impse400 (I3C) / 172.17.8.182 hp color LaserJet 4600 Information For highest print quality always use genuine Hewlett-Packard supplies. BLACK CARTRIDGE HP Part Number: HP C9720A 73% Estimated Pages Remaining: 11025 (Based on historical black page coverage of 2%) Low Reached: NO Serial Number: 35860 Pages printed with this supply: 4078 TRANSFER KIT HP Part Number: HP C9724A 87% Estimated Pages Remaining: 103856 Etc.