The Epson Alarm Clock 27XL Cyan Ink Cartridge is smudge, water, and highlighter resistant for all 1100 pages of printing. Using DURABrite Ultra ink, the Alarm Clock 27XL (C13T27124012) helps you to reduce printing costs whilst producing quality documents.Compatible printers:- Epson WF-3620WDF- Epson WF-3640DTWF- Epson WF-7110DTW- Epson WF-7610DWF- Epson WF-7620DTWF