Lexmark J110 Service Manual - Page 28

4085-001 Error 930 931 932 933 Symptom Black Printhead - P-lines shorted or Substrate Heater shorted Color Printheads - P-lines shorted or Substrate Heater shorted Both Printheads - P-lines shorted or Substrate Heater shorted Black Printhead - Engine cannot communicate with Printhead Memory Color Printhead - Engine cannot communicate with Printhead Memory Both Printheads - Engine cannot communicate with Printhead Memory Black Printhead - Contents of Printhead Memory are invalid Color Printhead - Contents of Printhead Memory are invalid Both Printheads - Contents of Printhead Memory are invalid Printhead System - Failure measuring a calibration resistor. The debug data identifies the resistor being measured and the type of failure: value too low, value too high, or value=zero. Action Check all contacts and cables. If tests fail, replace the printheads. If failure still occurs, replace engine board. Check the printhead and tank contacts.Check the carrier to engine cables. Check the printhead and tank memory chip placement. If the problem remains, replace the engine board. See the "Engine Board / Cover Removal" on page 4-14 . Replace printheads. See "Change Printheads" on page 3-4 . If contents of printhead memory are still invalid, replace engine board. See "Engine Board /Cover Removal" on page 4-14 . Check carrier cables. Check the printhead/ carrier contacts. Try replacing the printheads before replacing the carrier. Check the carrier cable. If cable is OK, replace carrier. See "Carrier/Cable Retainer Removal" on page 4-48 . Try replacing both printheads. If problem remains, replace engine board. See "Engine Board /Cover Removal" on page 4-14 . 2-6 Service Manual