Xerox 8500DN Service Manual - Page 106

Error Messages and Codes 8400 PEST Description 8500/8550/8560 PEST Description 37,012.48: Inkmelt 3 (Black) disconnect. The inkmelt heater is not drawing the expected power from the supply. Inkmelt 2 (Magenta) disconnect. The inkmelt heater is not drawing the expected power from the supply. 37,013.40: Inkmelt 3 (Black) disconnect. The inkmelt heater is not drawing the expected power from the supply. Troubleshooting Procedure for Heaters Step Questions and Actions Yes No 1 Check the wiring running from the problem component to the Printhead. Is the wiring damaged? Replace Go to Step 2. the wiring harness. 2 Run the appropriate diagnostic test: 37,002.47 = Left Jetstack Heater 37,003.48 = Right Jetstack Heater 37,004.40, 37,005.41 = Reservoir Heaters Did the test pass? Replace the Printhead. 3 Run the appropriate diagnostic test: 37,006.42 = Drum Heater Did the test pass? Replace the Drum Assembly. 4 Run the appropriate diagnostic test: 37,008.44 = Preheat Heater Did the test pass? Replace the Preheater. 5 Run the appropriate diagnostic test: 37,009.45 = (8500/8550/8560) All melters = (8400) Ink Melt 1 37,010.46 = (8500/8550/8560) Ink Melt 1 = (8400) Ink Melt 2 37,011.47 = (8500/8550/8560) Ink Melt 2 = (8400) Ink Melt 3 37,012.48 = (8500/8550/8560) Ink Melt 3 = (8400) Ink Melt 4 37,013.48 = (8500/8550/8560) Ink Melt 4 Did the test pass? Replace the Ink Loader. 8400 PEST Description 8500/8550/8560 PEST Description 37,013.40: Electronics module cooling fan disconnect. The electronics cooling fan is not drawing the expected power from the supply. 3-38 Phaser 8400/8500/8550/8560 Color Printer Service Manual