Lexmark C 950 Service Manual
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Page 91
Diagnostic information 2-41 5058-030 Go Back Previous Next 115.09 Multiple LED printhead write failure 115.10 Single LED printhead write failure 4POR the machine. Does the error continue? Replace the lower engine PCBA . Go to “Lower engine PCBA removal” on page 4-101. Go to step 5. Problem resolved 5POR the machine. Does the error continue? Replace the upper printer engine PCBA. Go to “Upper printer engine PCBA removal” on page 4-184. Problem resolved StepAction and questionsYesNo 1Check the LED...
Page 92
2-42 Service Manual 5058-030 Go Back Previous Next 115.11 Multiple LED printhead communication failure 4Replace the printhead interface contact. Does the error remain? Go to step 5.Problem resolved 5Check the PC/developer drive motor assembly. Is the above component properly installed? Go to step 6.Replace connections and re-install the PC/developer drive motor assembly. 6POR the machine. Does the error continue? Replace the lower engine PCBA. Go to “Lower engine PCBA removal” on page 4-101....
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Diagnostic information 2-43 5058-030 Go Back Previous Next 115.12 Single LED printhead communication failure 115.13 Multiple LED printhead clock failure StepAction and questionsYesNo 1Check the LED printhead for proper installation. Is the LED Printhead properly installed? Go to step 2.Install the LED printhead properly. 2Check the LED printhead for proper connections. Is the above component properly connected? Replace the LED printhead. Go to “LED printhead removal” on page 4-99. Go to step 3....
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2-44 Service Manual 5058-030 Go Back Previous Next 115.14 Single LED printhead clock failure 115.15 Tray module logic failure 3POR the machine. Does the error continue? Replace the lower engine PCBA. Go to “Lower engine PCBA removal” on page 4-101. Go to step 4. Problem resolved 4POR the machine. Does the error continue? Replace the upper printer engine PCBA. Go to “Upper printer engine PCBA removal” on page 4-184. Problem resolved StepAction and questionsYesNo 1Check the LED printhead for proper...
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Diagnostic information 2-45 5058-030 Go Back Previous Next 120.01 Fuser motor failure 2Replace the tray module controller PCBA. Go to “Tray module controller PCBA removal” on page 4-209. Does the error remain? Go to step 3.Problem resolved 3POR the machine. Does the error continue? Replace the lower engine PCBA. Go to “Lower engine PCBA removal” on page 4-101. Go to step 6. Problem resolved 4POR the machine. Does the error continue? Replace the upper printer engine PCBA. Go to “Upper printer...
Page 96
2-46 Service Manual 5058-030 Go Back Previous Next 120.02 Fuser pressure roll retract motor failure 121.01 Encoder pulse failure StepAction and questionsYesNo 1Check the fuser pressure roll retract motor. Is the above component properly connected? Go to step 2.Replace the connections. 2Replace the fuser pressure roll retract motor. Go to “Fuser pressure roll retract motor removal” on page 4-91. Does the error remain? Go to step 3.Problem resolved 3Check the fuser assembly. Is the above...
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Diagnostic information 2-47 5058-030 Go Back Previous Next 121.02 Encoder pulse failure 121.03 Heat belt (center) disconnection error 121.04 Heat belt (center) overheat error StepAction and questionsYesNo 1Check the fuser assembly. Is the above component properly connected? Go to step 2.Replace the connections. 2Replace the fuser assembly. Go to “Fuser assembly removal” on page 4-81. Does the error remain? Go to step 3.Problem resolved 3POR the machine. Does the error continue? Replace the upper...
Page 98
2-48 Service Manual 5058-030 Go Back Previous Next 121.05 Heat belt (rear) disconnection error 2Check if the fuser assembly is properly connected. Is the fuser assembly properly connected? Go to step 3.Remove foreign particles, and replace the connections. 3Replace the fuser assembly. See “Fuser assembly removal” on page 4-81. Does the error remain? Go to step 4.Problem resolved 4Check the fuser driver for poor connection or damaged connector. Is the fuser driver properly connected? Go to...
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Diagnostic information 2-49 5058-030 Go Back Previous Next 121.06 Heat belt (rear) overheat error 2Replace the fuser assembly. Go to “Fuser assembly removal” on page 4-81. Does the error remain? Go to step 3.Problem resolved 3POR the machine. Does the error continue? Replace the upper printer engine PCBA. Go to “Upper printer engine PCBA removal” on page 4-184. Problem resolved StepAction and questionsYesNo 1Enter into invalid engine code and flash the PJL file. Go to support.lexmark.com or go to...
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2-50 Service Manual 5058-030 Go Back Previous Next 121.07 Heat belt (center) temperature increase failure 121.08 Heat belt (rear) temperature increase failure 7Replace the sub-LVPS. See “Sub LVPS PCBA removal” on page 4-161. Does the error remain? Go to step 8.Problem resolved 8Check the LVPS for poor connection or damaged connector. Is the component properly connected? Go to step 9.Replace the connection. 9Replace the LVPS. See “LVPS PCBA removal” on page 4-109.Call the next level of...