erp printers

Ok first i have a unix server (Hp) 11x
there are configuerd a printer to the customer from another place from the world .
the customer connect to the appl from the citrix and from that make a report and send it to the printer , if he send 1 - 6 papers the printer printed OK but if he send to print more than 60 pages the printer started to print the first page
and the seconed after that the printer start from the begain .
i tried to send from the unix server more than 60 pages ( to hime site ) it's the same problem but if i send to my printer i saccess .
comment befor he can send a print and every thing it's Ok
what kined of problem it's pls advice ?

thanks