Specification: Compatible ink cartridges (Non-OEM) but work as good as originals Please pull the yellow label before installing each cartridge Please make sure you use following printer: HP Officejet Pro 251dw HP Officejet Pro 276dw Multifunction HP Officejet Pro 8100 ePrinter - N811a/N811d HP Officejet Pro 8600 e-All-in-One Printer - N911a HP Officejet Pro 8600 Plus e-All-in-One Printer - N911g HP Officejet Pro 8600 Premium e-All-in-One - N911n VIVINK Warm Tips 1, If replace new ink cartridges, please clean the print head before original ink runs out. 2,If there is broken or lack of color, so that ink cartridges in the cartridge tray to stay 20-30 minutes. 3. If the printing problem persists, follow the printer manual to check the print head 1-3 times until the print is smooth. 4, if the printer does not recognize the cartridge, wipe the chips of cartridges with eraser and remove the cartridge to re-install If the printer still does not work, try to restart the machine. 5. Do not remove the ink cartridge from the printer until the ink runs out. 6, the printer should turn on at least once a week to prevent the print head plug. 7, Once opened, please run out within 6 months to ensure the best printing results. 8, If there are other problems, please feel free to contact us
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