when attempting to print a few pages from my laptop, one page came out normal but there on, most of the page comes just black. Ran all the maintenance service checks and diagnostics, which look ok but when I go back to printing, the problem repeats.
As I understand a part of the page is printing completely black,
Don't worry as I'll be glad to help you, although, to provide an accurate solution, I'll need a few more details to dissect your concern:
Have you received any errors during or after the diagnostic/service checks?
Are you using genuine HP Cartridges?
While you answer those queries, here's a few things you can try:
Solution one: Use genuine HP cartridges
HP recommends that you use genuine HP ink or toner supplies. HP cannot guarantee the quality or reliability of non-HP or refilled cartridges. If you do not use genuine HP cartridges, the steps in this document might not resolve the issue. To check the authenticity of your cartridges, go to hp.com/go/anticounterfeit.
Solution two: Allow automatic servicing to complete
Many print quality problems with black ink, such as poor black text or issues that occur with a newly installed black cartridge, clear up with the printer's automatic servicing routine. There is nothing you need to do. The print quality should start improving in a few hours.
Solution three: Check the paper
Follow these guidelines to make sure that the paper you are using is appropriate for the print job. If it is not, reload the printer with an appropriate paper type.
Solution five: Check the estimated ink levels, and then replace any depleted cartridges
In general, low ink levels should not impact print quality. Your printer stops and displays a message when ink levels get too low. However, the printer might still perform a limited amount of printing in 'backup mode' at low ink levels. In backup mode, blacks might not be as dark, or printouts might be in grayscale (shades of gray with no color). Replace any low cartridges if backup mode printing is unacceptable.