Ricoh Pro C7200S Troubleshooting Manual page 128

1.SC Codes
SC No. Level
SC No. Level
SC619- D Downstream Device Communication Error (Buffer Pass Unit)
00 





SC No. Level
SC620- D ADF Communication Error
01
SC620- D ADF Communication Error
02
Communication error between the main machine and ADF connected with ASAP.
SC620-01: A BREAK was detected after a successful connection.
SC620-02: Communication timeout after a successful connection.
Details:
SC is issued when an error is detected after ADF connection was recognized at
power-on.
There will be no response either, if the ADF was not connected at power-on. In this
case, however, SC is not issued and functions that do not use the ADF (copying
from the exposure glass) are available.




124
Error Name/Error Condition/Major Cause/Solution

Reconnect the connectors.

Replace the harnesses.

Replace the motor/fan.

Replace the Controller Board of Buffer Pass Unit
Error Name/Error Condition/Major Cause/Solution
When communication has been established with downstream devices and
there is no response to the transmission command, not even after repeating
the command 3 times.
When communication has been established with upstream devices and the
transmission port level for the downstream devices does not turn to H level
(break release) within the time limit.
I/F cable (downstream device side) connector loose/disconnected
Board malfunction (Buffer Pass Unit or downstream device)
Replace I/F cable between Buffer Pass Unit and downstream device. Reset
connector.
Replace board (Buffer Pass Unit or downstream device)
Error Name/Error Condition/Major Cause/Solution
ADF connection fault.
ADF defective
IPU board defective
Electrical noise on the line