Xerox ColorQube 9303 Series, Service Manual, Page: 306 / 1812

February 2013
2-282 ColorQube® 9303 Family
20G, 20H
Status Indicator RAPs
20G Fax Module Checkout
Use this RAP to check for problems with the fax module.
Initial Actions
WARNING
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to
GP 14 . Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
• Switch off the machine, then switch on the machine, GP 14 .
• Check that the embedded fax PWB, PL 20.05 Item 4 is located correctly.
• Check that the fax module is correctly grounded.
• For copy quality defects, go to IQ 27 Unacceptable Received Fax Image Quality RAP.
Procedure
Go to WD 3.2 and WD 3.1 . Check the +3.3V, +5V and +12V voltages. The voltages are
good.
Y
N
Refer to the following:
•
01C +3.3V Distribution RAP
• 01D +5V Distribution RAP
• 01E +12V Distribution RAP
• 01L 0V Distribution RAP
Install a new components as required.
Switch off the machine GP 14 . Disconnect the following:
• The Fax module from the fax connector PWB, PL 20.05 .
• The Fax connector PWB ribbon cable from the single board controller PWB, PL 3.11 .
Check that the connectors are clean and not damaged. If the connectors are damaged then
install new components as necessary:
•
Fax connector PWB, PL 20.05 Item 2 .
• Fax module, PL 20.05 Item 1 .
• Fax connector PWB ribbon cable, PL 3.11 Item 7
• Single board controller PWB, PL 3.11 Item 13 .
Reconnect the following:
•
The Fax connector PWB ribbon cable to the single board controller PWB.
• The fax module to the fax connector PWB.
Switch on the machine, GP 14 . The fault is cleared.
Y N
Return to the original fault code RAP and perform the remaining actions in the procedure.
Go to SCP 5 and perform the final actions.
20H Fax Problems on Digital Networks RAP
Use this RAP to isolate the problem when using digital networks.
The Fax option was designed as an analogue Group 3 device. This will have the best perfor-
mance when connected to a dedicated analog phone PSTN (Public Switched Telephone Net-
work) line or POTS (Plain Old Telephone system).
• The Fax option will function on the following technologies:
– ADSL - Asymmetric Digital Subscriber Line
– DSL - Digital Subscriber Line
– VOIP - Voice Over Internet Protocol
– FOIP - Fax Over Internet Protocol, (T.38 protocol).
– T1 Trunk / E1 Trunk (Europe).
NOTE: Due to the compression used on the technologies. The level of performance
will be lower than on a PSTN or POTS.
• The Fax option will not function on the following technology:
– ISDN - Integrated Services Digital Network
Initial Actions
WARNING
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to
GP 14 . Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
• Switch off the machine, then switch on the machine, GP 14 .
• Check with the customer or IT person on what network the Fax service is being used and
what is the quality of service.
• Check that an analogue adapter or a connection for analogue terminals are available.
• Ask the customer to check with service provider that an analogue port for Fax service has
been provided and enabled.
Procedure
Perform the steps that follow:
• Go to 20A Fax Entry RAP.
• Request the latest SPAR release.
• Disable V34.
Enter dC131 NVM Read / Write and reset the value at the following locations:
– NVM ID 200-087 T30MaxSpeedL1Tx = 11 (14400)
– NVM ID 200-088 T30MaxSpeedL2Tx = 11 (14400)
– NVM ID 200-089 T30MaxSpeedL1Rx = 11 (14400)
– NVM ID 200-090 T30MaxSpeedL2Rx = 11 (14400)
– NVM ID 203-105 V34toV21FallbackTime = 20
• If problems are still not resolved after these actions, then escalate the problem using the
normal escalation process