[Ubuntu Wiki] Update of "DebuggingPrintingProblems" by till-kamppeter

[Ubuntu Wiki]

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The following page has been changed by till-kamppeter:
http://wiki.ubuntu.com/DebuggingPrintingProblems?action=diff&rev1=59&rev2=60

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   4. Check if the device files of the parallel port(s) are created and have the correct permissions and ownerships: <<BR>> {{{$ ls -l /dev/lp* /dev/parport* }}}
   5. Check if the printer auto-detection result appears in the kernel's virtual file system: <<BR> {{{$ ls -l /proc/sys/dev/parport/parport*/autoprobe* }}} <<BR>> {{{$ sudo cat /proc/sys/dev/parport/parport*/autoprobe* }}}
   6. Find out if your printer gets detected by CUPS: <<BR>> {{{$ lpinfo -v}}}
-  7. Run the parallel port CUPS backend separately, once with standard user privileges and once as root: <<BR>> {{{$ /usr/lib/cups/filter/parallel }}} <<BR>> {{{$ sudo /usr/lib/cups/filter/parallel }}}
+  7. Run the parallel port CUPS backend separately, once with standard user privileges and once as root: <<BR>> {{{$ /usr/lib/cups/backend/parallel }}} <<BR>> {{{$ sudo /usr/lib/cups/backend/parallel }}}
   8. Attach the output of the above commands to the bug report.
  
  Note that problems cannot only caused by CUPS but also by the kernel (package "linux"), HPLIP (package "hplip"), and several third-party printer drivers.