MX-C300P, MX-C300PE, MX-C300PL. Service Manual (Revised May 2016). - Sharp Copying Equipment Service Manual (repair manual). Page 5

MX-C300P  NOTE FOR SERVICING - ii

8) Unstable or slant surface

The unstable place like the unstable pedestal or the tilted place
could affect the print image quality.   
The installation place must be strong enough to safely support
the weight of the machine as well as any installed options.  
If the machine drops or falls down, it may cause an injury or a
breakdown.
If there are optional paper desks and the copier desks speci-
fied, it is recommendable to use them.

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.

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.

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
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.