HP Officejet Pro 276dw Multifunction Printer series - Manual (Page 159)

4. Remove the printhead by lifting it up and then pulling it out of the printer.
5. Make sure the latch handle is raised, and then reinsert the printhead.
6. Carefully lower the latch handle.
NOTE: Make sure you lower the latch handle before reinserting the ink
cartridges. Leaving the latch handle raised can result in incorrectly seated ink
cartridges and problems printing. The latch must remain down in order to
correctly install the ink cartridges.
7. Close the ink cartridge access door.
Understand the network configuration page
If the printer is connected to a network, you can print a network configuration page to
view the network settings for the printer. You can use the network configuration page to
Understand the network configuration page 155