The RICOH Drum Unit P 500 is a high-quality replacement part compatible with the IP 500SF and P 501/500. - Brand: RICOH - Model Name: Drum Unit P 500 - Compatibility: RICOH IP 500SF / P 501/500 I accidentally purchased this and found it while tidying up earlier. I only opened the box to get the delivery note. If you need the delivery note, I will cut off the address and send it along with the unit. The box is also new and in good condition. It cost 16,580 yen. RICOH Genuine Drum Unit RICOH P 500 I opened it and immediately closed it, so it's in pristine condition.