I'm posting error_log again after activating the debug option in cups. Hope there's some useful info in it:

D [04/Feb/2008:00:42:15 +0000] cupsdReadClient: 18 POST /admin HTTP/1.1
D [04/Feb/2008:00:42:15 +0000] cupsdAuthorize: No authentication data provided.
D [04/Feb/2008:00:42:15 +0000] [CGI] /usr/lib/cups/cgi-bin/admin.cgi started - PID = 21625
I [04/Feb/2008:00:42:15 +0000] Started "/usr/lib/cups/cgi-bin/admin.cgi" (pid=21625)
D [04/Feb/2008:00:42:15 +0000] cupsdSendCommand: 18 file=19
D [04/Feb/2008:00:42:15 +0000] [CGI] admin.cgi started...
D [04/Feb/2008:00:42:15 +0000] [CGI] http=0x80790d0
D [04/Feb/2008:00:42:15 +0000] cupsdAcceptClient: 14 from localhost (Domain)
D [04/Feb/2008:00:42:15 +0000] [CGI] op="config-server"...
D [04/Feb/2008:00:42:15 +0000] [CGI] DefaultAuthType Basic
D [04/Feb/2008:00:42:15 +0000] cupsdReadClient: 14 PUT /admin/conf/cupsd.conf HTTP/1.1
D [04/Feb/2008:00:42:15 +0000] cupsdAuthorize: No authentication data provided.
D [04/Feb/2008:00:42:15 +0000] cupsdIsAuthorized: username=""
D [04/Feb/2008:00:42:15 +0000] cupsdSendError: 14 code=401 (Unauthorized)
D [04/Feb/2008:00:42:15 +0000] cupsdSendHeader: WWW-Authenticate: Basic realm="CUPS"
D [04/Feb/2008:00:42:15 +0000] cupsdCloseClient: 14
D [04/Feb/2008:00:42:15 +0000] [CGI] cgi_passwd(prompt="Password per lp su localhost? ") called!
D [04/Feb/2008:00:42:15 +0000] cupsdSendError: 18 code=401 (Unauthorized)
D [04/Feb/2008:00:42:15 +0000] cupsdSendHeader: WWW-Authenticate: Basic realm="CUPS"
D [04/Feb/2008:00:42:15 +0000] cupsdCloseClient: 18
D [04/Feb/2008:00:42:15 +0000] cupsdReadClient: 9 POST /admin HTTP/1.1
D [04/Feb/2008:00:42:15 +0000] cupsdAuthorize: Authorized as marcopau using Basic
D [04/Feb/2008:00:42:15 +0000] [CGI] /usr/lib/cups/cgi-bin/admin.cgi started - PID = 21626
I [04/Feb/2008:00:42:15 +0000] Started "/usr/lib/cups/cgi-bin/admin.cgi" (pid=21626)
D [04/Feb/2008:00:42:15 +0000] cupsdSendCommand: 9 file=18
D [04/Feb/2008:00:42:15 +0000] PID 21625 (/usr/lib/cups/cgi-bin/admin.cgi) exited with no errors.
D [04/Feb/2008:00:42:15 +0000] [CGI] admin.cgi started...
D [04/Feb/2008:00:42:15 +0000] [CGI] http=0x80790d0
D [04/Feb/2008:00:42:15 +0000] [CGI] op="config-server"...
D [04/Feb/2008:00:42:15 +0000] [CGI] DefaultAuthType Basic
D [04/Feb/2008:00:42:15 +0000] cupsdAcceptClient: 14 from localhost (Domain)
D [04/Feb/2008:00:42:15 +0000] cupsdReadClient: 14 PUT /admin/conf/cupsd.conf HTTP/1.1
D [04/Feb/2008:00:42:15 +0000] cupsdAuthorize: No authentication data provided.
D [04/Feb/2008:00:42:15 +0000] cupsdIsAuthorized: username=""
D [04/Feb/2008:00:42:15 +0000] cupsdSendError: 14 code=401 (Unauthorized)
D [04/Feb/2008:00:42:15 +0000] cupsdSendHeader: WWW-Authenticate: Basic realm="CUPS"
D [04/Feb/2008:00:42:15 +0000] cupsdCloseClient: 14
D [04/Feb/2008:00:42:15 +0000] cupsdAcceptClient: 14 from localhost (Domain)
D [04/Feb/2008:00:42:15 +0000] cupsdReadClient: 14 PUT /admin/conf/cupsd.conf HTTP/1.1
D [04/Feb/2008:00:42:15 +0000] cupsdAuthorize: Authorized as marcopau using Local
D [04/Feb/2008:00:42:15 +0000] cupsdIsAuthorized: username="marcopau"
I [04/Feb/2008:00:42:15 +0000] Installing config file "/etc/cups/cupsd.conf"...
