DF-520 Document Folder Parts List, Service Manual – 79 Pages; DF520 Document Folder Operation Manual – 72 Pages; DF-520N Document Folder Operation ManualManuals and User Guides for Duplo DF-520. We have 2 Duplo DF-520 manuals available for free PDF download: Instruction Manual · 3. Table of Contents · 4. 1 Safety Duplo DF-520. Manuals and User Guides for Duplo DF-520. We found 2 manuals for free downloads: instruction manual. Duplo DF-520 Instruction manual. This instruction manual describes the functions of the Duplo Folder. , how to operate it, and safety precautions in use. Before using your unit, Download Instruction manual of Duplo DF-520 Folding Machines, Paper folding machines for Free or View it Online on All-Guides.com. Brand: Duplo. Category: Duplo DF-520 Service Manual PDF file download free. Duplo DF-520 Service Manual will help to repair the device and fix errors. Duplo DF-520N. Paper Folder. Instruction Manual. Page 2. Page 3. Page 4. Page 5. Page 6. Page 7. Page 8. Page 9. Page 10. Page 11. Page 12. Page 13. Page 14