Ricoh FT5540 Service Manual page 69

31 August 1989
Code #2D: No Encoder Output
Definition:
Lights durnig a copy cycle when the output frequency from the scanner motor encoder is not
detected for 490 milliseconds after the scanner motor is energized or if the scanner home
position sensor opens or shorts during a copy cycle.
Observation:
During a copy cycle the scanner first moves then stops. The scanner does not move at all.
Points to Check:
Check the scanner drive motor, the scanner home position sensor, and CN306-2, 3 on the
optics board.
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