Sharp AR-6020DV

AR-6020V NOTE FOR SERVICING - ii
4. Note for handling PWB and electronic
parts
When handling the PWB and the electronic parts, be sure to
observe the following precautions in order to prevent against dam-
age by static electricity.
1) When in transit or storing, put the parts in an anti-static bag or
an anti-static case and do not touch them with bare hands.
2) When and after removing the parts from an anti-static bag
(case), use an earth band as shown below:
- Put an earth band to your arm, and connect it to the
machine.
- When repairing or replacing an electronic part, perform the
procedure on an anti-static mat.
5. Note for repairing/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)
5) Be careful not to attach fingerprints, oil, grease, or other for-
eign material on the transfer roller.
(Developer unit)
1) Be careful not to attach fingerprints, oil, grease, or other for-
eign material on the developer unit.