QINK Combo Set 2PK for 940 Printhead Long-Life Premium BK/Y C4900A C/M C4901A (Printhead 2PK: BK/Y C/M);

What's in the box:
1 pack remanufactured hp 940 printhead (BK/Y)
1 pack remanufactured hp 940 printhead (M/C)

Compatible printer model:
HP Officejet Pro 8000 Enterprise - A811a (CQ514A)
HP Officejet Pro 8000 Wireless - A809n (C9307A)
HP Officejet Pro 8000 - A809a (CB092A#B1H)
HP Officejet Pro 8500 - A909a (CB793A)
HP Officejet Pro 8500 Wireless - A909g (CB794A)
HP Officejet Pro 8500 Wireless - A909g (CB874A)
HP Officejet Pro 8500A - A910a

● Use Instruction:
1. Remove orange cover and ink tape, install into printer.
2. Do NOT use finger to touch the chip.

Use Warm Prompt:
1. Before installing the new printheads, please make sure printer works properly. Otherwise the mainboard may burn it which causing the printer refusing to print.
2. The printheads must use with suitable ink cartridges, dye ink and pigment ink can not be used mixedly.
3. Please clean the printheads everytime when you change 940/940XL ink cartridges in order to keep your printer running smoothly.

● Notice:
1. Please confirm PRINTER MODEL before order.
2. If printer appears "Non-Genuine" or "Align Fail" or other error message, please click "YES" or "OK" or "NEXT" to continue, then printer can print.
3. If the printer can't recognize printheads, please take off printheads, use eraser to clean the chips softly, install back and restart printer. (We advise you wearing gloves and prevent extra ink)
4. If prints come with fading color, steak or broken lines at the first time you install new ink cartridges, please try to do Printer Head Cleaning once or twice. (Cleaning is in PRINTER SETTING)