SC400 on Ricoh MPC2051

SC400 on Ricoh MPC2051/ 2551 is really a pain is ass. Service manual says that it is ID sensor (Image density sensor) adjustment error. Here is procedure to eleminate this error.

  • Remove transfer belt unit from the machine.
  • Now you will be able to see ID sensors, exact location of the sensors is just beneath the transfer belt unit.
  • Clean the ID sensor with a wet cloth, Do not use dry cloth or tissue papers.
  • There is a metal plate on front side of the transfer unit, remove it (2 screws) and clean it well.
  • Refix all removed parts.
  • Switch on the machine.

Here you go, SC400 should have vanished by now. 

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