Service manual

2AV/X
1-6-43
1-6
1-6-5 Drum section
(1) Detaching and refitting the drum
Follow the procedure below to replace the drum.
Cautions:
• Avoid direct sunlight or strong light when detaching and fitting the drum.
• Hold the drum at the ends and never touch the drum surface.
• After removing the drum, keep it in the drum case or storage bag to protect the surface from light.
Procedure
1. Remove the image formation unit (see page
1-6-40).
2. Remove the two screws holding the transfer
right guide and then the guide.
3. Remove the screw holding each of the three
drum separation claw assemblies and then
the assemblies.
Figure 1-6-57
4. Pull the drum shaft out and replace the drum.
• Check the letter indicating the drum type (G,
H or J) printed on the new drum flange.
• When fitting the drum, orient it correctly so
that the gear is positioned at the machine
rear.
• When fitting the drum shaft, insert it fully.
Figure 1-6-58
5. Remove the front image formation unit cover.
Rub the contacting surfaces of the drum shaft
and drum drive grounding plate with a cloth
and then apply the GE-334C conductive
grease (P/N A0199040) to the contacting
surfaces of the grounding plate. Refit the
removed parts.
6. After replacing the drum, run maintenance
items below.
• U109 “Setting the drum type “ (set to the
drum type printed on the new drum flange)
• U110 “Checking/clearing the drum
count”(clear the drum count)
• U111 “Checking/clearing the drum drive
time” (clear the value)
Figure 1-6-59
Drum separation claw assemblies
Transfer right guide
Drum
Drum shaft
Drum shaft
Drum drive grounding plate