HP LaserJet Pro 400 M451nw (CE956A) 600 dpi x 600 dpi USB/Ethernet/Wireless Workgroup Color Laser Printer Output Capacity, std.: 150 pages Black Print Quality: 600 x 600 dpi Cartridges Compatible: HP 305A Black LaserJet Toner Cartridge (yield ~2200 pages) CE410A HP 305X Black LaserJet Toner Cartridge (yield ~4000 pages) CE410X HP 305A Cyan LaserJet Toner Cartridge (yield ~2600 pages) CE411A HP 305A Yellow LaserJet Toner Cartridge (yield ~2600 pages) CE412A HP 305A Magenta LaserJet Toner Cartridge (yield ~2600 pages) CE413A Part Number: CE956A Display: 2-line LCD (text) Color Print Speed: Up to 21 ppm Time To First Page (seconds): Black: As fast as 17 sec. Color: As fast as 17 sec. Print Languages, std.: HP PCL 6, HP PCL 5c, HP postscript level 3 emulation