How do I perform printhead alignment?

First, load one of these paper types: HP Bright White Inkjet Paper, HP Coated Paper, HP Heavyweight Coated Paper, HP High-Gloss Photo Paper, HP Satin Poster Paper, or Plain Paper. Then from the front panel select Ink > Align Printheads > Standard (4.5 minutes) or Special (11 minutes) and press Enter. Standard alignment requires paper of at least A4/Letter-size in landscape mode, while Special alignment requires A3/B-size paper in landscape mode. (Page 67)