Hi, My laserjet 8550 is making a loud grinding noise. Was working fine one evening when I turned it off, next morning when I turned it on - grinding noise. Will print but jams. Any ideas. Please help.
SOURCE: HP LASERJET 4250n PRINTER-PROBLEM WITH PAPER JAMS AND "FUSER ERROR"
Put a maintence kit in your machine, easy install, everything just clicks in, Every 200 000 prints it should be done, it includes the fuser, all feed rollers, sep pad and transfer roller.
These are great printing machine, they only ever need the MK and on this model a fuser drive gear wears and get noisy, but once that has been done once, it is ok from then on.
KIts seem expensive but they are meant to last 200 000 prints and usally do. These are one of the best most reliable printers in the market.
LINK to part info
SOURCE: hp 4250 paper jam erro
Is it a new or refurbished fuser? Where exactly does it jam. By trays, registration or before fuser? Problem can be with various sections. Need to know more.
SOURCE: hp laserjet makes a continuous screeching noise when plugged in and will not print.
I have an identical situation. I have isolated the source of the loud screech to the (laser scanner assembly) p/n RGO-1041. The unit is located underneath the top cover, where the printed paper rests after it is ejected. I had to remove the right and left side covers, then remove the three screws holding down the top cover. There are two screws up front and one to the rear, it then lifts straight up. The laser scanner has a ribbon cable, and four purple wires going to it, oh yeah there is a big yellow warning label, so you can't miss it. I hope this helps. Sorry, I accidentally posted this in problem section.
SOURCE: how to clean a density sensor unit on a hp color laserjet 8550
1 Open the right upper door.
Sensor is located on the door lower center of door ther should be a small brush next to it
2 Use the brush located next to the sensor to remove all toner
particles from the sensor.
SOURCE: hp laserjet p2055dn Replace fuser unit
That is a job by it self. If you don't want to damage your printer, I'd suggest you take it to an HP dealer pay some money and get it first checked and if so be the case that it has to change, let them change it.
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