Lexmark C782 Service Manual - Page 127
Printer does not recognize that the HCIT 2000-sheet option is installed., Replace HCIT
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5061 Printer does not recognize that the HCIT 2000-sheet option is installed. Step 1 2 Actions and questions Is the HCIT 2000-sheet option the only paper input option that is not recognized? Make sure that the printer and any option above the HCIT 2000-sheet option are installed correctly. Are the printer and any options installed correctly? 3 Check for correct installation of the lower options autoconnect cable to system board connector J20. Is the cable to J20 installed correctly? 4 Disconnect J20 from the system board, and check the voltages on connector J20 on the system board. Note: All voltages are approximate values: Connector pin Voltage J20-1 +5 V dc J20-2 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? 5 Autoconnect cables-Check the autoconnect from the printer or option above the HCIT 2000-sheet option. Check for any signs of cuts, pinched wiring, or damage to the contacts in the connector. Are there any problems with the autoconnect cables? 6 HCIT autoconnect cable-Check the HCIT autoconnect cable for correct installation at the HCIT system board. Is the cable installed correctly? 7 HCIT autoconnect cable continuity-Check the continuity of the HCIT autoconnect cable(s). Is there continuity? Yes Go to step 5 Go to step 3 Go to step 4 Go to step 5 Repair or replace as necessary. Go to step 7 Replace HCIT system board. No Go to step 2 Install the options correctly, and recheck performance. Install the cable correctly, and recheck performance. Replace the system board. Go to step 6 Install the cable correctly. Replace the HCIT autoconnect cable. Diagnostic information 2-85