Ricoh Aficio MP201SPF Service Manual page 194

SC Tables
No.
Definition
TD sensor error
The BICU detects the TD sensor
390 B
outputting extraordinary voltage
(less than 0.2 V or more than 4.0 V)
10 times consecutively.
Development bias leak
The polling module detects a
391 B
current leak of the development
bias.
Developer initialization error
The ID sensor does not detect a
392 B
correct pattern during developer
initialization (
Transfer roller leak error (positive electrode)
401 B
The feedback voltage of the
transfer roller is insufficient.
D115/D116
Symptom
2-214-001).
6-6
Possible Cause
Defective TD sensor
Loose connection of the PCU
Loose connection of the PCU
Defective high voltage supply
board
Defective ID sensor
Insufficient developer
Defective drum operation
Defective development roller
operation
Loose connection of the PCU
Insufficient voltage for the
charge roller
Defective high voltage supply
board
Loose connection of the PCU
Incorrect installation of the
transfer unit or the separation
unit
Defective transfer roller
SM