Ricoh D146 Service Manual page 580

Service Call 700-792
SC No. Level
SC702-01 D
SC702-02 D
SC702-03 D
SC702-04 D
D146/D147/D148/D149/D150
Error Name/Error Condition/Major Cause/Solution
Protection Device Intercept Error 1 (ARDF)
When original source 5V power supply is ON, protection device
intercept of 24V power supply system is detected.
Any of feed motor, transport motor, reverse solenoid, paper feed
solenoid, paper feed clutch and FAN motor defective, a harness
short-circuit occurs, and the protection device of the 24V power
supply system intercepts.
§
Replace the blown fuse or circuit board
§
Replace the short-circuited parts
Protection Device Intercept Error 2 (ARDF)
When original source 5V power supply is ON, protection device
intercept of 24V OUT power supply system is detected.
Solenoid defective or harness short-circuit occurs in 24VOUT
power supply system.
§
Replace the blown fuse or circuit board
§
Replace the short-circuited parts
Protection Device Intercept Error 3 (ARDF)
When original source 5V power supply is ON, protection device
intercept of 5VE power supply system is detected.
Sensor defective or a harness short-circuit occur in 5VE power
supply system.
§
Replace the blown fuse or circuit board
§
Replace the short-circuited parts
Protection Device Intercept Error 4 (1-pass ADF)
Motor defective in any of the pickup motor, completion stamp,
base plate motor or FAN motor, or a harness short-circuit
occurs, and the protection device of the non-interlocking power
supply system intercepts.
5-106 SM