Lexmark Optra C710 Service Manual - Page 180

5016-001 FRU 4 Paper Detect Sensor Flag Paper Detect Sensor Board 5 Paper Feed Roller Paper Pick Up Roller Pick Up Gear Pick Up Roller Idler Gears 6 Paper Feed Drive Assembly 7 Tray Option Cable (OP) Printer Option Cable (OP) 8 Option Interconnect Board Engine Board Action Check the paper detect sensor lever (flag) in the paper feed unit assembly, for the tray flag that is not feeding, for any signs of broken parts. Be sure that it is operating properly. Replace the lever (flag), if necessary. Check the paper detect sensor for correct operation. If incorrect replace the sensor board. Check the following paper feed parts, in the paper feed unit, for signs of broken teeth excessive wear or binds. • Paper feed unit clutch. • Paper feed roller shaft, paper transfer roller drive gear and paper feed roller. • Paper transfer roller and paper transfer roller idler gears. • Paper pick up roller, paper pick up gear, paper pick up roller idler gears. Repair or replace any failing FRUs. Check the paper feed drive assembly gears for signs of excessive wear, broken teeth or other damage. If a problem is found, repair or replace the paper feed drive assembly. Check the cables to make sure they are seated properly and for any signs of damage (OP) to the connector contacts. If no problems are found, replace the following FRUs in the order shown: 1. Option interconnect board 2. Engine board 2-114 Service Manual