To observe the cartridge,if there is a gas film,tear it.
To turn the orange cap and unscrew it,which may need to removed forcibly.
To press the cartridge replaced button and move the word car to the right place according to the right colour.
for HP Officejet 4500 J4535 J4580 J4660

Ink cartridge use tips:
1. After a long-distance transport, due to road bumps or man throw, ink cartridge compartment may be with bubbles. It's better to place it for some time and then install on the machine. If not eager to use, it is recommended to save the ink laying the outlet down. For immediate use, please throw down the ink outlet several times to exhaust air inside the cartridge and ensure printing smoothly.
2. When Replace ink cartridge please clean the print head before the cartridge runs out.
3 .If there is disconnection or lack of color, please remain the ink cartridge in the printer within 20-30 minutes.
4 .If the printing problem still exists, please test the printhead 1-3 times until it prints smoothly according to the printer manual.
5 .If the printer does not recognize the ink, remove the ink cartridge than reinstall it.
6 .If the printer still does not work you can try to restart the printer.
7 .Do not remove the ink cartridge from printer before it runs out.
8 .Turn on the printer at least once a week to prevent the printer head blocked.
9 .Please make the ink cartridge run out in 6 months to ensure the best printing performance.
Print Yield: Black: 700 pages per cartridge
shell material: ABS

Package Contents:
2 x Cartridge