Scantronic iNSIGHT 20 Plus Operator's Manual page 142

Operator's Guide
6.
Insert the feed module by aligning the pins and
pushing it toward the left to fit it into position. Be sure
the gears are aligned and it snaps into place.
7.
Reinstall the feed module cover by aligning the tabs in
the slots and pushing the feed module cover down
until it snaps into place.
Chapter 5: Maintenance
Removing and Replacing the Feed Module
129