Minolta Di 620 Manual page 265

9) C0200 : PC Drum Charge Corona Leak Detected
C0210 : Image Transfer Corona Leak Detected
C0220 : Developing Bias Leak Detected
C0230 : Paper Separator Corona Leak Detected
PC Drum Charge/Developing Bias HV HV1
Image Transfer/Paper Separator HV HV2
Relevant Electrical Parts
Master Board PWB-A
Power Supply Board PWB-C
T-50
1155C13TAA