Lexmark Optra C710 Service Manual - Page 186

5016-001 L Media double feeds from tray x. FRU 1 Double Feed Prevention Action Check the double feed prevention pad for signs of wear or damage. Replace the pad if necessary. Duplex Unit Option Service Check Be sure the paper guide assembly bridge block is present and correctly installed. Paper Jam Error Messages (Duplex) 23x = 230 Indicates a jam at the top of the duplex unit. Open the top duplex door to access the jam. Note: This error message may also display if there is a problem with the option LVPS, cabling or duplex option controller board. 231 Indicates a jam at the rear/vertical area of the duplex unit. Open rear door to access the jam. 232 Indicates media is jammed at the bottom of the duplex area. (Paper reversing area or paper re-feeding area). Remove the duplex tray to access the jam area. Paper Jam Error Messages (Printer) 202 Indicates a paper Jam in the exit area of the printer. When a duplex option is installed, a paper jam at the upper duplex unit exit paper guide may cause a 202 paper jam to display, as the trailing edge of the paper is still over the exit sensor in the fuser. 2-120 Service Manual