Lexmark E320 Service Manual - Page 112

4500 Paper picks but stops about an inch down the page FRU D-roll assembly Registration roll assembly Action Check for obstructions. Check for wear on the rubber on the D-roll. Inspect the registration roll to ensure all springs, bearings and shafts are operational. Paper picks but stops half way through the printer FRU Action Input paper feed sensor Engine board (E320/E322) Controller card (E220/E321/E323) Make sure the input paper feed sensor is working properly. Check for a broken or stuck flag on the input paper feed sensor. Make sure the cable is seated on the engine board at J2 (E320/E322) or controller card at J11 (E220/E321/E323). See "Engine board (E320/E322 only) " on page 5-2 or page 5-6 for more information. Check for approximately +5 V dc on pins 2, 3, 5, and 6 (at J2 on the engine board of E320/E322 or J11 on controller card of E220/E321/E323). • If correct, replace the input paper feed sensor. • If these voltages are not correct, replace the engine board (E320/ E322) or controller card (E220/E321/E323). 2-82 Service Manual