[csw-users] problem with cups 1.2.7

[Gerard Henry]

hello all,
i've installed cups 1.2.7 on solaris 10.
Many times, jobs aren't printed, and in error_log, we got:
E [06/Jun/2007:09:02:54 -0100] PID 25131
(/opt/csw/lib/cups/backend/socket) stopped with status 1!
E [06/Jun/2007:09:03:06 -0100] [Job 469] Unable to write print data:
Broken pipe
E [06/Jun/2007:09:03:06 -0100] PID 25118
(/opt/csw/lib/cups/backend/socket) stopped with status 1!
And the printer (hp4050) seems completely busy (Led "Datas" still blinking)
Any idea?

thanks in advance,

gerard