Ricoh FT6645 Manual page 356

SERVICE CALL CONDITIONS
SC121 - Scanner home position sensor abnormal - stays on
Definition: [level: D]
The scanner home position sensor does not detect the off condition even if
the scanner leaves the scanner home position sensor by 120 mm.
Possible causes:
•
Scanner home position sensor defective
•
Scanner motor defective
•
Scanner HP sensor short
SC125 - Low scanner speed
Definition: [level: D]
The scanner speed, detected by the optics control board through the
encoder, is lower than the specified speed.
Possible causes:
•
Scanner drive motor defective
•
Optics Control Board defective
SC126 - High scanner speed
Definition: [level: D]
The scanner speed, detected by the optics control board through the
encoder, is higher than the specified speed.
Possible causes:
•
Scanner drive motor defective
•
Optics control board defective
SC127 - Scanner drive motor encoder failure
Definition: [level: D]
Scanner rotating direction detected by the optics control board through the
encoder is opposite to the specified direction.
Possible causes:
•
Scanner drive motor defective
•
Optics control board defective
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12 April 1993