Ricoh Aficio MP2550B Service Manual page 358

SP5xxx: Mode
Motor
Relay
52 Transport
Motor
53 Relay SOL
Total
54
Counter
Polygon
60
Motor
Polygon
61
Motor
62 LD ON
107 QL
108 PP. Chrg.
PP.
109
Development
PP. Image
110
Transfer
PP.
111 Separation
Voltage
Scanner
202
Lamp
5807* Option Connection Check
1 ARDF
2 Paper Tray Unit
D017/D018/D019/D020
Bridge unit drive motor (Optional bridge unit)
Junction gate solenoid (Optional bridge unit)
Total counter
Polygonal mirror motor
Polygonal mirror motor and laser diode
Laser diode - Do not use
PP. means "Power Pack" (PCBs).
Checks the connectors to the optional
peripheral devices. Execution will return
5-94 SM