Amazon.com: HP 81A Black Toner Cartridge | Works with HP LaserJet Enterprise M604, M605, M606 Series; HP LaserJet Enterprise MFP M630 Series | CF281A : Office Products
1PK CF281A Black Toner cartridge For HP 81A LaserJet Enterprise M605n M606x | eBay
Everyday Black Toner compatible with HP 81A (CF281A), Standard Yield 006R03648 by Xerox