Lexmark C760 Service Manual
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Diagnostic information2-65 5060-4xx 165 error code Yellow cartridge drive assembly Note: Any time any of the cartridge drive motor assemblies are replaced perform the “Motor Detect” on page 3-17 . If this procedure is not performed, error code 168 is displayed. Step Actions and questions Yes No 1 Yellow cartridge drive assembly - Error code 165 indicates that an incorrect motor is detected. Replace the yellow cartridge drive assembly. Go to “Cartridge drive assembly” on page 4-30 . Perform the “Motor Detect” on page 3-17 . Does the printer display error code 165? Go to step 2 Problem solved 2Reflash the NVRAM. Does error code 165 continue? Call your next level support Problem solved
2-66Service Manual 5060-4 xx 200 Paper Jam—Tray 1 1.Obtain the sub error code from the operator panel. Press and hold Return and press Select to view the sub error code. 2.Compare the sub error code to the list below and go to the appropriate service check. S2 or narrow media sensor obstructed 2D 1B—S2 sensor obstructed 2D 1C—Narrow media sensor obstructed Note: See “Printer sensors” on page 5-3 . Sub error code Service check 2D 1B 2D 1C “S2 or narrow media sensor obstructed” on page 2-66 2D 11 2D 03 “S2 sensor late” on page 2-67 2D 0F 2D 02 2D 05 “S2 or narrow media sensor made early” on page 2-67 2D 04 2D 06 “S2 or narrow media sensor did not break in time” on page 2-68 Step Action and questions Yes No 1 Is sensor flag obstructed by paper debris, out of position, or broken? Clear obstruction and reinstall or replace flag.Go to step 2 2Perform the “BASE SENSOR TEST” on page 3-30 . Do both sensor pass the test? Problem solved Go to step 3 3Is the inner deflector out of place, causing sensor flag to bind? Install inner deflector properly.Go to step 4 4Are the sensors connectors fully seated? Go to step 5 Reseat the sensor connector. 5Are connectors at J21 fully seated on the system board?Go to step 6 Reseat the connector on the system board. 6Check sensor cables. Are the cables cut or broken? Replace the cables. Go to step 7 7Replace the sensor that did not pass the test. Is the problem solved? Replace the “System board” on page 4-72 .
Diagnostic information2-67 5060-4xx S2 sensor late 2D 11—S2 sensor late 2D 03—S2 sensor late Note: See “Printer sensors” on page 5-3 . S2 or narrow media sensor made early 2D 0F—S2 sensor early 2D 02—S2 sensor early 2D 05—Narrow media sensor early Note: See “Printer sensors” on page 5-3 . Step Action and questions Yes No 1 Check the tray for proper edge guide setting and media loading. Edge guides should be adjusted against edge of media. Media should be fanned and lay flat in the tray. Is the media properly loaded in the tray? Go to step 2 Properly load media. 2Check the pick tires for contamination or wear. Are pick tires worn or contaminated? Replace the “Pick rolls” on page 4-59 . Go to step 3 3Check for obstructions in the paper path. Is the paper path obstructed? Clear the obstruction. Go to step 4 4Is the inner deflector out of position? Correct the deflector position.Go to step 5 5Is the autocompensator damaged or defective? Go to “Autocompensa tor service check” on page 2-107Go to step 6 6Perform the “BASE SENSOR TEST” on page 3-30 on the S2 sensor. Does the S2 sensor pass the test? Call your next level of support. See “S2 or narrow media sensor obstructed” on page 2-66 . Step Action and questions Yes No 1 Check tray for the edge guide setting and media loading. Edge guides should be adjusted against edge of media. Media should be fanned and lay flat in the tray. Is the media properly loaded in the tray? Go to step 2 Properly load media. 2Media may not have been cleared from a previous jam. Is media in paper path? Clear the paper path. Call your next level of support
2-68Service Manual 5060-4 xx S2 or narrow media sensor did not break in time 2D 04—S2 sensor did not break in time 2D 06—Narrow media sensor did not break in time Note: See “Printer sensors” on page 5-3 . 200 Paper Jam—Options and multipurpose feeder 500-sheet option or envelope option Step Action and questions Yes No 1 Make sure the media installed in the tray meets specifications. Does the media meet specifications? Go to step 2 Inform the customer that media loaded in Tr a y x does not meet specification 2Check tray for the edge guide setting and media loading. Edge guides should be adjusted against edge of media. Media should be fanned and lay flat in the tray. Is the media properly loaded in the tray? Go to step 3 Properly load media. 3Remove the ITU and check for the jam at the second transfer roll. Is paper jammed at the second transfer roll? Clear the jam. Call your next level of support. Step Action and questions Yes No 1 Does media feed correctly from Tray 1? Go to step 2 Go to “200 Paper Jam— Tray 1” on page 2-66 2Check the tray 2 for proper media loading. Media should be fanned before loading and must lay flat in the tray. Is the media loaded properly? Go to step 3 Load media properly. 3Check tray 1 pass through for damage or obstructions. Note: Remove the paper drawer to inspect tray 1 pass through. Is the pass through damaged or obstructed? Remove obstruction or replace damaged parts. Go to step 4 4Remove duplex and check the pass through. Check the alignment pin on top of the 500-sheet option Check the pass through roller drive system on top of tray 2 Check the pass through the roller drive system on the bottom of the duplex option. Replace the duplex option or 500-sheet option as needed.
