OPC Drum Kit Katun Access. For CEXV53 / GPR57 / NPG73 Drum Unit Yields up to 150,000 pages Contains: (1) OPC Drum (1) Drum Cleaning Blade (1) Charge Roller Cleaning Wipe (1) Drum Unit Reset Chip For use in: IR ADVANCE 4525 I , IR ADVANCE 4525 I II , IR ADVANCE 4525 I III , IR ADVANCE 4535 , IR ADVANCE 4535 I , IR ADVANCE 4535 I II , IR ADVANCE 4535 I III , IR ADVANCE 4545 , IR ADVANCE 4545 I , IR ADVANCE 4545 I II , IR ADVANCE 4545 I III , IR ADVANCE 4551 I , IR ADVANCE 4551 I II , IR ADVANCE 4551 I III