Part numbers:
Canon IRC5030 Drum Black GPR-31, OEM - 2778B004BA, 2778B004
Canon IRC5030 Drum Color GPR-31, OEM - 2779B004BA, 2779B004
Canon IRC5030 Drum Black GPR-31, Compatible - 2778B004BA-AM
Canon IRC5030 Drum Color GPR-31, Compatible - 2779B004BA-AM

Common errors:
Failure of Drum Unit.
Gradation, Fogging, Black or Color line, Uneven pitch

Compatible models:
imageRUNNER ADVANCE C5030
imageRUNNER ADVANCE C5035
imageRUNNER ADVANCE C5045
imageRUNNER ADVANCE C5051
imageRUNNER ADVANCE C5235
imageRUNNER ADVANCE C5240
imageRUNNER ADVANCE C5250
imageRUNNER ADVANCE C5255