Lexmark C760 Service Manual
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Diagnostic information2-55 5060-4xx 2Do the gears stop and the fuser drive assembly gears make a loud buzzing sound? Replace the FRUs in the order shown: 1. Fuser drive card. See “Fuser drive card assembly” on page 4-37 . 2. Fuser drive assembly. See “Fuser drive assembly” on page 4-37 . 3. “Fuser assembly” on page 4-35 .Go to step 3 3Check for correct installation of the fuser control cable to J33 on the system board. Make sure the cable is properly connected. Is the cable installed correctly? Go to step 4 Install the cable correctly. 4Remove the fuser from the printer. Measure the voltage at the DC fuser control connector on the LVPS on pin 2 and 9 on the connector. The voltage should measure approximately +5 V dc. Is the voltage correct? Replace the “Fuser assembly” on page 4-35 . Replace the “LVPS assembly” on page 4-46 . 5Check for correct installation of the fuser drive motor cable to connector J29 on the system board. Is the cable installed correctly? Go to step 6 Install the cable correctly. 6Remove the fuser fan to gain access to the motor cable. Check the correct installation of the fuser drive motor cable to connector J1 on the fuser drive motor board. Is the cable installed correctly? Replace the following FRUs in the order shown: 1. Fuser drive card. See “Fuser drive card assembly” on page 4-37 . 2. Fuser drive assembly. See “Fuser drive assembly” on page 4-37 . 3. System board. See “System board” on page 4-72 .Install the cable correctly. Step Action and questions Yes No
2-56Service Manual 5060-4 xx 148 error code Step Action and questions Yes No 1 Connector J30 on the system board - Check for correct installation of the ITU drive motor cable from the ITU drive motor to the system board connector J30. Is the cable connected correctly? Go to step 2 Install the cable correctly 2ITU drive motor - Check for continuity between pin 4 of CON1 on the motor drive card and the remaining pins in the connector. Do you measure continuity? Note: The ITU drive motor can be removed from the printer without removing the complete ITU drive motor assembly. If the ITU drive motor assembly is removed be careful not to spill toner that may be contained in the auger system. Replace the drive motor Go to step 3 3ITU drive motor cable - Check the continuity of the ITU drive motor cable. Do you measure continuity? Go to step 4 Replace the ITU drive motor cable 4ITU drive motor voltage check - Measure the voltage on connector J30 on the system board. The voltages are approximately values. Voltages with motor not running Are the voltages correct? Replace the drive motor Go to step 5 5ITU motor drive assembly - Remove the ITU assembly. Manually turn the motor. The gears in the ITU motor assembly, the second transfer roll gears, and the cleaner gear should turn freely. Do the gears tur n freely? Replace the system board. If this does not fix the problem, replace the ITU drive motor.Go to step 6 6ITU motor drive assembly - Remove the ITU drive motor assembly. Manually turn the motor. Do the gears on the ITU drive motor assembly turn freely? Contact your next level support Replace the ITU motor drive assembly Connector pin Voltages (motor not running) J30-2 +4.2 V dc J30-4 +5.0 V dc J30-6 +3.3 V dc J30-8 +24 V dc J30-10 Ground J30-12 0 V dc J30-14 +3.3 V dc
Diagnostic information2-57 5060-4xx 150 error code Black 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 Indicates the black cartridge drive motor has either failed to lock or has lost lock. Check the black cartridge drive motor cable connection to J30 on the system board. Is the cable installed correctly? Go to step 2 Install the cable correctly 2Check the black cartridge drive motor cable connection to the black cartridge drive motor card. Is the cable installed correctly? Go to step 3 Install the cable correctly 3Check continuity of the black cartridge drive motor cable. Is there continuity? Go to step 4 Replace the black car tridge assembly cable 4Replace the black cartridge drive assembly. Perform “Motor Detect” on page 3-17 . Does this fix the problem? Problem solved Go to step 5 5Replace the system board. Does this fix the problem? Problem solved Call your next level support
