Canon BJC-55 - Manual (Page 156)

Envelopes
The shaded portion in the figures below shows the recommended
printing areas for a US Commercial No. 10 envelope (9.5 x 4.1 in) and
European DL size envelope (220 x 110 mm). The printer's maximum
mechanical printing area is inside the top and bottom margins.
However, we recommend setting the margins wider than 22 mm
because print quality degrades below this.
The size of the printing area may vary according to settings done with
the printer driver.
7 mm
3 mm
104.8 mm (4.1 in)
6.4 mm
241.3 mm (9.5 in)
241.3 mm (9.5 in)
22 mm
31.7 mm
22 mm
6.4 mm
7 mm
3 mm
110 mm ( 4.3 in)
6.4 mm
220 mm (8.7 in)
22 mm
10.4 mm
22 mm
104.8 mm (4.1 in)
22 mm 3 mm
3 mm
3 mm
22 mm
220 mm (8.7 in)
6.4 mm
110.4 mm (4.3 in)
22 mm 3 mm
3 mm
3 mm
22 mm
154 Appendix A Paper Specifications
U.S. Commercial 10 size
European DL size
Paper feed
direction
Paper feed
direction