Gestetner B070 Service Manual page 351

SC701: ADF Pick-up Roller Release Malfunction
Definition [B]
The pick-up roller HP sensor does not activate or de-activate when the pick-up
motor turns on.
Possible Causes
• Pick-up roller HP sensor defective
• Pick-up motor defective
• ADF main control board defective
SC702: ADF Feed-in Motor Error
Definition [B]
While the feed motor is operating, the encoder pulse signal is not received within
the specified time, or the paper size length encoder signal cannot be detected
within the specified time (the encoder is built into the feed-in motor).
Possible Causes
• Feed-in motor defective
• Paper length sensor
• ADF main control board defective
• Poor connection between the feed-in motor and ADF main board
SC703: ADF Transport Belt Motor Error
Definition [B]
While the motor is operating, the encoder pulse signal is not received within the
specified time and the transport belt motor does not turn properly.
Possible Causes
• Transport belt motor defective
• Poor connection between the transport motor and ADF main board
• ADF main board defective
SC704: ADF Feed-out Motor Error
Definition [B]
While the feed-out motor is operating, the encoder pulse signal is not received
within the specified time, and the feed-out motor does not turn properly
Possible Causes
• Feed-out motor defective
• Poor connection between the feed-out motor and ADF main board
• ADF main control board defective
SM
CÓPIA NÃO CONTROLADA
4-31
CÓPIA NÃO CONTROLADA
SERVICE CALL CONDITIONS
B070/B071