Ricoh B291 Service Manual page 233

599 D 1-Bin tray motor lock
A 1-bin tray motor lock signal is not
detected for more than 300 ms during
rotation.
601 D Communication error between BICU and
scanner unit
Within 800 ms after power on, after 3
attempts the BICU does not
communicate with the SIB via the serial
line.
610 D Communication timeout error between
BICU and ADF
The BICU cannot receive a response
within 100 ms after 3 attempts after
sending data to the ARDF.
611 D Communication break error between
BICU and ADF
The BICU receives a break signal from
the ADF main board.
612 D Communication command error
between BICU and ADF
The BICU sends a command to the ADF
main board that it cannot execute.
620 D Communication timeout error between
BICU and finisher or mailbox
The BICU cannot receive a response
within 100 ms after 3 attempts after
sending data to the finisher or mailbox.
621 D Communication timeout error between
BICU and finisher or mailbox
A break (low) signal was received from
the finisher or the mailbox.
623 D Communication timeout error between
BICU and paper tray unit
The BICU cannot receive a response
within 100 ms after 3 attempts after
sending data to the paper tray unit.
624 D Communication break error between
BICU and paper tray unit
The BICU cannot communicate with the
paper tray unit normally as a result of
receiving a break signal.
SM
CÓPIA NÃO CONTROLADA
• 1-bin tray motor locked from overload
• 1-bin tray motor defective
• 1-bin tray motor connection loose
4-11
CÓPIA NÃO CONTROLADA
SERVICE CALL CONDITIONS
• Serial line connecting the BICU and
SIB defective
• External noise on the serial line
• SIB board defective
• BICU board defective
• BICU board and ADF main board
serial line connection defective
• External noise
• ADF main board defective
• BICU board defective
• Serial line connecting BICU and
ADF unstable
• External noise
• ADF main board defective
• BICU board defective
• Abnormal operation performed by
software
• Serial line connecting BICU and
finisher unstable
• External noise
• BICU board and finisher main board
connection defective or loose
• Finisher main board defective
• BICU board defective
• Serial line connecting BICU and
finisher unstable
• External noise
• Serial line connecting BICU and
paper tray unit unstable
• External noise
• BICU board and paper tray main
board connection defective or loose
• Paper tray main board defective
• BICU board defective
• Serial line connecting BICU and
paper tray unit unstable
• External noise
• BICU board and LCT main board
connection defective or loose
• Optional paper feed unit interface
board defective
• BICU board defective
B291/B295/B296/B297