D [04/Feb/2008:00:42:15 +0000] cupsdSendError: 14 code=201 (Created)
D [04/Feb/2008:00:42:15 +0000] cupsdCloseClient: 14
D [04/Feb/2008:00:42:15 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:15 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:16 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:16 +0000] cupsdCloseClient: 9
D [04/Feb/2008:00:42:16 +0000] Saving remote.cache...
I [04/Feb/2008:00:42:16 +0000] Listening to 127.0.0.1:631 (IPv4)
I [04/Feb/2008:00:42:16 +0000] Listening to /var/run/cups/cups.sock (Domain)
I [04/Feb/2008:00:42:16 +0000] Loaded configuration file "/etc/cups/cupsd.conf"
I [04/Feb/2008:00:42:16 +0000] Using default TempDir of /var/spool/cups/tmp...
I [04/Feb/2008:00:42:16 +0000] Configured for up to 100 clients.
I [04/Feb/2008:00:42:16 +0000] Allowing up to 100 client connections per host.
I [04/Feb/2008:00:42:16 +0000] Using policy "default" as the default!
I [04/Feb/2008:00:42:16 +0000] Partial reload complete.
I [04/Feb/2008:00:42:16 +0000] Listening to 127.0.0.1:631 on fd 2...
I [04/Feb/2008:00:42:16 +0000] Listening to /var/run/cups/cups.sock on fd 4...
I [04/Feb/2008:00:42:16 +0000] Resuming new connection processing...
D [04/Feb/2008:00:42:17 +0000] PID 21626 (/usr/lib/cups/cgi-bin/admin.cgi) exited with no errors.
D [04/Feb/2008:00:42:21 +0000] cupsdAcceptClient: 7 from localhost:631 (IPv4)
D [04/Feb/2008:00:42:21 +0000] cupsdReadClient: 7 GET /admin/?OP=redirect HTTP/1.1
D [04/Feb/2008:00:42:21 +0000] cupsdAuthorize: Authorized as marcopau using Basic
D [04/Feb/2008:00:42:21 +0000] [CGI] /usr/lib/cups/cgi-bin/admin.cgi started - PID = 21629
I [04/Feb/2008:00:42:21 +0000] Started "/usr/lib/cups/cgi-bin/admin.cgi" (pid=21629)
D [04/Feb/2008:00:42:21 +0000] cupsdSendCommand: 7 file=8
D [04/Feb/2008:00:42:22 +0000] [CGI] admin.cgi started...
D [04/Feb/2008:00:42:22 +0000] [CGI] http=0x80790d0
D [04/Feb/2008:00:42:22 +0000] [CGI] op="redirect"...
D [04/Feb/2008:00:42:22 +0000] cupsdAcceptClient: 10 from localhost (Domain)
D [04/Feb/2008:00:42:22 +0000] PID 21629 (/usr/lib/cups/cgi-bin/admin.cgi) exited with no errors.
D [04/Feb/2008:00:42:22 +0000] cupsdCloseClient: 10
D [04/Feb/2008:00:42:22 +0000] cupsdReadClient: 7 GET /admin HTTP/1.1
D [04/Feb/2008:00:42:22 +0000] cupsdAuthorize: Authorized as marcopau using Basic
D [04/Feb/2008:00:42:22 +0000] [CGI] /usr/lib/cups/cgi-bin/admin.cgi started - PID = 21630
I [04/Feb/2008:00:42:22 +0000] Started "/usr/lib/cups/cgi-bin/admin.cgi" (pid=21630)
D [04/Feb/2008:00:42:22 +0000] cupsdSendCommand: 7 file=8
D [04/Feb/2008:00:42:22 +0000] [CGI] admin.cgi started...
D [04/Feb/2008:00:42:22 +0000] cupsdAcceptClient: 10 from localhost (Domain)
D [04/Feb/2008:00:42:22 +0000] [CGI] http=0x80790d0
D [04/Feb/2008:00:42:22 +0000] [CGI] No form data, showing main menu...
D [04/Feb/2008:00:42:22 +0000] [CGI] /usr/share/cups/drivers/pscript5.dll: Nessun file o directory
D [04/Feb/2008:00:42:22 +0000] cupsdReadClient: 10 POST / HTTP/1.1
D [04/Feb/2008:00:42:22 +0000] cupsdAuthorize: No authentication data provided.
