Sc 6Xx (Communication And Other Errors) - Ricoh SP 330DN Field Service Manual

6.Troubleshooting
No. Type
SC557 B Zero-crossing frequency exceeded
The number of zero cross signal interrupts do not reach a specified value during
frequency detection.

None
No. Type
SC559 A Fuser 3 times jam error
The paper jam counter for the fusing unit reaches 3. The paper jam counter is
cleared if the paper is fed correctly.


This SC is activated only when this function is enabled with "SC559 Detection" in
"Engine Maintenance" (default "OFF").
Turn off this function after a jam removal.
No. Type
SC580 A Environment thermistor error
The thermistor output is less than 0°C for 5 seconds after the fusing lamp turns ON.
Disconnected or defective environment thermistor
1.
2.

SC 6xx (Communication and Other Errors)

No. Type
SC688 D PRREQ signal not asserted
The print request signal (PRREQ) signal is not asserted within the prescribed time
after paper reaches the registration stand-by position,


1.
2.
178
Error Name/Error Condition/Major Cause/Solution
Unstable frequency of the power supply line
Error Name/Error Condition/Major Cause/Solution
Defective fusing unit
Defective fusing control
Error Name/Error Condition/Major Cause/Solution
Reset the SC.
Replace the environment thermistor.
Error Name/Error Condition/Major Cause/Solution
Main board error
Communication error
Turn the power OFF and ON.
Check the interface harness of the main board.