HP LaserJet Enterprise M4555 MFP series - Manual (Page 259)

Any error that takes place during the fax process regardless of where it originates will be displayed by
the product.
If the fax process is interrupted or an error occurs during a fax transmission or reception, a two part
status/error description is generated by the fax subsystem on the product. Normal or successful faxes
also generate messages indicating success. The message information consists of a text description and
a numeric code (a few messages don’t include numeric codes). Only the text part of the message will
be displayed on the product control panel; however, both the text message and numeric code will be
listed in the fax activity log, fax call report, and the fax T.30 trace (these fax reports can be printed out
individually from the product control panel – under the Administration > Reports > Fax Reports and
Administration > Troubleshooting > Fax > Fax T.30 Trace menus). The numeric code is shown in
parentheses after the text part of the message in the reports. For example, if a communication error
occurred, the control panel display would show Fax Failed: Communication Error. The same
error would be shown in the Result field in the Fax Activity Report as Communication Error (17).
For this example, the numeric code associated with this communication error is ‘17’.
The numeric code is generated by the fax modem. Usually a numeric code of (0) indicates a normal
modem response. Some messages will always display a numeric code of (0), whereas other messages
can have a range of numeric codes depending on the circumstances, and a few messages will have no
numeric code. Usually a numeric code of (0) indicates an error was not associated with the fax modem,
but occurred in another part of the fax subsystem or other product subsystem such as the printing
subsystem. Non-zero error codes give further detail into the particular action or process that the modem
is executing, and they don’t necessarily indicate that there is a problem with the modem.
In the tables that follow, the fax messages with the most common number codes are given with
recommended corrective action. Several messages that are normal or indicate a normal event are also
included in tables. For example, if a fax was not able to be sent to a busy number, a Fail Busy
message will be shown. Nothing is wrong with the fax subsystem; the message indicates the fax was
not completed due to a busy telephone number at the receiving end.
Persistent error messages with numeric codes different than those listed here require assistance of
customer support. A more detailed listing of the last fax call can be printed out before contacting
customer support to help identify the problem. The detailed fax listing is called a fax T.30 trace and
can be printed for the last fax, or it can be set to print whenever a fax error occurs. To print or
configure the fax T.30 trace, touch Administration , Troubleshooting , and then Fax T.30 Trace . You can
then print the report for the last fax or configure when to print the T.30 trace.
ENWW Solve fax problems 239