D [04/Feb/2008:00:42:22 +0000] Get-Subscriptions ipp://localhost/
D [04/Feb/2008:00:42:22 +0000] Get-Subscriptions client-error-not-found: No subscriptions found.
D [04/Feb/2008:00:42:22 +0000] cupsdProcessIPPRequest: 10 status_code=406 (client-error-not-found)
D [04/Feb/2008:00:42:22 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:22 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:22 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:22 +0000] cupsdCloseClient: 10
D [04/Feb/2008:00:42:22 +0000] PID 21630 (/usr/lib/cups/cgi-bin/admin.cgi) exited with no errors.
D [04/Feb/2008:00:42:33 +0000] cupsdReadClient: 7 GET /printers/ HTTP/1.1
D [04/Feb/2008:00:42:33 +0000] cupsdAuthorize: Authorized as marcopau using Basic
D [04/Feb/2008:00:42:33 +0000] [CGI] /usr/lib/cups/cgi-bin/printers.cgi started - PID = 21633
I [04/Feb/2008:00:42:33 +0000] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=21633)
D [04/Feb/2008:00:42:33 +0000] cupsdSendCommand: 7 file=8
D [04/Feb/2008:00:42:33 +0000] cupsdAcceptClient: 10 from localhost (Domain)
D [04/Feb/2008:00:42:33 +0000] cupsdReadClient: 10 POST / HTTP/1.1
D [04/Feb/2008:00:42:33 +0000] cupsdAuthorize: No authentication data provided.
D [04/Feb/2008:00:42:33 +0000] CUPS-Get-Default
D [04/Feb/2008:00:42:33 +0000] cupsdProcessIPPRequest: 10 status_code=0 (successful-ok)
D [04/Feb/2008:00:42:33 +0000] [CGI] show_all_printers(http=0x80761d0, user="marcopau")
D [04/Feb/2008:00:42:33 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:33 +0000] cupsdReadClient: 10 POST / HTTP/1.1
D [04/Feb/2008:00:42:33 +0000] cupsdAuthorize: No authentication data provided.
D [04/Feb/2008:00:42:33 +0000] CUPS-Get-Printers
D [04/Feb/2008:00:42:33 +0000] cupsdProcessIPPRequest: 10 status_code=0 (successful-ok)
D [04/Feb/2008:00:42:33 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:33 +0000] cupsdCloseClient: 10
D [04/Feb/2008:00:42:33 +0000] PID 21633 (/usr/lib/cups/cgi-bin/printers.cgi) exited with no errors.
D [04/Feb/2008:00:42:33 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:33 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:33 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:33 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:33 +0000] [CGI] lang="it_IT.UTF-8", locale="/it_IT"...
D [04/Feb/2008:00:42:43 +0000] cupsdAcceptClient: 8 from localhost (Domain)
D [04/Feb/2008:00:42:43 +0000] cupsdReadClient: 8 POST / HTTP/1.1
D [04/Feb/2008:00:42:43 +0000] cupsdAuthorize: No authentication data provided.
D [04/Feb/2008:00:42:43 +0000] CUPS-Get-Printers
D [04/Feb/2008:00:42:43 +0000] cupsdProcessIPPRequest: 8 status_code=0 (successful-ok)
D [04/Feb/2008:00:42:43 +0000] cupsdReadClient: 8 POST / HTTP/1.1
D [04/Feb/2008:00:42:43 +0000] cupsdAuthorize: No authentication data provided.
D [04/Feb/2008:00:42:43 +0000] CUPS-Get-Classes
D [04/Feb/2008:00:42:43 +0000] cupsdProcessIPPRequest: 8 status_code=0 (successful-ok)
D [04/Feb/2008:00:42:43 +0000] cupsdReadClient: 8 POST / HTTP/1.1
D [04/Feb/2008:00:42:43 +0000] cupsdAuthorize: No authentication data provided.
D [04/Feb/2008:00:42:43 +0000] CUPS-Get-Default
D [04/Feb/2008:00:42:43 +0000] cupsdProcessIPPRequest: 8 status_code=0 (successful-ok)
D [04/Feb/2008:00:42:43 +0000] cupsdCloseClient: 8
D [04/Feb/2008:00:42:47 +0000] cupsdAcceptClient: 8 from localhost (Domain)
D [04/Feb/2008:00:42:47 +0000] cupsdReadClient: 8 POST / HTTP/1.1
D [04/Feb/2008:00:42:47 +0000] cupsdAuthorize: No authentication data provided.
