This section describes the main restrictions of printer driver.
Usage Restrictions of the lpr and cngpij commands
1. If there is an error in the parameter for the specified option in the lpr command, the operation may be different depending on the option. The print job will be terminated forcibly without any warning if the option is other than PageSize, MediaType, or InputSlot.
Example of an option parameter error (case in which job is not forcibly terminated)
lpr -P MX340USB sample.ps -o MediaType=plan -o CNQuality=2
2. If you print an image file directly with the lpr or cngpij command, the image may be printed on the multiple pages. If this happens, adjust the image size.
3. CUPS places a PostScript file at the bottom left corner of the print area and converts the file as defined by the PostScript file if you print the PostScript file with the lpr or cngpij command. If the size of the PostScript file is larger than the Page Size, the protruded area will not be printed.
Restriction of the Status Monitor
When you use the machine through a USB connection, the status monitor has the following restrictions:
1. The status is not displayed until printing starts.
If printing has not been started when the Status Monitor is started, only the "Ready" message is displayed because status information cannot be obtained.
2. The Status Monitor does not detect whether the machine power is off. If the machine power is turned off, the Status Monitor does not display a message that indicates the printer status.
3. If the Status Monitor is started with a user privilege that differs from that of the user who executed the print job, the monitor can be started, but the Status Monitor information related to that job cannot be obtained (the status remains "Ready").
4. The Status Monitor may not be displayed properly if the LAN environment has been configured and the IP address has been specified on your computer.
If such is the case, you must change the CUPS security setting.
Add the specified IP address in the following section in /etc/cups/cupsd.conf and restart the CUPS daemon.
<Location />
<Location /admin>
Example:
:
:
<Location />
Order allow,deny
Allow localhost
Allow From XXX.XXX.XXX.XXX <- Add the specified IP address in this row.
</Location>
:
:
<Location /admin>
:
:
Order allow,deny
Allow localhost
Allow From XXX.XXX.XXX.XXX <- Add the specified IP address in this row.
:
:
</Location>
Where, XXX.XXX.XXX.XXX is the specified IP address.
For information about the security settings for network, see the homepage for the Common UNIX Printing System (http://www.cups.org/).