New printers come with toner installed by default. The display will alert you when the toner level becomes low, at which point please follow HP's instructions to replace it.
The printer displays "Select Language" and won't print. What do I do?
The first time a printer is used or if it is ever reset, it must be configured by responding to the on-screen prompts. You can simply press the "OK" button repeatedly, selecting all the defaults, until it says "Ready."
How do I fix streaks, lines, or otherwise poor print quality?
Print a "Cleaning Page." In order to do so, navigate through the following options on the printer LCD screen:
Print Quality Tools
Printing the cleaning page will usually clear the printer's rollers of stray ink that is causing print issues.
What if printing a "Cleaning Page" helps, but the issue keeps coming back?
If you are not using the recommended paper, it's possible that the paper you are using is not compatible with the printer. When toner doesn't print properly to a page, it can end up on the rollers where it will cause streaks on later pages. Try printing another cleaning page and then using a recommended paper.
If you are using a recommended paper, the toner cartridge may be defective and may need to be replaced.