2-58Service Manual 5060-4 xx 151 error code Magenta 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. 152 error code Cyan 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 Indicates that the magenta cartridge drive motor has either failed to lock or has lost lock. Check the magenta cartridge drive motor cable connection to J34 on the system board. Is the cable installed correctly? Go to step 2 Install the cable correctly 2Check the magenta cartridge drive motor cable connection to the magenta cartridge drive motor card. Is the cable installed correctly? Go to step 3 Install the cable correctly 3Check continuity of the magenta cartridge drive motor cable. Is there continuity? Go to step 4 Replace the magenta cartridge assembly cable 4Replace the magenta cartridge drive assembly. Pe r fo r m “Motor Detect” on page 3-17 . Does this fix the problem? Problem solved Go to step 5 5Replace the system board. Does this fix the problem? Problem solved Call your next level support Step Actions and questions Yes No 1 Indicates that the cyan cartridge drive motor has either failed to lock or has lost lock. Check the cyan cartridge drive motor cable connection to J34 on the system board. Is the cable installed correctly? Go to step 2 Install the cable correctly 2Check the cyan cartridge drive motor cable connection to the cyan cartridge drive motor card. Is the cable installed correctly? Go to step 3 Install the cable correctly 3Check continuity of the cyan cartridge drive motor cable. Is there continuity? Go to step 4 Replace the cyan cartridge assembly cable 4Replace the cyan cartridge drive assembly. Perform “Motor Detect” on page 3-17 . Does this fix the problem? Problem solved Go to step 5
Diagnostic information2-59 5060-4xx 153 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. 5Replace the system board. Does this fix the problem? Problem solved Call your next level support Step Actions and questions Yes No 1 Indicates that the yellow cartridge drive motor has either failed to lock or has lost lock. Check the yellow cartridge drive motor cable connection to J29 on the system board. Is the cable installed correctly? Go to step 2 Install the cable correctly 2Check the yellow cartridge drive motor Cable connection to the yellow cartridge drive motor card. Is the cable installed correctly? Go to step 3 Install the cable correctly 3Check continuity of the yellow cartridge drive motor cable. Is there continuity? Go to step 4 Replace the yellow car tridge assembly cable 4Replace the yellow cartridge drive assembly. Perform “Motor Detect” on page 3-17 . Does this fix the problem? Problem solved Go to step 5 5Replace the system board. Does this fix the problem? Problem solved Call your next level support Step Actions and questions Yes No
2-60Service Manual 5060-4 xx 154 error code ITU belt motor Step Action and questions Yes No 1 Connector J30 on the system board - Check for correct installation of the ITU drive motor cable from the ITU drive motor to the system board connector J30. Is the cable connected correctly? Go to step 2 Install the cable correctly 2ITU drive motor - Check for continuity between pin 4 of CON1 on the motor drive card and the remaining pins in the connector. Do you measure continuity? Note: The ITU drive motor can be removed from the printer without removing the complete ITU drive motor assembly. If the ITU drive motor assembly is removed be careful not to spill toner that may be contained in the auger system. Replace the drive motor Go to step 3 3ITU drive motor cable - Check the continuity of the ITU drive motor cable. Do you measure continuity? Go to step 4 Replace the ITU drive motor cable 4ITU drive motor voltage check - Measure the voltage on connector J30 on the system board. The voltages are approximately values. Voltages with motor not running Are the voltages correct? Replace the drive motor Go to step 5 5ITU motor drive assembly - Remove the ITU assembly. Manually turn the motor. The gears in the ITU motor assembly, the second transfer roll gears, and the cleaner gear should turn freely. Do the gears tur n freely? Replace the system board. If this does not fix the problem, replace the ITU drive motor.Go to step 6 6ITU motor drive assembly - Remove the ITU drive motor assembly. Manually turn the motor. Do the gears on the ITU drive motor assembly turn freely? Contact your next level support Replace the ITU motor drive assembly Connector pin Voltages (motor not running) J30-2 +4.2 V dc J30-4 +5.0 V dc J30-6 +3.3 V dc J30-8 +24 V dc J30-10 Ground J30-12 0 V dc J30-14 +3.3 V dc
Diagnostic information2-61 5060-4xx 156 error code Black 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 Error code 156 - The black cartridge drive motor has either failed to lock or has lost lock. Check the black cartridge drive motor cable connection to J30 on the system board. Is the cable installed correctly? Go to step 2 Install the cable correctly 2Check the black cartridge drive motor cable connection to the black cartridge drive motor card. Is the cable installed correctly? Go to step 3 Install the cable correctly 3Check continuity of the black cartridge drive motor cable. Is there continuity? Go to step 4 Replace the black car tridge assembly cable 4Replace the black cartridge drive assembly. Perform “Motor Detect” on page 3-17 . Does this fix the problem? Problem solved Go to step 5 5Replace the system board. Does this fix the problem? Problem solved Call your next level support
