HP 938 black Original Ink Cartridge for HP OfficeJet Pro 9110, 9120, 9130, 9720, 9730 series – 4S6X8PE Features Color: Black Page yield (color): Average cartridge yields 1,250 standard pages. Quality and reliability you can trust: Get the printing performance you expect from HP Designed to be recycled: Free and easy recycling to help reduce waste More ink Cartridges Count on professional-quality documents. Original HP Ink Cartridges provide impressive reliability for dependable performance and durable results. Print with inks that produce business documents with vibrant colors and sharp black text.