Gestetner A294 Service Manual page 483

Rev.9/2001
SC592: Toner Bank Motor Error
Definition [B]
The BCU receives an abnormal signal from the toner bank motor.
Possible Causes
• Toner bank motor defective
• Too much load on the drive mechanism
• BCU defective
SC601: Communication Error Between SICU and SBU
Definition [B']
The SICU cannot communicate with the SBU board properly.
Possible Causes
• Poor connection between the SICU and SBU
• SBU defective
• SICU defective
SC602: Communication Error Between SICU and HDD Controller
Definition [B]
The SICU cannot communicate with the HDD controller properly.
Possible Causes
• Poor connection between the SICU board and HDD
• SICU board defective
SC620: Communication Error between BCU and ADF 1
Definition [B']
The TXD and RXD signals between BCU and ADF main board do not stabilize.
Possible Causes
• Poor connection between the BCU board and the ADF main board
• Noise on interface cable
SC621: Communication Error between BCU and ADF 2
Definition [B']
The TXD and RXD signals between BCU and ADF main board do not stabilize.
Possible Causes
• Poor connection between the BCU board and the ADF main board
• ADF main board defective
• BCU board defective
SM
CÓPIA NÃO CONTROLADA
7-25
CÓPIA NÃO CONTROLADA
SERVICE CALL CONDITIONS
A294/A295