Use either European DL or US Com. #10 size envelopes.
1 Press down on all four corners and edges of the envelopes to flatten them as shown below.
2 If the envelopes are curled, hold the opposite corners and gently bend them in the opposite direction.
Ensure that the flap of the envelope is perfectly straight.
3 If the leading edge of an envelope is puffed up or curled, use a pen to press the envelope flat and sharpen the crease.
Press the envelope completely flat, working from the middle to the edge.
* The above illustrations show a side view of the leading edge of the envelope.
The envelopes may jam in the printer if they are not completely flat and the edges are not aligned.
Ensure that no curl or puff exceeds 3 mm (0.1 in).
Place envelopes lengthwise with the flap to the left and the address side facing upwards.
Up to 10 envelopes can be loaded at once.
Set the paper thickness lever to the right.
Note
If the envelopes still do not feed properly even after removing curl, clean the paper feed roller.
Page Size: Select either DL Env. or #10 Env. according to the envelope size you are using
See Printing Area