Epson AcuLaser MX20DN series User Manual page 36

1. Align the groove on the right edge of the pickup roller with the white rod, and then slide the pickup
roller onto the rod.
2. Slide the locking lever to the right until it stops, and insert the gray rod into the hole on the pickup
roller.
3. Push the locking lever up to lock the pickup roller.
Epson AcuLaser MX21/MX20 Series User's Guide
Paper Handling 36