Ricoh B291 Service Manual page 234

SERVICE CALL CONDITIONS
626 D Communication timeout error between
BICU and LCT
The BICU cannot receive a response
within 100 ms after 3 attempts after
sending data to the LCT.
627 D Communication break error between
BICU and LCT
The BICU cannot communicate with the
LCT unit normally as a result of
receiving a break signal.
630 D Communication failure with CSS (RSS)
The communication from the copier was
detected as abnormal at the CSS
center. This error occurs when the
acknowledge signal from the LADP does
not complete normally.
632 B Key/card counter device error 1
After 1 data frame is sent to the device,
an ACK signal is not received within 100
ms, and is not received after 3 retries.
633 B Key/card counter device error 2
During communication with the device,
the BCU received a break (Low) signal.
634 B Key/card counter device error 3
The backup battery of the counter
device RAM is low.
635 B Key/card counter device error 4
After installation of the device a
message alerts user to a battery voltage
abnormal error.
640 C BICU-to-Controller Data Transfer Error 1: Sum Check Error
The system detected an error during
sum check for data transfer from the
BICU to the controller board.
Note: This error is simply logged and the
machine does not return an error
number on the display.
641 C BICU-to-Controller Data Transfer Error 2: Frame Error
The system detected an error after data
was sent from the BICU to the controller
board.
B291/B295/B296/B297
CÓPIA NÃO CONTROLADA
4-12
CÓPIA NÃO CONTROLADA
• Serial line connecting BICU and
LCT unit unstable
• External noise
• BICU board and LCT main board
connection defective or loose
• LCT interface board defective
• BICU board defective
• Serial line connecting BICU and
LCT unit unstable
• External noise
• BICU board and LCT main board
connection defective or loose
• LCT interface board defective
• BICU board defective
• Occurred with a SC call, CC call,
Supply Management call, User call,
or CE call.
• Timeout while no response from the
LADP, and signal on the RS-485
line between PI and LADP is
abnormal.
• The serial line from the device to the
copier is unstable, disconnected, or
defective.
• The serial line from the device to the
copier is unstable, disconnected, or
defective.
• Replace the RAM backup battery.
• Device control board defective
• Device control board backup battery
defective
• No action required
• The log count increments by one for
every error
• No action required
• The log count increments by one for
every error
SM