HP 940XL Black Officejet Ink Cartridges produce laser-quality black text, using HP Officejet inks. Print professional, plain paper documents, using pigment inks designed for the office.nn- Get superior laser-quality business documents. Print sharp, rich black text, using pigment inks and papers with the ColorLok logo. Choose affordable individual inks - replace each ink cartridge separately when needed.n- Print professional, plain paper documents that resist water and fading, using pigment inks designed for the office1. Archived output will retain colour quality for decades2. HP Officejet inks dry faster on papers with the ColorLok logo.n- Get two times more black printed pages, using high-capacity ink cartridges designed for frequent printing2. High-capacity Original HP ink cartridges yield more printed pages and require fewer replacements than standard Original HP ink cartridges.nn- 1Majority of colour laser AiOs < $600 and colour laser printers < $300, June 2008, HP Officejet Pro with highest-capacity cartridges. For details www.hp.com/go/officejet.n- 2Based on HP internal testing, using paper with the ColorLok logo.