I have HPLIP software version 2.8.2 and Device Manager Software version 11.0 installed on Mandriva Linux Release 2008.1 (Official) for X86_64 running kernel version 2.6.24.7
The problem is that the printer is detected and setup without trouble, but only prints absolutely blank pages.
I have checked the printer in Windows and it prints without trouble and also has functioned without trouble with an earlier version of HPLIP software.
I have also checked both via the HP Device Manager Utility as well as the CUPS interface, in both I have the same problem
relevant output of /var/log/cups/error_log on trying a test print from http://localhost:631/printers/HP_Deskjet_3550
I [18/Aug/2008:07:45:05 +0530] [Job 8] Adding start banner page "none".
I [18/Aug/2008:07:45:05 +0530] [Job 8] Adding job file of type application/postscript.
I [18/Aug/2008:07:45:05 +0530] [Job 8] Adding end banner page "none".
I [18/Aug/2008:07:45:05 +0530] [Job 8] Queued on "HP_Deskjet_3550" by "root".
I [18/Aug/2008:07:45:05 +0530] [Job 8] Started filter /usr/lib/cups/filter/pstops (PID 15698)
I [18/Aug/2008:07:45:05 +0530] [Job 8] Started filter /usr/lib/cups/filter/foomatic-rip (PID 15699)
I [18/Aug/2008:07:45:05 +0530] [Job 8] Started backend /usr/lib/cups/backend/hp (PID 15700)
I [18/Aug/2008:07:45:07 +0530] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=15728)
I [18/Aug/2008:07:45:18 +0530] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=15779)
I [18/Aug/2008:07:45:29 +0530] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=15858)
I [18/Aug/2008:07:45:41 +0530] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=16078)
I [18/Aug/2008:07:45:53 +0530] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=16152)
I [18/Aug/2008:07:46:04 +0530] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=16238)
I [18/Aug/2008:07:46:16 +0530] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=16315)
I [18/Aug/2008:07:46:27 +0530] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=16400)
I [18/Aug/2008:07:46:38 +0530] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=16486)
I [18/Aug/2008:07:46:41 +0530] [Job 8] Completed successfully.
I [18/Aug/2008:07:46:49 +0530] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=16513)