Canon 3324B001 Instruction Manual - Page 136

Chapter 7 Maintenance 2. Replacing the Rollers and Document Holding Guide When the rollers start to wear out, document feed errors such as paper jams are more likely to occur. If document feed errors continue to occur even after cleaning the rollers, purchase a roller replacement kit, and replace the rollers (feed roller and retard roller) and document holding guide. ❏ Roller Replacement Kit The roller replacement kit is a kit consisting of replacements for the feed roller, retard roller, and document holding guide. For details, contact your local authorized Canon dealer or service representative. Product name: ScanFront 220/220P Roller replacement kit Product code: 2445B001 ❏ Replacing the Document Holding Guide Follow the procedure below to replace the document holding guide. For details on how to replace the feed roller and retard roller, see p. 7-5 and p. 7-6. 1. Open the roller cover, and remove the document holding guide by sliding it up. Document Holding Guide Feed Roller Retard Roller 2. Hook the new document holding guide (four hooks) onto the roller cover, and slide it down to set it in place. IMPORTANT • The feed roller, retard roller, and document holding guide are consumable parts. When the total number of pages scanned with the rollers reaches 30,000 pages, purchase a roller replacement kit and replace the parts. (See "Checking the Page Count and Resetting the Counter" on p. 7-9.) • When the rollers start to wear out, problems such as paper jams and improper document feeding become more likely to occur. If this happens, replace the rollers regardless of the page count. • Make sure to reset the roller counter after replacing the rollers. 7-8