Question about HP Officejet Pro L7780 All-In-One InkJet Printer
It could be one of a few things, one being the yellow toner cartridge, try using a different cartridge after replacing the cartridge run several cleaning modes from the service menu. If the problem is still persistent it could be the fuser assembly is too hot and therefore is scorching the paper or the etb is dirty. to clean the belt, access the secondary service menu, setup/press setup and cancel at the same time/ press set up again and you should see the secondary service menu/ select clean belt/ do this 5 times.
Posted on Jul 14, 2010
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Posted on Jan 02, 2017
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