There are three methods available based on the paper size being used.
Use upper unit S. Attach Stopper S to the side close to where the ejected paper exits.
Adjust the position of Upper Unit S and the Edge Guides according to the paper size.

Upper Unit S is used. Attach Stopper S to the side furthest from where the ejected paper exits.
Adjust the position of Upper Unit S and Edge Guides according to the paper size.

Use upper Unit L (two units). Attach Stopper S to the side furthest from where the ejected paper exits, and make sure it is level.
Adjust the position of Upper Unit L and the Edge Guides according to the paper size.

The following shows the relationship between the three usage methods and the paper sizes.
|
Paper Size |
Paper Length |
Standard Size |
|---|---|---|
|
Small |
140 to 250mm |
Sheet : A6 Envelope : Envelope #10 |
|
Medium |
250 to 355mm |
Sheet : Oficio 9 Envelope : Envelope C4 |
|
Large |
356 to 470mm |
Sheet : A3 |
You can watch the procedure in a Web Video Manuals. Access the following website.