Canon iR3245 Manual page 122

If you want to select an envelope size:
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If you want to select a standard paper size:
Select the desired paper size → press [Next].
To select an inch paper size, press [Inch-size].
Select the paper type → press [OK].
If the desired paper type is not displayed, press [Detailed Settings] → select the paper type
from the list → press [OK].
If you are printing onto the back side of a previously printed sheet, press [2nd Side of
2-Sided Page].
If you want to select a nonstandard paper size:
Press [Free Size] → [Next].
Select the paper type → press [OK].
If the desired paper type is not displayed, press [Detailed Settings] → select the paper type
from the list → press [OK].
If you are printing onto the back side of a previously printed sheet, press [2nd Side of
2-Sided Page].
If you want to select an envelope size:
Press [Envelope].
2-56 Using the Stack Bypass