Ricoh MP C6502 series Operation Manual page 274

10. Troubleshooting
Message
"Cannot find "XXX" scanner
used for the previous scan.
"YYY" will be used instead."
("XXX" and "YYY" indicate
scanner names.)
"Communication error has
occurred on the network."
"Scanner is not available.
Check the scanner
connection status."
"Scanner is not available.
Check the scanner
connection status."
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Causes
The machine is not
connected to the network
correctly.
A communication error has
occurred on the network.
The machine's power is off.
The machine is not
connected to the network
correctly.
Solutions
• Check that the previously used
scanner is connected to the
network correctly.
• Cancel the personal firewall of
the client computer. For details
about firewall, see Windows
Help.
• Use an application such as telnet
to make sure SNMPv1 or
SNMPv2 is set as the machine's
protocol. For details about how to
check this, see "Remote
Maintenance Using telnet",
Connecting the Machine/ System
Settings .
• Select the scanner used for the
previous scan.
Check whether the client computer can
use the TCP/IP protocol.
Turn on the power.
• Check whether the machine is
connected to the network
correctly.
• Deselect the personal firewall
function of the client computer.
For details about firewall, see
Windows Help.
• Use an application such as telnet
to make sure SNMPv1 or
SNMPv2 is set as the machine's
protocol. For details about how to
check this, see "Remote
Maintenance Using telnet",
Connecting the Machine/ System
Settings .