opa
eu já tive varios problemas com o cups, eu te aconselho a remover o pacote
sudo apt-get remove cups
e depois instale novamente
sudo apt-get install cups ele vai pedir que se vc manter os pacotes, ou remover selecione a opção Y.
após isso
edite o arquivo do cups.conf pois terá que compartilhar a impressora senão não imprime mesmo vc pode fazer de duas formas :
sudo vim /etc/cups/cups.conf ou acesse
http://127.0.0.1:631/admin e clica em " edit configuration file" e cole isso
#
#
#Sample configuration file for the Common UNIX Printing System (CUPS)
#scheduler. See "man cupsd.conf" for a complete description of this
#file.
#
#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 631
Listen /var/run/cups/cups.sock
#Show shared printers on the local network.
Browsing On
BrowseAllow All
BrowseInterval 30
BrowseAddress @LOCAL
BrowseInterval 30
#Default authentication type, when authentication is required...
DefaultAuthType Basic
<Location />
Order allow,deny
Allow all
</Location>
<Location /printers>
Order allow,deny
Allow all
</Location>
#Restrict access to the server...
<Location />
Order allow,deny
</Location>
#Restrict access to the admin pages...
#<Location /admin>
# Order allow,deny
#</Location>
#Restrict access to configuration files...
<Location /admin/conf>
AuthType Default
Require user @SYSTEM
Order allow,deny
</Location>
#Set the default printer/job policies...
<Policy default>
#Job-related operations must be done by the owner or an administrator...
<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 administrator to authenticate...
<Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default>
AuthType Default
Require user @SYSTEM
Order deny,allow
</Limit>
#All printer operations require a printer operator to authenticate...
<Limit Pause-Printer Resume-Printer 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-Accept-Jobs CUPS-Reject-Jobs>
AuthType Default
Require user @SYSTEM
Order deny,allow
</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>
#
#
se vc usar a pagina web clica em "Save Changes"
ou o se editar pelo Terminal salve, não precisa ser o editor vim poder outro de sua preferencia.
Qualquer coisa posta ai...