Diagnostic information2-69 5060-4xx Multipurpose feeder Duplex option High-capacity input tray (HCIT) Step Action and questions Yes No 1 Does the media feed correctly from tray 1? Go to step 2 Go to “200 Paper Jam— Tray 1” on page 2-66 . 2Verify that the media is loaded properly in the multipurpose feeder. Is the media properly loaded? Replace the “Friction buckler” on page 4-33 . Properly load the media. Step Action and questions Yes No 1 Does the media feed correctly from tray 1? Go to step 2 Go to “200 Paper Jam— Tray 1” on page 2-66 . 2Does the media feed correctly from the 500-sheet options, if installed? Go to step 3 Go to “500-sheet option or envelope option” on page 2-68 3Check tray 1 pass through for damage or obstruction. Is the pass through obstructed or damaged? Clear the obstruction. Replace the duplex option. Step Action and questions Yes No 1 Make sure the media installed in the tray meets specifications. Note: The HCIT only supports paper. Does the media meet specifications? Go to step 2 Inform customer that media does not meet specifications. 2Does the media feed correctly from tray 1? Go to step 3 Go to “200 Paper Jam— Tray 1” on page 2-66 . 3Does the media feed correctly from the 500-sheet options, if installed? Go to step 4 Go to “500-sheet option or envelope option” on page 2-68 4Check the pass through in 500-sheet option for damage or obstruction, if installed. Is the pass through obstructed or damaged? Clear the obstruction. Replace the HCIT.
2-70Service Manual 5060-4 xx 201 Paper Jam Step Action and questions Yes No 1 Remove fuser from printer, remove oiler housing from fuser, and pivot the paper guide up. Is paper jammed inside the fuser? Clear the jam. Go to step 2 2Check fuser entry guide for toner buildup. Is toner built up on the fuser entry guide? Replace the “Fuser assembly” on page A-35 . Go to step 3 3Check fuser exit sensor flag. Does the flag rotate freely and return to normal position when released? Go to step 4 Replace the “Fuser assembly” on page A-35. 4Reinstall fuser and perform the “BASE SENSOR TEST” on page 3-30 . Note: Use a spring hook to actuate the flag. Does fuser exit sensor pass test? Go to step 5 Perform the following in order: 1. Reseat the connector J33 on the system board. 2. Replace the “Fuser assembly” on page 4-35 . 3. Replace the “LVPS assembly” on page 4-46 . 4. Replace the “System board” on page 4-72 . 5Check the vacuum transport belts (VTB) for motion. Observe the belt through the front door. Are the belts on the VTB assembly turning? Go to step 6 Go to “Vacuum transport belt (VTB)” on page 4-77 to verify correct installation. 6Check the VTBs for wear or damage. Are the belts worn or damaged? Replace the “Vacuum transport belt (VTB)” on page 4-77 . Go to step 7. 7Check the VTB plate for a buildup of debris. Is there a debris buildup? Clean off the VTB plate. Go to step 8 8Does media move smoothly into the fuser from the VTB? Call the next level of support.Replace the “Vacuum transport belt (VTB) fan” on page 4-79 .
Diagnostic information2-71 5060-4xx 202 Paper Jam Step Action and questions Yes No 1 Remove the fuser from the printer. Remove the oiler housing from the fuser, and pivot the paper guide up. Is media jammed inside the fuser? Clear the jam from the fuser. Go to step 2 2Check fuser exit sensor flag. Does flag rotate freely and return to normal position when released? Go to step 4 Replace the “Fuser assembly” on page 4-35. 3Check that the diverter gates in the fuser rotate freely. Do the diverter gates rotate freely? Go to step 4 Replace the “Fuser assembly” on page 4-35. 4Reinstall the fuser and perform the “BASE SENSOR TEST” on page 3-30 for the fuser exit sensor. Note: Use a spring hook to actuate the flag. Does the fuser exit sensor pass? Got to step 5 Perform the following in order: 1. Reseat the connector J33 on the system board. 2. Replace the “Fuser assembly” on page 4-35 . 3. Replace the “LVPS assembly” on page 4-46 . 4. Replace the “System board” on page 4-72 . 5Check that the duplex diverter rotates freely with the redrive door closed. Does the duplex diverter rotate freely? Go to step 6 Replace the “Redrive door” on page 4-19. 6Check for the proper operation of the redrive. Are both belts in good condition and properly installed? Go to step 7 Install or replace the “Redrive assembly” on page 4-68 .
