The toner collection motor sensor out-
put does not change for 3 seconds
while the toner collection motor is on.
• Motor lock due to obstruction
• Motor driver board defective
• Motor connection loose, defective
• Toner collection motor sensor disconnec-
ted, sensor defective
• Rotational transmission shaft (φ6 x 30)
missing
599 D
1-bin Exit Motor Error (Japan Only)
The transport lock sensor output does
not change within 300 ms after the mo-
tor switches on.
• Motor overload
• Motor driver defective
SC600: Data Communication
621 D
BICU/Finisher communication/break error
During communication with the finisher
MBX, the BICU received a break (Low)
signal from the finisher.
• Serial line connection unstable
• External noise on the line
623 D
BICU/Tray 1~4 communication/timeout error
After 1 data frame is sent to the trays,
an ACK signal is not received within
100 ms, and is not received after 3 re-
tries.
• Serial line connection unstable
• External noise on the line
624 D
BICU/Tray 1~4 communication/break reception error
During communication with the finisher
trays, the BICU received a break (Low)
signal.
• Serial line connection unstable
• External noise on the line
626 D
BICU/LCT communication/timeout error
Service Mode
263
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