HP Color LaserJet 8550 Multifunction Printer series - Manual (Page 69)

68 3 Common Printing Tasks EN
Preprinted Forms and Letterhead
Observe the following guidelines to avoid problems with preprinted
forms and letterhead.
z Forms and letterhead must have been printed with heat-resistant
inks that will not melt, vaporize, or release hazardous emissions
when subjected to the printer's fusing temperatures
(approximately 374° F, or 190° C).
z The inks must be non-flammable and must not adversely affect
any printer rollers.
z Forms and letterhead should be sealed in a moisture-proof
wrapping to prevent moisture damage during storage.
z Inks must be completely dry on forms and letterhead before they
are used in the printer. Ink that is not completely dry can come off
the page during the fusing process.