Ricoh Aficio Sc 122
The scanner home position sensor
does not detect the home position
during initialization.
Causes:
Scanner I/O board or SBU defective
• Scanner motor defective
• Harness between scanner I/O board
and scanner motor disconnected
• Scanner HP sensor defective
• Harness between SBU and HP sensor
disconnected
• Scanner wire, timing belt, pulley, or
carriage defective
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