HP Officejet Pro L7680 all-in-one print problems

[Bossman623]

After being in storage, the printer prints ok for the first page then starts skipping and fads heads have been cleaned and aligned.

[Jack81]

This sounds exactly like my problem.  But I am using a 6500 wireless printer.  The printer has been in storage for 5 months.  The cartridges were removed and placed in my refrigerator.  Upon reinstalling the cartridges the printer seemed to print; but there was no ink on the paper.  I cleaned the print heads several times.  The level of the color cartridges went down significantly; but the black cartridge did not.  I replaced the black cartridge with a newly purchased one.  The problem persists.   Test pages show all the color but no black.

[-JohnB-]

This article covers general print quality issues and should help with the problem you are experiencing. Give the steps outlined a shot and let us know if it helps.

Best of Luck!