Xerox DocuMate 3125 User Manual page 166

Maintenance
2. Pull the paper guide away from the scanner.
3. The replaceable roller is located behind the paper guides.
4. The roller is held in place with a lock tab that rotates to lock and unlock it. To unlock the tab,
rotate it upward until the small lock flange is completely free.
User's Guide
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Xerox DocuMate 3125
9-158