Question about HP LaserJet 2840 All-In-One Printer

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HP Color Laserjet 2840 now makes ear-splitting whine every time

My HP Color Laserjet 2840 has always been loud but recently it started making an ear-splitting high-pitched whine as it rotates and prints. It does this everytime it prints or cycles. It's almost unbearable. Any suggestions?

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Did the noise start right after you replaced a toner? If so it must be a bad toner which is causing the gears to grind. If this noise happened out of the blue then it might be a bad fuser drive gear which is the gears that connect the fuser to the machine.

Posted on Jul 16, 2009

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Hi there--


The 2840 at my office started making that horrible noise as well. It started after we installed a refurbished imaging drum. Did you install a new drum or a refurbished drum? The company we work with (All Copy Products, Colorado) can't figure out why our machine is making this noise. Let me know if you had any luck sorting out the issue. The noise is torturous!

Posted on Oct 03, 2011

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