Hi,

so I was trying to print something after a long time of not printing anything.

I got the error message "Can't creeate temporary file" in http://localhost:631 .

The reason was that /var/spool/cups/tmp was

  drwxr-xr-x 2 root lp  tmp

when it should have been

  drwxrwxr-x 2 root lp  tmp

otherwise HP PSC 2170 wouldn't print.