HP LaserJet 5100 Printer series - Manual (Page 93)

ENWW
Specifications A-3
Polyester media
The use of polyester media through the printer for offset printing
applications will not effect or impact any existing printer warranties.
However, image print quality defects and jams are possible when
using polyester media. Only 1 sheet at a time should be fed through
Tray 1.
The media vendor should be contacted to resolve any performance
issues related to the use of polyester media. For more information,
see the polyester media drawer statement at
http://www.hp.com/cposupport/printers/support_doc/
bpl07088.html
.