Originally Posted by
hidius
looks like a seal has come off and jammed the supply screw on the hopper. the sub code points to the offending color hopper.
Remove the Process Unit and ITB Assembly (for easy access) with a good torch you will see the Seal of the offending Hopper hanging down & with a small pair of pliers grip the seal & with a backwards/forwards movement of the Toner dispensing Tube slowly (without breaking the Seal) pull the Seal towards the front of the machine - believe it or not, the Hopper does not leak excess toner & no other adjustment/settings need to be made, vac out the machine, clean Patch Detect Sensor assy & perform full Autograd.
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