Brother HL-2400C Service Manual page 300

I-21 Insufficient Gloss
Phenomenon
Gloss of the print is not sufficient as shown in
Main Causes
1) The fuser cleaner is stained.
2) The fuser roller is deteriorated.
Countermeasures
1) Replace the fuser cleaner with a new one. (See
2) Replace the fusing unit with a new one. (See
Note:
When replacing the fusing unit, wait approximately for 30 minutes after the new unit is
installed to allow the fusing oil to circulate in the new fusing unit.
I-22 Back Stain
Phenomenon
Back side of the print paper is stained as shown in
Main Causes
Fusing unit:
1) The cleaning pad of the fuser cleaner is stained.
2) Silicone oil in the oil bottle is short.
3) The fuser roller and back-up roller are dirty.
Countermeasures
1) Replace the fuser cleaner with a new one. (See
2) Clean the fuser roller and back-up roller.
3) Replace the fusing unit with a new one. (See
print sample (21) of
Section 3.3 of Chapter
Section 2.2 of Chapter
print sample (22) of Fig.8-2.
Section 3.3 of Chapter
Section 2.2 of Chapter
VIII-54
Fig.8-2.
III.)
VI.)
III.)
VI.)