Lexmark Optra C710 Service Manual - Page 182

5016-001 FRU 4 Middle Roller 1 Middle Rollers Middle Roller Shaft Middle Roller Drive Gear Action Check the middle roller drive gear, middle roller 1, middle roller shaft, middle rollers and shaft bearings for signs of wear, broken gear teeth or binds. If problems are found, repair as necessary. G Paper Jam 24x displays, media feeds from tray x and jams prior to the paper pass sensor in the base printer. FRU 1 Paper Tray x 2 Paper Feed Roller Paper Pick Up Roller Pick Up Gear Pick Up ROller Idler Gears 3 Paper Feed Unit Clutch Action Check tray x for anything that might cause the paper to jam or prevent media from exiting. Check the following paper feed parts for signs of broken teeth, excessive wear, or binding: • 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 pickup roller idler gears. Voltages for the magnetic clutch can be checked at the 6 pin inline cable connector, located in the HVPS to engine board cable harness above the temperature/humidity board assembly, on the left side of the printer. The resistance of the magnetic clutch should read approximately 245 ohms. If incorrect, replace the magnetic clutch. Check the following voltages on the inline connector, while feeding paper. Pin # 1 (Black lead) 2 (Red Lead) Voltage Static +24 V dc +24 V dc Voltage Feeding +24 V dc 0 V dc to +24 V dc 2-116 Service Manual