Lexmark C782 Service Manual - Page 124

5061 Step 7 8 Actions and questions Check the voltages on the bottom options cable connector. The voltages are with the printer in standby mode. Note: All voltages are approximate values. Connector pin Voltage J20-1 +5 V dc J20-2 Ground J20-3 Ground J20-4 +5 V dc J20-5 +24 V dc J20-7 +5 V dc J20-8 +5 V dc Are the voltages correct? Make sure the upper options cable in the duplex option is installed correctly in the duplex frame. Is the cable installed correctly? Yes Go to step 8 Go to step 9 9 Make sure the upper options cable in the duplex option is connected correctly to J11 on the duplex options board. Is the cable connected correctly? 10 Check continuity of the upper duplex options cable. Is there continuity? Go to step 10 Replace the duplex options board. No Replace the bottom options cable in the printer. Correctly install the cable. If the connector is damaged, replace the cable assembly. Install the cable correctly. Install the cable correctly. Top margin on duplexed copy set incorrectly Go to "Duplex Quick Test" on page 3-19 to adjust the top margin on the back of the duplexed page. 2-82 Service Manual