate or service a
machine with the LSU open or system interlocks
disabled. Exposure to laser radiation can cause
blindness.
2) Disassembly of the ITB unit
Do not disassemble the ITB. The alignment of
the home sensor is critical and is set up in the
factory on a special jig.
Incorrect re-assembly will cause print quality
degradation.
3) Care of the Toner cartridge
Toner cartridges contain an extremely fine
powder. Please keep toner cartridges away from
children. The toner powder contained in the
toner cartridge may be harmful and if swallowed
you should contact a doctor. Take care not to
spill toner - spillages should be cleaned with
a vacume cleaner and washed in cold water
(hot water sets the toner). Do not touch the
developer roller surface as contamination will
reduce print quality. Take care not to damage
the roller's surface when installing or removing
a toner cartridge.
Service Manual
Disassembly and Reassembly
4) Disassembly of DEVE drive ass'y and
the main drive ass'y
The alignment of the drive mechanism is critical
and it has been set up in factory using a jig
and a driving gear. It is adjusted for the best
gearing alignment. If the motor is disassembled
alignment would not be maintained and
this could cause operational noise and
image problems: image alignment and toner
distribution may be affected.
5) Disassembly of terminal parts
Do not adjust the variable resistors on the PBA.
They have been already adjusted in the factory.
6) Disassembly of the fuser unit
- The fuser melts toner onto the paper at a
high temperature: therefore, you need to take
special care not to get burned by a hot fuser.
When removing the fuser from a set that has
recently been operating you need to take extra
care.
- Do not touch an AC line (Copper contact) on a
main frame even after removing the fuser.
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