Have Black and White M607 printer that has the maintenance kit installed and now getting paper jam

[ca1030]

Have Black and White M607 printer that has the maintenance kit installed and now getting paper jam every other print job.  Never jammed before replaced the rollers.  Using the black rollers RM2-1286-000CN and read where should use a different roller? This is what came in the kit

[Repairatrooper]

The roller you installed is the correct one for monochrome printers like the M607. The other nearly identical roller has a white shaft and is for use in Color Laserjet printers. Where is the jam happening? Most common cause I come across is the pickup roller not being installed properly. Remove all rollers and reinsert, being careful to ensure that the upper pickup roller gets installed properly. Was this an OEM kit or third party? I have had poor success with 3rd party rollers.

[ca1030]

Now we are getting a 50.7F.00 Fuser error after getting the paper jam fixed.   This is a new fuser that we got  with a main. kit

Any help with this would be greatly appreciated.

[Repairatrooper]

This error indicates a problem with the fuser pressure release system.