Solving a 50.7 Error with Clicking or Gear Grind Noise on the HP CP6015/CM6040MFP

You may run into a problem in which the fixing alienation gear could break due to a larger than expected number of alienation cycles (i.e. switching between power save and printing many time each day, power cycling often, etc). This occurs especially later in the product’s lifespan. If this gear fails, the fuser will cease to alienate, the printer will make clicking/gear grind noises, and a 50.7 error will be displayed.

So how do you fix it?

You’ll need to replace the fuser alienation gear (RM1-3247 or newer). Just follow these steps to remove the gear:

1. Open the right door.
2. Remove the fuser.
3. Remove one screw and remove the black sensor cover.
   
4. Remove one e-clip.
   
5. Slide the fuser drive gear from the shaft.
   
6. Slide the fuser alienation gear from the shaft (note: the replacement gear may be black instead of white).