Cara, coloquei meu cups.conf aqui. Eu consigo fazer tudo pela interface WWW. O único problema é que ele não pede senha. Aqui isso não é muito problema porque é uma rede caseira com apenas três micros.
Boa sorte!
#
#
# Sample configuration file for the Common UNIX Printing System (CUPS)
# scheduler. See "man cupsd.conf" for a complete description of this
# file.
#
BrowsePoll UbuntuServer:631
Port 631
BrowseAllow 192.168.200.*
BrowseDeny All
# Log general information in error_log - change "info" to "debug" for
# troubleshooting...
LogLevel warning
# Administrator user group...
SystemGroup lpadmin
# Only listen for connections from the local machine.
Listen localhost:631 192.168.200.1:631
Listen /var/run/cups/cups.sock
# Show shared printers on the local network.
Browsing Off
BrowseOrder allow,deny
BrowseAllow 192.168.200.*
#BrowseAllow @LOCAL
#BrowseAddress @LOCAL
# Default authentication type, when authentication is required...
DefaultAuthType Basic
# Restrict access to the server...
<Location />
Order allow,deny
Allow localhost
Allow @LOCAL
# Allow From 127.0.0.1 192.168.200.1 192.168.200.2
Allow From 192.168.200.*
</Location>
# Restrict access to the admin pages...
#<Location /admin>
# Order allow,deny
# Allow localhost
#</Location>
# Restrict access to configuration files...
#<Location /admin/conf>
# AuthType Basic
# Require user @SYSTEM
# Order allow,deny
# Allow localhost
#</Location>
<Location /admin>
#AuthType BasicDigest
AuthType None
#AuthClass Group
#AuthGroupName lpadmin
Order Deny,Allow
Allow From 127.0.0.1
Allow From 192.168.200.*
</Location>
# Set the default printer/job policies...
<Policy default>
# Job-related operations must be done by the owner or an adminstrator...
<Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job CUPS-Move-Job>
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
# All administration operations require an adminstrator to authenticate...
<Limit Pause-Printer Resume-Printer Set-Printer-Attributes Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After CUPS-Add-Printer CUPS-Delete-Printer CUPS-Add-Class CUPS-Delete-Class CUPS-Accept-Jobs CUPS-Reject-Jobs CUPS-Set-Default>
AuthType Basic
Require user @SYSTEM
Order deny,allow
#AuthType BasicDigest
#AuthClass Group
#AuthGroupName lpadmin
#Order Deny,Allow
#Allow From 127.0.0.1
#Allow From 192.168.200.*
</Limit>
# Only the owner or an administrator can cancel or authenticate a job...
<Limit Cancel-Job CUPS-Authenticate-Job>
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
<Limit All>
Order deny,allow
</Limit>
</Policy>
#
#