Insert printhead. Press firmly on each printhead to ensure proper contact after installation. Pull the latch all the way forward and down, and engage the catch with the hook (item 2 in the graphic). Push the latch towards the back of the printer. You might have to apply some pressure to close the latch. Close the printhead cover and the ink cartridge cover. Wait while the printer initializes the printheads. This can take a few minutes. When initialization is complete, an alignment page prints. If no alignment page prints, check to make sure there is media in the trays. If the printer detects an error with a printhead, the carriage will move automatically when the printhead cover is opened.
If the printer does not detect an error or problem, the "tick" button needs to be pressed after opening the printhead cover to move the carriage. use and maintain hp restricted 3-45