HP LaserJet Enterprise M4555 MFP series - Manual (Page 109)

Supported paper types
Paper type Tray 1 Tray 2 Optional Trays 3,
4, and 5 Automatic duplex
printing
Plain Paper
Light (60–74 g/m 2 )
Cardstock (176–220 gm 2 )
Transparency
Labels
Letterhead
Envelope 1
Preprinted
Prepunched
Colored
Bond
Recycled
Rough
1 Also supported for the optional envelope feeder.
ENWW Supported paper types 89