2-62Service Manual 5060-4 xx 157 error code Magenta 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. 158 error code Cyan cartridge drive assembly Step Actions and questions Yes No 1 The magenta cartridge drive motor has either failed to lock or has lost lock. Check the magenta cartridge drive motor cable connection to J34 on the system board. Is the cable installed correctly? Go to step 2 Install the cable correctly 2Check the magenta cartridge drive motor cable connection to the magenta cartridge drive motor card. Is the cable installed correctly? Go to step 3 Install the cable correctly 3Check continuity of the magenta cartridge drive motor cable. Is there continuity? Go to step 4 Replace the magenta cartridge assembly cable 4Replace the magenta cartridge drive assembly. Pe r fo r m “Motor Detect” on page 3-17 . Does this fix the problem? Problem solved Go to step 5 5Replace the system board. Does this fix the problem? Problem solved Call your next level support Step Actions and questions Yes No 1 Error code 158 - The cyan cartridge drive motor has either failed to lock or has lost lock. Check the cyan cartridge drive motor cable connection to J34 on the system board. Is the cable installed correctly? Go to step 2 Install the cable correctly 2Check the cyan cartridge drive motor cable connection to the cyan cartridge drive motor card. Is the cable installed correctly? Go go step 3 Install the cable correctly 3Check continuity of the cyan cartridge drive motor cable. Is there continuity? Go to step 4 Replace the cyan cartridge assembly cable 4Replace the cyan cartridge drive assembly. Perform “Motor Detect” on page 3-17 . Does this fix the problem? Problem solved Go to step 5 5Replace the system board. Does this fix the problem? Problem solved Call your next level support
Diagnostic information2-63 5060-4xx 159 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. 160 error code ITU drive motor service check Step Actions and questions Yes No 1 The yellow cartridge drive motor has either failed to lock or has lost lock. Check the yellow cartridge drive motor cable connection to J29 on the system board. Is the cable installed correctly? Go to step 2 Install the cable correctly 2Check the yellow cartridge drive motor cable connection to the yellow cartridge drive motor card. Is the cable installed correctly? Go to step 3 Install the cable correctly 3Check continuity of the yellow cartridge drive motor cable. Is there continuity? Go to step 4 Replace the yellow car tridge assembly cable 4Replace the yellow cartridge drive assembly. Perform “Motor Detect” on page 3-17 . Does this fix the problem? Problem solved Go to step 5 5Replace the system board. Does this fix the problem? Problem solved Call your next level support Step Action and questions Yes No 1 Error code 160 indicates that an incorrect motor has been detected. Replace the “ITU drive motor” on page 4-45 . Note : Anytime the ITU drive motor or ITU drive motor assembly is replaced, perform the “Motor Detect” on page 3-17 . Is error code 160 still shown? Call your next level support Problem solved
2-64Service Manual 5060-4 xx 162 error code Black 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. 163 error code Magenta 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. 164 error code Cyan 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 Black cartridge drive assembly - Error code 162 indicates that an incorrect motor is detected. Replace the black cartridge drive assembly. Go to “Cartridge drive assembly” on page 4-30 . Perfor m “Motor Detect” on page 3-17 . Does the printer display error code 162? Go to step 2 Problem solved 2Reflash the NVRAM. Does error code 162 continue? Call your next level support Problem solved Step Actions and questions Yes No 1 Magenta cartridge drive assembly - Error code 163 indicates that an incorrect motor is detected. Replace the magenta cartridge drive assembly. Go to “Cartridge drive assembly” on page 4-30 . Perform “Motor Detect” on page 3-17 . Does the printer display error code 163? Go to step 2 Problem solved 2Reflash the NVRAM. Does error code 163 continue? Call your next level support Problem solved Step Actions and questions Yes No 1 Cyan cartridge drive assembly - Error code 164 indicates that an incorrect motor is detected. Replace the cyan 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 164? Go to step 2 Problem solved 2Reflash the NVRAM. Does error code 164 continue? Call your next level support Problem solved