Xerox Phaser 8860, Service Manual

Page: 267 / 316

09/2007
6-47 Phaser 8860/8860MFP Service Manual
Fax Troubleshooting, Remote Fax Does Not Ring
Diagnostics Initial Issue
Fax Troubleshooting Procedures
The following provides procedures and suggestions for correcting some common problems.
1. Disable Junk Fax Prevention. This may prevent a Fax being received because the
machine does not recognize the sending phone number as an acceptable source. Junk
Fax Prevention compares the incoming caller Fax Machine ID with ones listed in the Dial
Directory. When not finding a match, the Fax refuses the transmission.
2. Check the phone line. Especially if problems occur during receive and transmit. Does the
provider support Fax protocol? Is there noise on the phone line? Is the phone line con-
nected correctly? Is call forwarding on? Is 'Secure Send or Receive' on? All these effect
Fax transmission.
In the case of DSL, most DSL configurations share the same phone line with analog sig-
nals used by standard phones and dial-up (analog) modems. Typically a filter is installed
between the DSL equipment and the analog equipment attached to that line. DSL Perfor-
mance varies based on the quality and configuration of the specific site and equipment.
3. Reduce transmission speed. The 8860/8860MFP uses 33.6 kbps by default. Some phone
lines and older Fax machines do not support these speeds.
Remote Fax Does Not Ring
This procedure describes troubleshooting techniques for situations in which the remote Fax
machine will not ring.
Initial Actions
• Check that Fax is enabled and configured properly for the local phone line.
• Check the target Fax number. If the number is in memory, is it saved correctly?
• Call the target Fax number from a desk phone and confirm a Fax tone response.
• Check Fax cord condition and connections between the system and Fax line.
Primary Causes
The Fax configuration for the line type is set to Tone dialing when the line is a Pulse type, or the
number is being dialed faster than the exchange can process it.
NOTE: Dial Delay is intended for use when the line is too noisy to reliably detect a dial tone.
When in use, Dial Delay ignores any line noise, such as a busy signal, and dials the number
after the specified delay interval.
Troubleshooting Procedure
Table 1 Remote Fax Does Not Ring Troubleshooting Procedure
Step Questions or Actions Yes No
1 Test the Fax line dialing type using a
phone connected to the same line.
Is the Fax configured correctly for the line
type? Go to Step 2. Change the configu-
ration to the correct
line type.
2 Test the remote Fax connection.
Does the remote Fax machine ring when
called with the phone on the same line? Go to Step 3. Check the remote
Fax number.
3 Check dialing activity using the system
speaker.
Does the system Fax dial? Go to Step 4. Replace the Elec-
tronics Module (
REP
5.0.5 ).
4 Test the Fax on a local machine.
Send a test Fax to a local machine.
Does the local machine ring? Go to Step 5. Replace the Elec-
tronics Module (
REP
5.0.5 ).
5 Insert a dialing pause following the exter-
nal access number that precedes the Fax
number on many office phone systems.
Use the Pause button to insert a pause
(represented by a comma) in the fax num-
ber.
Does the remote machine ring? Complete. Select a different
access point and
retest the connec-
tion.