Question about HP LaserJet 5550 Printer
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Posted on Jan 02, 2017
I had this same issue, are you able to print from the printer's internal test feature? If so try turning the power off for at least 10 seconds. This is just at temporary fix I am still looking for a permanent fix that does not involve replacing the printer.
Posted on Feb 13, 2009
SOURCE: HP LJ 2600 "dirty" printing
If the toner cartridges are "refills" that might explain some of your print quality issues. Unfortunately, HP only has 2 replacement parts for that model, the fuser and the ETB (Transfer belt) both would require a technician to replace. Check the transfer belt of any tears or punctures. Careful not to touch it, oils from your skin can cause quality issues as well. If at all possible replace all the toners with ones that were working fine.
Posted on Jul 31, 2009
In my case, reinstalling didn't help at all.
In Control Panel->System->Advanced Properties->Performance, enabling DEP only for the essential windows services solved the problem.
Posted on Dec 20, 2009
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