Read Sharp AR-122EN (serv.man17) Technical Bulletin online
Sharp Electronics (UK) Ltd., Technical Services Group
1. Model Name
AR-M150/AR-M155/FO-DC550/AR-122E/AR-122EN/AR-152E/AR-152EN/AR-153E
AR-153EN/AL-1556/AL-1566/AL-1651CS/AL-1655CS/AL-1661CS/AL-1045/AL-1217
AL-1255/AL-1456/AL-1457/AL-1530CS/AL-1551CS/AL-1552/AL-1553/AL-1555
AL-1644
2. General
Depending on the paper type such as paper which generates a lot of paper dust, the
upper heat roller may be marked with tiny scratches and toner may adhere to the
scratched parts, resulting in toner staining of the copy paper.
For the machines where toner adheres to the upper heat roller, the upper heat roller whose
coating agent has been changed from PTEE to PFA to improve peelability of paper dust and
toner is newly supplied as a service part.
coating agent has been changed from PTEE to PFA to improve peelability of paper dust and
toner is newly supplied as a service part.
3. Cause
Normally, a small amount of toner which was not fixed to the paper and was attached on the
upper heat roller adheres to the next paper or the lower heat roller. Toner does not get stuck
to the upper heat roller.
However, depending on the component contained in the paper, the coating on the upper heat
roller may be marked with small scratches. It is presumed that adhesion of toner to the
scratched parts results in this phenomenon.
We think that when using paper which generates excessive paper dust, fusing of toner to the
paper decreases and toner is more likley to stick to the upper heat roller.
4. Note
As mentioned above, adhesion of toner to the upper heat roller is mainly caused by paper
which generates a lot of paper dust; toner is not sufficiently fixed to the paper.
Therefore, advise end users to use a better quality paper.
Supply of the upper heat roller for preventing toner
adhesion as a service part
TECHNICAL BULLETIN
Date:
1st August 2006
Model:
AL-1045/AR-M155
Ref.:
018
Colour:
White
Page:
1 of 2
Sharp Electronics (UK) Ltd., Technical Services Group
When replacing with the new upper heat roller although the paper which is easy to generate
paper dust (paper with lower toner fixability) is still used, the back of paper may be stained
since toner which was not fixed to the paper adheres to the lower heat roller through the
upper heat roller.
Current parts
New parts
No
Model
name
Version
P/G
No.
Parts code
Parts code
Price
rank
Q'ty
Parts
name
Effective
time
Inter-
chang
e-
ability
Note
1
AR-M150
AR-M155
AR-M155
FO-DC550
AR-122E
AR-122EN
AR-152E
AR-152EN
AR-153E
AR-153EN
AL-1556
AL-1566
AL-1566
AL-1651CS
AL-1655CS
AL-1661CS
AL-1655CS
AL-1661CS
AL-1045
AL-1217
AL-1255
AL-1456
AL-1457
AL-1217
AL-1255
AL-1456
AL-1457
AL-1530CS
AL-1551CS
AL-1551CS
AL-1552
AL-1553
AL-1555
AL-1644
AL-1553
AL-1555
AL-1644
ALL
10 -21
12 -21
14 -21
- NROLI0128QSZZ
AZ
1
Heat
roller
- -
<Interchange>
1. Interchangeable.
4. Not Interchangeable.
2. Current type can be used in place of new type.
New type cannot be used in place of current type.
5. Interchangeable if replaced with same types of related
parts in use.
3. Current type cannot be used in place of new type.
New type can be used in place of current type.
6. Others.
Parts marked with "
" is important for maintaining the safety of the set. Be sure to replace these parts with
specified ones
for maintaining the safety and performance of the set.
for maintaining the safety and performance of the set.
