Check if the pressure release control lever (MLEVP1113FCZZ) or the pressure release detect actuator (MLEVP1112FCZ2) is not broken. Ensure there is sufficient grease between the fusing gear and pressure release drive gear.
When securing the pressure release detect actuator to the pressure release drive
mounting plate with the E-ring, the E-ring may scratch the pressure release detect
actuator. If the pressure release detect actuator becomes scratched, the E-ring may catch the scratched area which in turn, may cause a pressure release detect actuator
malfunction and resulting L4-16 trouble code (Fusing pressure release trouble).
To prevent the E-ring from scratching the pressure release detect actuator, a poly slider has been added between the pressure release detect actuator and E-ring. In addition, the shapes of the pressure release detect actuator and the pressure release detect plate N have also been changed accordingly.
The new pressure release detect actuator, new type pressure release detect plate N and newly added poly slider must all be installed at the same time otherwise, L4-16 trouble may still be experienced when using a mixed combination of original and new type parts.
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