HP Officejet J4680 - Manual (Page 111)

If you are replacing the black, photo, or gray photo ink cartridge, remove the ink
cartridge from the slot on the right.
4. Pull the ink cartridge toward you out of its slot.
5. If you are removing the black ink cartridge in order to install the photo or gray
photo ink cartridge, store the black ink cartridge in the ink cartridge protector or an
airtight plastic container.
6. Remove the new ink cartridge from its packaging and, being careful to touch only
the black plastic, gently remove the plastic tape by using the pink pull tab.
1 Copper-colored contacts
2 Plastic tape with pink pull tab (must be removed before installing)
3 Ink nozzles under tape
CAUTION: Do not touch the copper-colored contacts or ink nozzles. Also, do
not re-tape the ink cartridges. Doing so can result in clogs, ink failure, and bad
electrical connections.
Work with ink cartridges 107