Print repeatly(Lprng,ifhp&HP4100)

Hi All,

I runs print server in slackware samba,Lprng and ifhp filter, printer configed
with printtool. the all printers connect with HP Jetdirect. there have some
problems need you kind help.

1, The page print repeatedly when i use a HP LaserJet4100, the acct.log file no
'fileend' item, after update ifhp, the error is still on.
2, Why HP920c can't print in the same situation.

Thanks in advance!
PL