Printing issues

I work for a small technology solutions company. One of our clients is having some major issues printing from Filemaker 9. Version 9 on the server as well.

Printing 1 page diagnostic reports using the PCL driver:

- The first few in the queue usually print okay (not always)

- When it hangs, it prints out a page with nothing but the logo on it.

- The print queue shows the transmitted size increasing ~32kb at a time, it prints out a new sheet with a single line of gibberish on each page, this continues indefinately until you clear the job out.

- If you switch to PostScript, these problems don't occur.

- Multi-page reports print fine.

BUT

Using PostScript

- Single page diagnostic reports can be queued up, 15-16 at a time, and print no problem.

- When a large report of 50-100 pages is set to print (not individual pages, one item in print queue) the printer stalls again. It will print the first few pages, idle for a few minutes, print some more, idle, and continue. It will eventually print the entire document, but it takes an exceedingly long time.

Any suggestions or help with this would be much appreciated. The user is currently stuck switching the print driver from PCL to PS depending on what she's printing. The printer in use is an Okidata CF5550 MFP. However, the issue has also occured on an HP and a Konica/Minolta printer. They continue buying printers from another vendor trying to fix the problem.