Thanks for the advice and comments, I've been told by the IT person at the local college that it could be due to the size of memory (16M).
I assumed that lazer printers work similer to ink jet (i.e. use the computer is a buffer), however, I'm told that a lazer will download all the print data and then start printing. So a printer with a buffer of 16M will just not handle large files. I've checked with the data sheet for this printer, maximum memory size - 16M
So how can HP sell this print as suitable for 'professional' use?
Thanks again for everyones help.
Robert