Loading Envelopes

Make sure to flatten any curls on envelopes before loading them. Also pay attention to the orientation of envelopes and which side is face up.
This section describes how to load envelopes in the orientation you want, as well as procedures that you need to complete before loading envelopes. For a description of the general procedure for loading envelopes in the paper drawer or manual feed slot, see Loading Paper in the Paper Drawer or Loading Paper in the Manual Feed Slot.

Before Loading Envelopes

Follow the procedure below to prepare the envelopes before loading.
On the MF628Cw / MF623Cn, only one envelope at a time can be loaded in the manual feed slot. Follow steps 1 to 3 in the procedure below to prepare the envelope for loading.
1
Close the flap of each envelope.
2
Flatten them to release any remaining air, and make sure that the edges are pressed tightly.
3
Loosen any stiff corners of the envelopes and flatten any curls.
4
Align the edges of the envelope on a flat surface.

In the Paper Drawer

Load the envelopes Monarch (MF628Cw / MF623Cn), COM10, DL, or ISO-C5 in portrait orientation (with the long edges on either side), with the non-glued side (front side) face up. You cannot print on the reverse side of envelopes.
Monarch size envelopes cannot be loaded in the paper drawer on the MF729Cx / MF728Cdw / MF724Cdw. Load them into the manual feed slot.
Load the envelopes so that the edge with the flap is toward the left side as shown in the illustration.

In the Manual Feed Slot

Load the envelopes Monarch, COM10, DL, or ISO-C5 in portrait orientation (with the short edge toward the machine), with the non-glued side (front side) face up. You cannot print on the reverse side of envelopes.
Load only one envelope for the MF628Cw / MF623Cn each time you print.
Load the envelopes so that the edge with the flap is toward the left side as shown in the illustration.
MF729Cx / MF728Cdw / MF724Cdw
 
MF628Cw / MF623Cn
 
0SCJ-00Y