Sc 4Xx (Image Transfer And Transfer Error); Sc 5Xx (Motor And Fusing Error) - Ricoh RN-MF2 Field Service Manual

SC 4xx (Image Transfer and Transfer Error)

Bias leak
An error signal is detected for 0.2 seconds when changing the development unit.
491
• Defective transfer roller
• Defective high voltage power pack
1. Turn the machine's main power off, and then on.

SC 5xx (Motor and Fusing Error)

Main motor error
The machine does not detect a main motor lock signal within 2sec after the main motor
started to rotate.
-or-
The machine does not release a main motor lock signal within 2sec after the main motor
switched off.
-or-
The machine detects a main motor lock signal every 100ms for seven times consecutively,
500
after the main motor started to rotate stably.
• Overload of
• Torque load overload
• Defective main motor
• Disconnect or defective motor harness
1. Turn the machine's main power off, and then on.
2. Check or replace the main motor if the torque load is normal.
3. Replace the motor harness.
Exhaust fun Error
The FAN lock signal – High for 10 seconds, after the fan motor started to rotate.
530
• Disconnected or defective motor harness.
1. Turn the machine's main power off, and then on.
Service Call Conditions
137