HP ENVY 4501 e-All-in-One Printer - Manual (Page 49)

Replace the cartridges
To replace the cartridges
1. Check that power is on.
2. Load paper.
3. Remove cartridge.
a. Open the cartridge access door.
Wait for print carriage to move to the right side of the printer.
b. Lift up the cartridge tab, and then remove it from the slot.
4. Insert new cartridge.
a. Remove cartridge from packaging.
ENWW Replace the cartridges 45