Messages sent to stderr are generally logged to the current <i>ErrorLog</i>.
Each line begins with a standard prefix:
-<p style="margin-left: 5.0em; text-indent: -5.0em">ALERT: message
-<br>
-<br>
+<dl class="man">
+<dt>ALERT: message
+<dd style="margin-left: 5.0em"><br>
Sets the printer-state-message attribute and adds the specified
message to the current <i>ErrorLog</i> using the "alert" log level.
-<p style="margin-left: 5.0em; text-indent: -5.0em">CRIT: message
-<br>
-<br>
+<dt>CRIT: message
+<dd style="margin-left: 5.0em"><br>
Sets the printer-state-message attribute and adds the specified
message to the current <i>ErrorLog</i> using the "critical" log level.
-<p style="margin-left: 5.0em; text-indent: -5.0em">DEBUG: message
-<br>
-<br>
+<dt>DEBUG: message
+<dd style="margin-left: 5.0em"><br>
Sets the printer-state-message attribute and adds the specified
message to the current <i>ErrorLog</i> using the "debug" log level.
-<p style="margin-left: 5.0em; text-indent: -5.0em">DEBUG2: message
-<br>
-<br>
+<dt>DEBUG2: message
+<dd style="margin-left: 5.0em"><br>
Sets the printer-state-message attribute and adds the specified
message to the current <i>ErrorLog</i> using the "debug2" log level.
-<p style="margin-left: 5.0em; text-indent: -5.0em">EMERG: message
-<br>
-<br>
+<dt>EMERG: message
+<dd style="margin-left: 5.0em"><br>
Sets the printer-state-message attribute and adds the specified
message to the current <i>ErrorLog</i> using the "emergency" log level.
-<p style="margin-left: 5.0em; text-indent: -5.0em">ERROR: message
-<br>
-<br>
+<dt>ERROR: message
+<dd style="margin-left: 5.0em"><br>
Sets the printer-state-message attribute and adds the specified
message to the current <i>ErrorLog</i> using the "error" log level.
-<p style="margin-left: 5.0em; text-indent: -5.0em">INFO: message
-<br>
-<br>
+<dt>INFO: message
+<dd style="margin-left: 5.0em"><br>
Sets the printer-state-message attribute. If the current <i>LogLevel</i>
is set to "debug2", also adds the specified message to the
current <i>ErrorLog</i> using the "info" log level.
-<p style="margin-left: 5.0em; text-indent: -5.0em">NOTICE: message
-<br>
-<br>
+<dt>NOTICE: message
+<dd style="margin-left: 5.0em"><br>
Sets the printer-state-message attribute and adds the specified
message to the current <i>ErrorLog</i> using the "notice" log level.
-<p style="margin-left: 5.0em; text-indent: -5.0em">WARNING: message
-<br>
-<br>
+<dt>WARNING: message
+<dd style="margin-left: 5.0em"><br>
Sets the printer-state-message attribute and adds the specified
message to the current <i>ErrorLog</i> using the "warning" log level.
+</dl>
<h2 class="title"><a name="ENVIRONMENT_VARIABLES">Environment Variables</a></h2>
The following environment variables are defined by the CUPS server when
executing the notifier:
-<p style="margin-left: 5.0em; text-indent: -5.0em">CHARSET
-<br>
-<br>
+<dl class="man">
+<dt>CHARSET
+<dd style="margin-left: 5.0em"><br>
The default text character set, typically utf-8.
-<p style="margin-left: 5.0em; text-indent: -5.0em">CUPS_CACHEDIR
-<br>
-<br>
+<dt>CUPS_CACHEDIR
+<dd style="margin-left: 5.0em"><br>
The directory for semi-persistent cache files can be found.
-<p style="margin-left: 5.0em; text-indent: -5.0em">CUPS_DATADIR
-<br>
-<br>
+<dt>CUPS_DATADIR
+<dd style="margin-left: 5.0em"><br>
The directory where data files can be found.
-<p style="margin-left: 5.0em; text-indent: -5.0em">CUPS_FILETYPE
-<br>
-<br>
+<dt>CUPS_FILETYPE
+<dd style="margin-left: 5.0em"><br>
The type of file being printed: "job-sheet" for a banner page and "document"
for a regular print file.
-<p style="margin-left: 5.0em; text-indent: -5.0em">CUPS_SERVERROOT
-<br>
-<br>
+<dt>CUPS_SERVERROOT
+<dd style="margin-left: 5.0em"><br>
The root directory of the server.
-<p style="margin-left: 5.0em; text-indent: -5.0em">LANG
-<br>
-<br>
+<dt>LANG
+<dd style="margin-left: 5.0em"><br>
The default language locale (typically C or en).
-<p style="margin-left: 5.0em; text-indent: -5.0em">PATH
-<br>
-<br>
+<dt>PATH
+<dd style="margin-left: 5.0em"><br>
The standard execution path for external programs that may be run by
the filter.
-<p style="margin-left: 5.0em; text-indent: -5.0em">SOFTWARE
-<br>
-<br>
+<dt>SOFTWARE
+<dd style="margin-left: 5.0em"><br>
The name and version number of the server (typically CUPS/1.2).
-<p style="margin-left: 5.0em; text-indent: -5.0em">TZ
-<br>
-<br>
+<dt>TZ
+<dd style="margin-left: 5.0em"><br>
The timezone of the server.
-<p style="margin-left: 5.0em; text-indent: -5.0em">USER
-<br>
-<br>
+<dt>USER
+<dd style="margin-left: 5.0em"><br>
The user executing the filter, typically "lp"; consult the <i>cupsd.conf(5)</i>
file for the current setting.
+</dl>
<h2 class="title"><a name="SEE_ALSO">See Also</a></h2>
<i>backend(7)</i>, <i>cupsd(8)</i>, <i>filter(7)</i>,
<br>