D [04/Feb/2008:00:42:47 +0000] Get-Printer-Attributes ipp://localhost/printers/scx4200
D [04/Feb/2008:00:42:47 +0000] cupsdProcessIPPRequest: 8 status_code=0 (successful-ok)
D [04/Feb/2008:00:42:47 +0000] cupsdReadClient: 8 GET /printers/scx4200.ppd HTTP/1.1
D [04/Feb/2008:00:42:47 +0000] cupsdAuthorize: No authentication data provided.
D [04/Feb/2008:00:42:47 +0000] cupsdCloseClient: 8
D [04/Feb/2008:00:42:50 +0000] cupsdAcceptClient: 8 from localhost (Domain)
D [04/Feb/2008:00:42:50 +0000] cupsdReadClient: 8 POST /printers/scx4200 HTTP/1.1
D [04/Feb/2008:00:42:50 +0000] cupsdAuthorize: No authentication data provided.
D [04/Feb/2008:00:42:50 +0000] Print-Job ipp://localhost/printers/scx4200
D [04/Feb/2008:00:42:50 +0000] print_job: auto-typing file...
D [04/Feb/2008:00:42:50 +0000] add_job: requesting-user-name="marcopau"
D [04/Feb/2008:00:42:50 +0000] Adding default job-sheets values "none,none"...
I [04/Feb/2008:00:42:50 +0000] [Job 93] Adding start banner page "none".
D [04/Feb/2008:00:42:50 +0000] Discarding unused job-created event...
I [04/Feb/2008:00:42:50 +0000] [Job 93] Adding job file of type application/postscript.
I [04/Feb/2008:00:42:50 +0000] [Job 93] Adding end banner page "none".
I [04/Feb/2008:00:42:50 +0000] [Job 93] Queued on "scx4200" by "marcopau".
D [04/Feb/2008:00:42:50 +0000] [Job 93] hold_until = 0
D [04/Feb/2008:00:42:50 +0000] Discarding unused printer-state-changed event...
D [04/Feb/2008:00:42:50 +0000] [Job 93] job-sheets=none,none
D [04/Feb/2008:00:42:50 +0000] [Job 93] banner_page = 0
D [04/Feb/2008:00:42:50 +0000] [Job 93] argv[0]="scx4200"
D [04/Feb/2008:00:42:50 +0000] [Job 93] argv[1]="93"
D [04/Feb/2008:00:42:50 +0000] [Job 93] argv[2]="marcopau"
D [04/Feb/2008:00:42:50 +0000] [Job 93] argv[3]="10 sì come il saggio in suo dittare pone"
D [04/Feb/2008:00:42:50 +0000] [Job 93] argv[4]="1"
D [04/Feb/2008:00:42:50 +0000] [Job 93] argv[5]="PageSize=A4 job-uuid=urn:uuid:53163925-7b04-3d1f-63ed-0a8af0cabf97"
D [04/Feb/2008:00:42:50 +0000] [Job 93] argv[6]="/var/spool/cups/d00093-001"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[0]="CUPS_CACHEDIR=/var/cache/cups"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[1]="CUPS_DATADIR=/usr/share/cups"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[2]="CUPS_DOCROOT=/usr/share/cups/doc-root"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[3]="CUPS_FONTPATH=/usr/share/cups/fonts"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[4]="CUPS_REQUESTROOT=/var/spool/cups"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[5]="CUPS_SERVERBIN=/usr/lib/cups"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[6]="CUPS_SERVERROOT=/etc/cups"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[7]="CUPS_STATEDIR=/var/run/cups"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[8]="PATH=/usr/lib/cups/filter:/usr/bin:/usr/sbin:/bin:/usr/bin"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[9]="SERVER_ADMIN=root@pau"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[10]="SOFTWARE=CUPS/1.3.2"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[11]="TMPDIR=/var/spool/cups/tmp"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[12]="TZ=User defined"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[13]="USER=root"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[14]="CUPS_SERVER=/var/run/cups/cups.sock"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[15]="CUPS_ENCRYPTION=IfRequested"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[16]="IPP_PORT=631"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[17]="CHARSET=utf-8"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[18]="LANG=it_IT"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[19]="PPD=/etc/cups/ppd/scx4200.ppd"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[20]="RIP_MAX_CACHE=8m"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[21]="CONTENT_TYPE=application/postscript"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[22]="DEVICE_URI=mfp:/dev/mfp4"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[23]="PRINTER=scx4200"
D [04/Feb/2008:00:42:50 +0000] [Job 93] envp[24]="FINAL_CONTENT_TYPE=printer/scx4200"
I [04/Feb/2008:00:42:50 +0000] [Job 93] Started filter /usr/lib/cups/filter/pstops (PID 21675)
I [04/Feb/2008:00:42:50 +0000] [Job 93] Started filter /usr/lib/cups/filter/rastertosamsungspl (PID 21676)
I [04/Feb/2008:00:42:50 +0000] [Job 93] Started backend /usr/lib/cups/backend/mfp (PID 21677)
D [04/Feb/2008:00:42:50 +0000] Discarding unused job-state event...
