E ECU electrical components 103 part numbers 103 PCB fuse, removing 21 removing 56 troubleshooting 64 wiring diagrams 88 edges not printing 72 electrical components, diagrams and part numbers 102 electrical specifications 4 electrophotographic processes, testing 81 electrostatic discharge (ESD) precautions 13 engine control unit.
See ECU engine test button, locating 7 performing 79 troubleshooting 64 environmental specifications 4 error messages 67, 70 ESD (electrostatic discharge) precautions 13 extended warranty 9 guide assembly part number 101 removing 36 H half-self-test functional check 81 hardware maintenance agreements 9 heating element check 83 high-voltage power supply, testing 84 HP Customer Care Online 92 HP SupportPack 9 HP Technical Training 92 humidity specifications 4 troubleshooting 74, 76 I illegal operation error message 70 image formation process, testing 81 image quality repetitive image defect ruler 87 specifications 2 troubleshooting 72 input tray capacity 75 feeding problems 78 locating 6 part number 95 removing 16 installation, software 66 internal components, diagrams and part numbers 98 F face-down delivery assembly, removing 46 face-up roller, removing 47 fasteners, types of 94 fatal errors 69 features, printer 2 feed assembly, removing 60 feeding problems, troubleshooting 77 field replaceable units (FRUs) 94 firmware initialization 67 flashing lights 67 flowchart, troubleshooting 64 formatter, bypassing 79 front cover part number 97 removing 32 front guide assembly part number 101 removing 36 FRUs (field replaceable units) 94 fuse, ECU PCB 21 fuser assembly diagrams and part numbers 108 heating element check 83 removing 42 temperature, adjusting 74 J jams release levers, locating 7 troubleshooting 78 L languages, printer 2 laser/scanner assembly diagrams and part numbers 99 removing 40 LEDs error messages 67 removing 31 troubleshooting 65 left plate assembly part number 99 removing 55 left side cover part number 97 removing 18 lift plate diagrams and part numbers 107 removing 54 G general protection fault error message 70 gray background, troubleshooting 74 green light 67 116 Chapter - Index Q1342-90910