Transfer Current - Ricoh FT6645 Manual

SERVICE CALL CONDITIONS

1.9 TRANSFER CURRENT

SC402 - Transfer current leakage
Definition: [level: D]
When the transfer power pack output voltage exceeds 4.5 KV for 200 msec
or more, the output current is multiplied by 0.8. If this condition occurs 11
time in a row, an SC is displayed.
Possible causes:
•
Transfer belt defective
•
Transfer power pack defective
•
Poor contact at transfer bias roller, discharge plate terminals
•
High voltage control board defective
1.10 DRUM
SC440 - Abnormal main motor speed
Definition: [level: D]
Lock signal stays low in the main motor on condition for 1.0 second or more.
Possible causes:
•
Main motor defective
SC442 - Drum thermistor open
Definition: [level: D]
The drum thermistor is open.
Possible causes:
•
Drum thermistor defective
6-12
12 April 1993