Xerox C2424 Service Manual - Page 302

Inspection Rollers: Replace the rollers when you see any of the following defects: ■ Flat spots ■ Out of roundness ■ Cracked rubber ■ Loss of traction (tackiness) causing pick or feed failures Gears: Replace gears that show any signs of wear or breakage. Look for these problems: ■ Thinned gear teeth ■ Bent or missing gear teeth; check especially where a metal gear drives a plastic gear. ■ Fractured or cracked gears (Oil or incorrect grease on a plastic gear can cause the gear to crack.) Belts: There are five rubber belts in the system: ■ Y-axis belt that rotates the drum ■ Two small belts for the exit module, exit rollers (rotation and lift) ■ Two belts on the printhead wiper Inspect the belts for wear and look for these problems: ■ Loose rubber particles below the belts indicate a worn belt. ■ Missing teeth in the belts ■ Cracking or moderate fraying is inevitable, so look for other signs of wear before replacing the belt. Scanner (IIT): Clean or replace the part if damaged or if these problems occur: ■ Dirt, debris or scratches on the platen ■ Document feeder pick rollers or separator pad is damaged or dirty. ■ Clear any foriegn objects or clean dirt or debris from the CVT window on the scanner. 7-2 WorkCentre C2424 Service Manual