Sc Code Descriptions - Ricoh Aficio 480W Dolphin-C2 Service Manual

SERVICE CALL CONDITIONS

4.1.2 SC CODE DESCRIPTIONS

SC143 C Scanner automatic adjustment error
At power on the automatic
adjustment of the CIS failed
after two attempts.
SC191 C Scanner thermistor detection error
The detected temperature
reading is below 0
or above 100
SC300 D Charge corona output error
Charge corona feedback
voltage of less than 1V was
detected for more than 200 s.
SC303 D Charge grid output error
Control PWM duty value is
higher than 1% (FB less than
1V) for more than 200 ms (a
grid current leak).
• White platen roller dirty or installed
• CIS LED malfunction.
• CIS !" PSU harness disconnected,
• CIS !" IOB harness disconnected,
• CIS !" IPU harness disconnected,
• CIS !" BCU harness disconnected,
• CIS defective.
• IPU defective.
• IOB defective.
• BCU defective.
• Thermistor disconnected, connection
o o
C (32 F)
o o
C (212 F).
• Thermistor has short-circuited.
• CBG power pack is defective.
• High voltage cable is defective.
• Poor connection of the power pack
• Dirty charge corona unit caused
• CBG power pack is defective.
• High voltage cable is defective.
• Poor connection of the power pack
• Dirty charge corona unit causing
4-2
incorrectly.
broken.
broken.
broken.
broken.
broken.
connector.
leakage.
connector.
leakage
28 April 2005