Lexmark T654 Service Manual - Page 141

4062 Error code or message 927.17 929.01 929.02 929.03 930.00 931.00 932.00 Error contents Print cartridge cooling fan over speed failure. Sensor (toner empty) sensor failure. Sensor (toner empty) sensor failure. Sensor (toner empty) sensor failure. Incorrect printhead or intermittent Hsync No first laser H sync Printhead lost laser H syncs. Description/Action Possible repair actions The Print cartridge cooling fan does not reach the specified speed. The sensor (toner empty) does not provide toner level feedback or the print cartridge is damaged. The sensor (toner empty) does not provide toner level feedback or the print cartridge is damaged. The sensor (toner empty) does not provide toner level feedback or the print cartridge is damaged. A non supported printhead is installed. Hsync signal is intermittent or noisy. Printhead ID resistor circuit is not to spec. The hsync signal is missing or not at the correct voltage. The hsync signal is missing or not at the correct voltage. 1. Check for cooling fan obstructions. 2. Check the connections on the main cooling fan. 3. Replace the print cartridge cooling fan. Go to "Print cartridge cooling fan removal (T650, T652, T654)" on page 4-57. 1. Check the toner pulse wheel on the print cartridge for damage and replace the print cartridge if needed. 2. Check the sensor (toner empty) for proper operation. See "Sensor (toner empty) service check" on page 2-155. 1. Check the toner pulse wheel on the print cartridge for damage and replace the print cartridge if needed. 2. Check the sensor (toner empty) for proper operation. See "Sensor (toner empty) service check" on page 2-155. 1. Check the toner pulse wheel on the print cartridge for damage and replace the print cartridge if needed. 2. Check the sensor (toner empty) for proper operation. See "Sensor (toner empty) service check" on page 2-155. Replace the printhead assembly. Go to "Printhead assembly removal (T650)" on page 4-60 or "Printhead assembly removal (T652, T654)" on page 4-61. Replace the printhead assembly. Go to "Printhead assembly removal (T650)" on page 4-60 or "Printhead assembly removal (T652, T654)" on page 4-61. Replace the printhead assembly. Go to "Printhead assembly removal (T650)" on page 4-60 or "Printhead assembly removal (T652, T654)" on page 4-61. Diagnostic information 2-107