Product Name: Omera Compatible Refill Ink Bottle Replacement for 542 T542 Product Brand: Omera Ink Type: Printer Dye Ink Page Yield: Black Ink up to 7500 Pages, Colors Ink up to 6000 Pages. Ink Capacity:127ml Black Ink & 70ml Cyan/Magenta/Yellow Ink. (At 5Percent coverage on A4 paper) Applicable Model: ? EcoTank Pro ET5150 Wireless AllinOne Supertank Printer ? EcoTank Pro ET5170 Wireless AllinOne Supertank Printer ? EcoTank Pro ET5800 AllinOne CartridgeFree Supertank Printer ? EcoTank Pro ET5850 AllinOne CartridgeFree Supertank Printer ? EcoTank Pro ET5880 AllinOne CartridgeFree Supertank Printer with PCL Support ? EcoTank Pro ET16600 Wideformat AllinOne Supertank Printer ? EcoTank Pro ET16650 Wideformat AllinOne Supertank Printer ? WorkForce STC8000 Supertank Color MFP Printer Note: ? Please use the ink ASAP after opening, Please keep it in a cool dry place, avoid direct sunlight, and Keep out of reach of children. ? When using the printer, be sure to shut it down normally.Sudden power failure will cause the print head to not return to the protection compartment. ? Inkjet printers are recommended to print 12 times a week. If you do not print for a long time, the ink will dry and block the print head, resulting in poor printing results. ? Avoid printing continuously for a long time. This will cause the print nozzle to overheat, affecting its life and print quality. ? It is recommended not to add ink below the ink warning line, because if it is below the ink threshold, air will easily enter and cause poor printing results