MX-C250 NOTE FOR SERVICING - iii
5. Note for replacing the LSU
When replacing, be sure to observe the following items.
1) When replacing the LSU, be sure to disconnect the power plug
from the power outlet.
2) When replacing the LSU, follow the procedures described in
this Service Manual.
3) When checking the operations after repairing the LSU, keep all
the parts including the cover installed and perform the opera-
tion check.
4) Do not modify the LSU.
5) When visually checking the inside of the machine for the oper-
ation check, be careful not to allow laser beams to enter the
eyes.
If the above precaution is neglected or an undesignated work is
performed, safety may not be assured.
6. Note for handling the OPC drum unit, the
transfer unit, and the developer unit
When handling the OPC drum unit, the transfer unit, and the devel-
oper unit, strictly observe the following items.
If these items are neglected, a trouble may be generated in the
copy and print image quality.
(OPC drum)
1) Avoid working at a place with strong lights.
2) Do not expose the OPC drum to lights including interior lights
for a long time.
3) When the OPC drum is removed from the machine, cover it
with light blocking material. (When using paper, use about 10
sheets of paper to cover it.)
4) Be careful not to attach fingerprints, oil, grease, or other for-
eign material on the OPC drum surface.
(Transfer unit)
1) Be careful not to attach fingerprints, oil, grease, or other for-
eign material on the transfer belt and the transfer roller.
(Developer unit)
1) Be careful not to attach fingerprints, oil, grease, or other for-
eign material on the developer unit.
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