2-72Service Manual 5060-4 xx 7If the duplex option is in use, check the lower right door paper path. Does media pass freely between the door and the metal plate?Go to step 8 Replace the “Lower right door assembly” on page 4-18. 8If the duplex option is in use, remove the duplex R.H. access panel to check if the jam occurred at duplex entry edge guide. Did the jam occur at the duplex entry edge guide? Replace the duplex option. Go to step 9 9If the duplex option is in use, check the actuator button. See “Duplex option deflector button replacement” on page A-14 . Should the actuator button be replaced? Replace the button. Go to step 10 10If the finisher option is in use, refer to the finisher manual for the alignment procedure. Is the finisher properly aligned? Go to step 11 Realign the finisher. 11Is a 5-bin mailbox option or an output expander option in use? Check the following: Reseat the option on the printer. Verify the top cover is properly seated on developer HVPS. Call your next level of support. Step Action and questions Yes No
Diagnostic information2-73 5060-4xx 230 Paper Jam Step Action and questions Yes No 1 Thoroughly examine the duplex paper path for torn paper that may be blocking the sensors or paper path. Is the duplex paper path clear? Go to step 2 Clear the paper path. 2Check the lower right door paper path. Does media pass freely between the door and the metal plate? Go to step 3 Replace the “Lower right door assembly” on page 4-18. 3Are any of the following conditions true? Only the back of the page of a duplex job prints and exits into the standard bin. Media exits the right side of the print. Media jams in the duplex at the diverter. Go to step 4 Go to step 8 4Open the redrive door and check that the diverter operates freely. Does the diverter operate freely? Go to step 5 Replace the “Fuser assembly” on page 4-35. 5Close the redrive door and check that the diverter operates freely. Does the diverter operate freely? Go to step 6 Replace the “Redrive door” on page 4-19. 6Check that the diverter actuator link is not binding or damaged. Examine the link for damage under the duplex option. Is link binding or damaged? Repair the actuator link. Go to step 7 7Check the duplex actuator button. See “Duplex option deflector button replacement” on page A-14 . Should the button be replaced? Replace the Actuator button. Go to step 8 8Check for the correct sensor operation by performing the “Duplex Sensor Test” on page 3-24 .Replace the duplex option. Go to step 9 9Make sure the sensors are correctly connected to the duplex system board. Are the cables correctly connected? Replace the duplex option. Correctly connect the cables.
2-74Service Manual 5060-4 xx 24x Paper jam 500-sheet drawer option Media does not reach the pass thru sensor Step Action and questions Yes No 1 Is Tray x a HCIT 2000-sheet option? Go to “HCIT” on page 2-75 Go to step 2 2Make sure the media installed in the tray meets specifications. Does the media meet specifications? Go to step 3 Inform the customer that media loaded in Tr a y x does not meet specification 3Make sure the media is loaded correctly. Make sure the side and back restraints are located and seated properly. Is the media loaded correctly? Go to step 4 Load the media correctly 4See if the paper is trying to feed from the tray. Note: You can observe the autocompensator feed rolls and the paper through the tray access door. Run the Tray x feed test from the Diagnostics Menu to help diagnose a feed problem. See “Feed Test” on page 3-25 . Is the media leaving the tray? Go to step 8 Go to step 5 5Are both of the autocompensator pick rolls installed and turning? Go to step 6 Go to step 9 6Check the autocompensator pick rolls for wear or contamination. Are the autocompensator pick rolls worn or contaminated?Replace the pick arm rolls. Replace both rolls at the same time.Go to step 7 7Check the pass thru sensor for correct operation by running the Tray x sensor test from the Diagnostics Menu. See “Sensor Test” on page 3-25 . Does the pass thru sensor operate correctly? Check for any obstructions that might catch the media and create a paper jamGo to step 8 8Make sure the pass thru sensor is correctly connected to the Tray x system board. Is the sensor cable connected correctly? Replace the FRUs in the following order: 1. Pass thru sensor assembly 2. Electronics/ size sensing assembly with system board. Install the cable correctly