HP DeskJet 990C Series - Replacing Print Cartridges

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Print Cartridges: Replacing Print Cartridges
Replacing Print Cartridges
To Replace a Print Cartridge
1 To access the print cartridge cradle, make sure the OUT tray is
down (1.1) and then press the Power Button (1.2) to turn on the
printer.
2 Open the top cover. The cradle moves to an accessible position.
3 Raise the cradle latch.
4 Lift the print cartridge out and discard it.
Note:
When buying replacement print cartridges, check the part
numbers carefully. The print cartridge numbers for your printer are:
Black HP 51645
Series or HP No. 45
Tri-Color HP C6578 Series or HP No. 78
Note:
When a print cartridge runs out of ink, leave the empty
cartridge in the cradle until you can replace it. The printer does not
print with only one print cartridge in the cradle.
Keep print cartridges out of the reach of children.
Cradle latch
Cartridge
1.2
1.1
2
3
4
OUT tray in down position
Warning