SHARP SP1718 Technical Report
Date: Mar. 29, 1994
COPIER : Z-20
No. : SP-1718
PREVENTION OF ABNORMAL NOISE.
1.ABNORMAL NOISE FROM THE DRIVE UNIT .
2.ABNORMAL NOISE FROM THE FUSING UNIT.
1.Model name: Z-20 / 23 / 25
2.General: Grease has been applied to prevent the occurrence of abnormal noise in the Z-20
series.
3.Description: 1. Prevention of abnormal noise occurring in the drive unit.
White grease (UKOG-0158FCZZ) has been applied to the shaft contact areas and the
gear teeth of gear 27, and gear 17 in the drive unit.
White grease (X5-6020) should be applied only to the
gear teeth in the ar eas designated by the arrows.
Drive unit
Shaft 24, 22B
(approx. 5 mg.)
Gear 24
Gear 27
Bushing A
➀ Approximately 15 mg. of white grease (X5-6020) should be
applied to the exposed areas of the XX section shaft.
The grease should be applied to the entire surfaces of
shafts 24, 22B.
SHARP CORPORATION Reprography Division
1/2
Green
C
2. Prevention of abnormal noise occurring in the fusing unit.
Heat resistant grease (GU-2) has been applied to the rear side of the heat roller .
After applying approximately 15 mg of heat resistant grease to the circumference of
the right side of the heat roller the fusing gear is inserted into the heat roller and
fastened by the C ring.
Note: The heat roller ground has been removed from the static electricity discharge
brush at the end of the heat roller (Z-25). Checks should therefore be carried out
so that the static electricity discharge brush has not been coated with the
grease.
<Detailed instructions
for grease application>
[Application area]
Heat resistant grease (GU-2) is
applied to the surface of the heat
roller between the fusing bearing
and the C ring groove.
4.Action: (Factory action)
From 1993 Mid November production.
C Ring
Fusing gear
Fusing bearing
Heat roller
Caution 1: Grease should not be
applied to the end of the
heat roller.
Caution 2: Grease should not ooze
from the inside of the fixing
bearing.
2/2
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