06-28-2014 12:12 AM - edited 06-28-2014 12:17 AM
My printer had the same problem - when printing a typical Word document page, it would put some black ink on paper, but only some lines would print, leaving most of the page blank.
I tried to realign the heads several times, it did not fix the problem. I changed the black ink cartridge, it did not help either.
So I went on Amazon, ordered new "hp original" printing heads, got them delivered from a third party vendor in a couple of days, changed the heads, and now my printer works as new.
Changing the heads costs me 1/3 of the price of a new printer. The local electronics company who sold be the printer did not have heads on stock and was only willing to sell me a new printer.
12-01-2014 09:46 AM
Please post back with some additional detail, such as what you have tried so far and what printer model you have; How Do I Find My Model Number or Product Number?
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Sunshyn2005 - I work on behalf of HP