HP Deskjet 6122 Color Inkjet Printer - Manual (Page 115)

Out tray capacity:
Plain Paper sheets: Up to 50
Envelopes: Up to 10
Cards: Up to 10
Greeting cards: Up to 30
Labels: Up to 20
Photo paper: Up to 30
Transparencies: Up to 30
media size
U.S. 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)
A4 210 x 297 mm
A5 148 x 210 mm
B5 182 x 257 mm
Envelopes:
U.S. No. 10 105 x 241 mm (4.12 x 9.5 in)
Invitation A2 111 x 146 mm (4.38 x 5.75 in)
DL 110 x 220 mm (4.33 x 8.66 in)
C6 114 x 162 mm (4.49 x 6.38in)
Index/Greeting Cards:
76 x 127 mm (3 x 5 in)
102 x 152 mm (4 x 6 in)
127 x 203 mm (5 x 8 in)
A6 Cards: 105 x 148.5 mm
Custom Size:
Width 77 to 216 mm (3.0 to 8.5 in)
Length 127 to 356 mm (5.0 to 14 in)