Changing fuser drive gears on HP LaserJet P4014, P4015
If you hear consistent grinding or rumbling noises from the rear of your HP LaserJet P4014, P4015, or P4515 series printer, you probably need to replace the 3 gears in the fuser drive assembly. Often, the printer gets even noisier when a new fuser is installed, because the gears on the new fuser do not mesh well with the worn-out gears in your printer.
We sell a repair kit to fix this problem. Replacing these gears is considered a major repair. For those of you familiar with printer repair, the process for installing these gears will be similar to replacing the swing plate assembly on the LaserJet 4250/4350 series printers..