Lexmark E320 Service Manual - Page 113

Paper never picks 4500 FRU Sheet feed assembly Paper feed clutch assembly Engine board Controller card Action Make sure the paper tray is correctly installed. The mylar guide sheet in the front of the tray must be positioned in the paper path just behind the pick roller assembly. This guide sheet can easily block the paper path if installed incorrectly. Unplug the printer, make sure the solenoid is installed correctly and its cable is plugged into J10 (engine board in E320/E322) or J12 (controller card in E220/E321/E323). See "Engine board (E320/E322 only) " on page 5-2 or page 5-6 for more information. • If the solenoid is properly plugged in, unplug unit and check resistance. • If the resistance is not 60-75 ohms, replace the solenoid. • If the resistance measures 60-75 ohms, see the "Engine board service check (E320/ E322) " on page 2-72 or "Controller card service check (E220/E321/E323) " on page 2-67 for more information. Replace the engine board or controller card as necessary. Paper occasionally picks or picks multiple sheets at once FRU Pick roller assembly (D-roll) Sheet feed assembly Action Check pick roller (D-roll) assembly for wear. Replace as necessary. Check the friction pad in the sheet feed assembly for signs of wear. Replace the sheet feed assembly as necessary. Diagnostic information 2-83