Troubleshooting
Xerox Internal Use Only Phaser 3330 and WorkCentre 3335/3345
Service Manual
2-71
Fax Communication and Configuration Warnings
Fax Comm Error
During a Fax operation a communication error occurred.
Applicable Error
• 20-100: Communication Error
Initial Actions
• Call the target Fax number from a telephone to confirm a Fax tone response. Check also for
interference or noise that would point to a poor quality line or connection.
• Check Fax harness between the modem and the wall connection for condition and connection.
• Turn the printer off and then on again.
• Verify the Fax line is an ANALOG phone line
• If the problem persists continue troubleshooting.
Troubleshooting Reference Table
Troubleshooting Procedure Table
Applicable Parts Wiring and Plug/Jack Map Reference
• Fax Board, (PL 6.2.1, Parts List 6.2
WorkCentre 3335/3345 Middle Cover).
• Main PWB, (PL 6.1.7, Parts List 6.1
WorkCentre 3335/3345 Main).
• Phaser 3330 Main PWB Connector Designators
• Phaser 3330 Control Panel PWB
• Wiring Diagrams for P3330/WC3335/WC3345
• WorkCentre 3335/3345 Main PWB Connector Designators
•DADF PWB
•SMPS PWB
Step Actions and Questions Yes No
1. Turn the machine off then on.
Does the error persist?
Go to step 2. Complete.
2. Check the Country setting in the Main Menu
Configuration Menu.
Is the Country setting correct?
Go to step 3. Correct the Country
setting.
3. Check Fax communications to a different
machine.
Does the error persist?
Go to step 4. Complete.
4. Enter Service Diagnostics and print the
Event Log.
Is the target Fax causing the error?
Check target Fax
configuration.
Go to step 5.
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