NEC Super Script 4400 Maintenance Manual page 185

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7 .5.8 Drum Encoder Sensor (EN)
Tools
Phillips Screwdriver #1, #2
Disassembly Procedures
1.
Remove the toner module.
2.
Remove the photoconductor belt
module.
3.
Remove the drum cleaner.
4.
Remove the fuser unit.
5.
Remove the side cover (L). (See the
item 7.1.2.)
6.
Remove the top cover. (See the item
7.1.4.)
7.
Remove the transfer drum. (See the
item 7.6.3.)
8.
Remove the high voltage unit. (See the
item 7.2.6.)
9.
Remove the sensor holder assembly
from the frame (L).
10. Disconnect the connectors connected
with the encoder sensor.
11. Remove the encoder sensor from the
sensor holder.
Assembly Procedures
1.
Install a new drum encoder sensor to
the sensor holder.
2.
Connect the connectors with the
encoder sensor.
3.
Install the sensor holder assembly to
the frame (L).
4.
After the above , follow exactly the
reverse order of disassembling
procedures.
176
SuperScript 4400 — Maintenance Guide
Drum Encoder Sensor
(EN)
Sensor Case
Transfer Drum
Frame Ass'y

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