Ricoh PRO C7210

1.SC Codes
33
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC320-
04
D
Development Power Pack Output Error (Y) (4st)
SC320-
05
D
Development Power Pack Output Error (S) (5st)
When SC signals are detected 25 times consecutively in 20ms intervals (500
msec).
Details:
When the development power pack is shorted, the development power pack
detects it by means of an SC signal (HIGH level). The IOB monitors the SC signals
as explained above.
 Development power pack shorted
Disconnect the high voltage cable from the output terminal of the development
power pack of the corresponding color, and check the following points.
 PWM: Check the signal of the corresponding color.
If the signal is fixed to HIGH during photocopying process, replace the
harness or the IOB.
 Check the output of the development power pack of the corresponding color.
If the output is fixed to HIGH during photocopying process, replace the power
pack.
 If the output is normal during photocopying process, test the resistance
between the high voltage cable and the ground. If resistance is “0” or nearly
“0”, replace the high-voltage harness or PCU.
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC324-
01
D
Development Motor Error(K)
SC324-
02
D
Development Motor Error (C)
SC324-
03
D
Development Motor Error (M)
SC324-
04
D
Development Motor Error (Y)
SC324-
05
D
Development Motor Error (S)
At motor startup
When the LOCK signal is not detected for at least 1 sec. from after 1 sec. elapses
since the motor START signal is ON.