High pitch squealing coming from one of the rollers
Whenever we print there is high pitch squeal coming from one of the rollers. I think it is from bottom roller you can see when you open the back paper door. It happens when printing from either tray. We have had this printer for over 1 year, have not installed any new parts and this just started happening recently. Does it need to be oiled? Replaced? Cleaned? If so How do we do it?
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The fuser is the part of the printer that heats the toner to the paper. turn the printer around and open the back cover. You should see a long black bar with green clips on either side to release a paper jam. There may also be rollers in there. Make sure there is no debris in the fuser, and that those clips are in the functioning position (usually down). If the fuser is removable, which I don't think it is in this model, take it out and then reinstall it. Then give it a shot. Usually though high pitched squeal is a toner cartridge thing. If you are using reman cartridges try a new (actual hp) cartridge from office depot or staples.
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Had same problem that went away after replacing each of the drum roller wheel/bearing assemblies. (repairclinic.com) Not the easiest of jobs removing & replacing the drum, but a lot cheaper than a new machine.
i have the same problem, changed the alternator, pulley and all that, it happened after i had the intake changed out due to the egr problem, if yours hasn't been changed id look into it before it goes, better sooner than later sorta things...
IT IS MORE THAN LIKELY A STUCK DRUM ROLLER OR IDLER PULLEY. I HAVE SEEN IN WORST CASE SCENARIOS WHERE IT HAS BEEN THE MOTOR ITSELF WHEN SUBJUCTED TO LOTS OF LINT AND DUST FROM PLUGGED VENTING. I WOULD CHECK THE FIRST TWO AS THEY ARE THE MOST COMMON. DO NOT OIL THEM.
the high pitch squeal indicates shorted component/s. the transformer goes hot co'z its being overloaded by the shorted component, it too could be the one creating the squeal!!
if you have experience with electronic troubleshooting, try to test some of the components particularly on the secondary part of the transformer. Be careful and make sure the TV set is unplugged. test for shorted diodes and transistors, if you're in doubt of your readings try to desoldering one leg of the diode then proceed with the testing/measuring. replace any of the bad components you find exactly with same part number or replacements with the same rating.
spend more time on it resoldering some other cold soldered components.