Ricoh D129 - SC Tables: Sc4 Xx

Service Call Conditions
SM 6-11 D129/D130
Trouble-
shooting
SC Tables: SC4xx
400 D
Vsg adjustment error
Vsg is more than 4.2V or 3.8V or less when the machine adjusts Vsg value.
 Dirty or defective ID sensor
 Defective ID sensor shutter
440 D
Transfer belt bias error
The feed back bias from the transfer belt is more than 4V for 60 msec while
the transfer belt bias is output.
The A/D conversion level is 20 or less for 60 msec.
The PWM duty is 24% or more for 60 msec.
 Power pack broken
 Defective harness
 Disconnected connector
441 D
Transfer/Development motor error
The machine detects a lock signal error from the transfer/development motor
for a continuous 20 times after the transfer/development motor turned on.
 Overload on the motor
 Defective transfer/development motor
 Defective harness
 Defective IOB