Ricoh D131 Service Manual page 508

Engine serial communication error
An error occurs in serial communication with engine.

SC641 D




SC650 B @Remote communication error (Cumin-M)
The authentication for the Cumin-M fails failed at a dial up connection
due to one or more of the following:

Incorrect SP settings

Disconnected telephone line
01

Disconnected modem board

Disconnected wireless LAN card

Check and set the correct user name (SP5-816-156) and password
(SP5-816-157).
Communication line error
The supplied voltage is not sufficient due to the defective
communication line or defective connection.
The authentication for the Cumin-M fails failed at a dial up connection
due to one or more of the following:
04

Incorrect SP settings

Disconnected telephone line

Disconnected modem board

Disconnected wireless LAN card

Check and set the correct user name (SP5-816-156) and password
(SP5-816-157).
05 No modem board
SM Appendix
SC641-1: Timeout error
SC641-2: Retry over
SC641-3: Download error
SC641-4: UART error
Cycle the machine off/on
2-41
SC600: Data Communication
CTL
CTL
D131/D132/D133