Canon imageRUNNER 3530 Reference Manual page 186

3
4
4
4-30
Specifying Common Settings
Press [ENV.1] or [ENV.2] ➞ select the envelope type ➞
press [OK].
Make sure that the selected envelope type is the same envelope type loaded in
the paper source.
The selected mode is set.
Press [Done] repeatedly until the Basic Features screen
appears.