HP LaserJet Pro M521 Multifunction Printer series - Manual (Page 28)

Supported paper sizes
NOTE: To obtain the best results, select the correct paper size and type in the print driver before
printing.
Table 2-1 Supported paper sizes
Size and dimensions Tray 1 Tray 2 and the
optional 500-
sheet trays Automatic duplex
printing
Letter
216 x 279 mm (8.5 x 11 in)
Legal
216 x 356 mm (8.5 x 14 in)
Executive
184 x 267 mm (7.25 x 10.5 in)
8.5 x 13 in
216 x 330 mm (8.5 x 13 in)
A4
210 x 297 mm (8.3 x 11.7 in)
A5
148 x 210 mm (5.8 x 8.3 in)
A6
104 x 148 mm (4.1 x 5.8 in)
B5 (JIS)
182 x 257 mm (7.2 x 10.1 in)
16K
184 x 260 mm (7.2 x 10.25 in)
16K
197 x 273 mm (7.75 x 10.75 in)
Postcard (JIS)
100 x 148 mm (3.9 x 5.8 in)
Double Postcard (JIS)
200 x 148 mm (7.9 x 5.8 in)
Custom
76 x 127 mm to 216 x 356 mm (3.0 x 5.0 in to
8.5 x 14 in)
14 Chapter 2 Paper trays ENWW