D [04/Feb/2008:00:42:50 +0000] cupsdProcessIPPRequest: 8 status_code=0 (successful-ok)
D [04/Feb/2008:00:42:50 +0000] [Job 93] Page = 595x842; 12,12 to 582,830
D [04/Feb/2008:00:42:50 +0000] [Job 93] slow_collate=0, slow_duplex=0, slow_order=0
D [04/Feb/2008:00:42:50 +0000] [Job 93] Before copy_comments - %!PS-Adobe-3.0
D [04/Feb/2008:00:42:50 +0000] [Job 93] %!PS-Adobe-3.0
D [04/Feb/2008:00:42:50 +0000] [Job 93] %%BoundingBox: (atend)
D [04/Feb/2008:00:42:50 +0000] [Job 93] %%Creator: (OpenOffice.org 2.3)
D [04/Feb/2008:00:42:50 +0000] [Job 93] %%For: (marcopau)
D [04/Feb/2008:00:42:50 +0000] [Job 93] %%CreationDate: (Mon Feb  4 01:42:49 2008)
D [04/Feb/2008:00:42:50 +0000] [Job 93] %%LanguageLevel: 3
D [04/Feb/2008:00:42:50 +0000] [Job 93] %%DocumentData: Clean7Bit
D [04/Feb/2008:00:42:50 +0000] [Job 93] %%Pages: (atend)
D [04/Feb/2008:00:42:50 +0000] [Job 93] %%PageOrder: Ascend
D [04/Feb/2008:00:42:50 +0000] [Job 93] %%EndComments
D [04/Feb/2008:00:42:50 +0000] [Job 93] Before copy_prolog - %%BeginProlog
D [04/Feb/2008:00:42:50 +0000] [Job 93] Before copy_setup - %%BeginSetup
D [04/Feb/2008:00:42:50 +0000] [Job 93] /var/tmp/rastertosamsungspl.log file open error
D [04/Feb/2008:00:42:50 +0000] [Job 93] ExecProgramV: 'gs' '-dNOPAUSE' '-dBATCH' '-dSAFER' '-q' '-sOutputFile=-' '-sDEVICE=pbmraw' '-r600x600' '-dDEVICEWIDTHPOINTS=595' '-dDEVICEHEIGHTPOINTS=842' '-dFIXEDMEDIA' '-'
D [04/Feb/2008:00:42:50 +0000] [Job 93] Child PID for gs is 21680
D [04/Feb/2008:00:42:51 +0000] [Job 93] Before page loop - %%Page: 1 1
D [04/Feb/2008:00:42:51 +0000] [Job 93] Copying page 1...
D [04/Feb/2008:00:42:51 +0000] [Job 93] pagew = 570.0, pagel = 817.0
D [04/Feb/2008:00:42:51 +0000] [Job 93] bboxw = 595, bboxl = 842
D [04/Feb/2008:00:42:51 +0000] [Job 93] PageLeft = 12.5, PageRight = 582.5
D [04/Feb/2008:00:42:51 +0000] [Job 93] PageTop = 829.5, PageBottom = 12.5
D [04/Feb/2008:00:42:51 +0000] [Job 93] PageWidth = 595.0, PageLength = 842.0
D [04/Feb/2008:00:42:51 +0000] [Job 93] Wrote 1 pages...
D [04/Feb/2008:00:42:51 +0000] PID 21675 (/usr/lib/cups/filter/pstops) exited with no errors.
D [04/Feb/2008:00:42:52 +0000] cupsdCloseClient: 8
D [04/Feb/2008:00:42:52 +0000] [Job 93] Unable to open MFP port device file!: Input/output error
E [04/Feb/2008:00:42:52 +0000] PID 21677 (/usr/lib/cups/backend/mfp) stopped with status 2!
D [04/Feb/2008:00:42:52 +0000] [Job 93] linewidth = 620
D [04/Feb/2008:00:42:54 +0000] PID 21676 (/usr/lib/cups/filter/rastertosamsungspl) exited with no errors.
D [04/Feb/2008:00:42:54 +0000] [Job 93] File 0 is complete.
I [04/Feb/2008:00:42:54 +0000] [Job 93] Backend returned status 2 (authentication required)
D [04/Feb/2008:00:42:54 +0000] Discarding unused printer-state-changed event...
D [04/Feb/2008:00:42:54 +0000] Discarding unused job-stopped event...