Adjust Print Quality : Align the Print Head

Align the Print Head
If your printouts become grainy or blurry, or you see dark or light bands across them, you may need to align the print head.
Note:
Banding may also occur if your print head nozzles need cleaning.
You can align the print head using your printer’s control panel or your software. See these sections below:
Using the Control Panel
From the Computer