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1. Optical section cleaning
1.1 Remove screws A and the original glass retaining plate.
Remove the original glass and clean it both sides with
window cleaner. Note – do not remove screws B. They are
used for correction of image skew and registration of the
copy image.
1.2 Remove screw C and the L-shaped plate with it. Remove the
lens cover D, carefully in the direction E, careful not to
break the drive tooth belt of the lens assembly and the
carriage drive wire. See figure 1.
E
B
1.3 Clean with dry lint free cloth mirrors 1, 2, 3, 4 and 5 as well
as the expo-lamp reflector.
1.4 Clean with isopropyl alcohol the sliders A of the carriage 1
and 2. Note – be careful not to bend carriage 3, because it is
mounted only to the rear side of the copier. Bending will
result in copy image skew. See figure 2.
1.5 Inspect the ends A of the process unit holder that protrude
from the optical unit bottom. If they are broken the process
unit will move from side to side causing image distortion
and excessive wear of the main drive gear assembly. See
figure 3.
A
D
C
A
A
1
2
3
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