5-4 Service Manual
5056-XXX
Component locations
Number Component Number Component
1 Printhead controller board 15 Main unit fan
2 Operator panel 16 Power supply 2
3 Motor driver board 17 CK2 daughter board
4 Power switch 18 Expansion paper feed controller
5 Sensor board 19 Paper size detector board (expansion paper
feed option)
6 MPF clutch 20 Power supply 1
7 Registration clutch 21 Drive motor (extended paper feeder option)
8 CK1 daughter board 22 Paper lift motor (expansion paper feed option)
9 Printer controller board 23 Paper volume detection sensor (expansion
paper feed option)
10 LED fan 24 Tray 1 low sensor
11 High voltage unit (HVU) 25 Paper lift motor
12 Drive motor 26 Temperature/humidity sensor board
13 Fuser fan 27 Relay clutch
14 Paper exit motor
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