Your satisfaction with this HP 02 is 100% guaranteed for 1 full year. HP Photosmart C7280 ink cartridges Remanufactured HP 02 ink cartridges, 13 pack Remanufactured HP 02 ink cartridges, 13 pack Remanufactured HP 02 ink. 6 Pack HP 02 C8721WA-C8775WA Genuine Ink Cartridges 1BK,1C,1M,1Y,1LC,1LM END OF LIFE.
The motor should start the pump during the power up sequence. Turn the large gear counter clockwise several times. It is a peristalsis pump with 6 hoses running over it.
This compatible HP 02 (C8721WN) ink has been designed to meet or exceed the original HP equipment’s yield and quality, and is guaranteed to function correctly in your HP printer. The ink pump has a belt running over a 1.25' (ish) gear near the front of the printer.
