MX-4100N, MX-4101N, MX-5000N, MX-5001N (serv.man16). Service Manual-Section 8-Maintenance - Sharp Copying Equipment Service Manual (repair manual). Page 18

MX-4101N  MAINTENANCE  8 – 18

(Note for servicing the transfer unit)
1. Prevention of oily dirt attachment
[Note]
• Be careful not to attach fingerprints or oily dirt on the transfer belt

surface. (Keep the transfer unit away from oil and dust.)

• When replacing the transfer belt, hold the edge section (within

10mm from the edge) of the transfer belt.

• When rotating the transfer belt manually, use a screwdriver to

turn the drive gear section as shown below.

• When installing the transfer unit, hold the handle to insert the unit

into the machine. When placing the transfer unit on the guide rail
of the machine and inserting the unit to the machine, the expo-
sure surface on both sides of the transfer belt may be touched
erroneously. Use enough care not to touch the exposure surface.
Also when the right door is opened, the exposure surface may be
touched. Use enough care in this case, too.

[Countermeasures]
If oily dirt is erroneously attached to the transfer belt surface, per-
form the following countermeasures.
1)

Use alcohol to remove oily dirt from the transfer belt.

2)

Wipe alcohol trail completely away from the transfer belt sur-
face. (If alcohol trail remains on the transfer belt, its image may
be printed on copy paper.)

3)

Apply KINER to the cleaning blade to prevent reverse rotation
of the cleaning blade.

[Check method]
Check to confirm that the transfer belt is free from fingerprints or
oily dirt and that alcohol trails are completely removed or not by the
following method.
• Make three continuous multi prints of half tone images on all the

surface of A3 (11" x 17") paper, and check the printed paper for
any alcohol trail images.

1)

Open the front cover.

2)

Remove the waste toner box.

10mm

10mm

Exposure surface of the transfer belt

Exposure surface of the transfer belt