HP 1300 Service Manual - Page 221

tests drum rotation 158 engine 156 half-self functional check 157 heating element 159 high-voltage power supply 160 paper path 162 self-test page 167 troubleshooting 140 text troubleshooting misprinted 150, 152 thermistor connector 159 timing diagram, general 72 toner cloth, ordering 182 image formation operations 65 loose, troubleshooting 151 redistributing 148 scattered, troubleshooting 153 smears, troubleshooting 151 specks, troubleshooting 150, 153 waste cleaning operations 66 toner cartridges. See print cartridges tools, required 75 top cover, removing 87 trailing edge, detection 69 Training, HP Technical 178 transfer roller cleaning around 45 life expectancy 38 observing 162 operations 65 power supply 63 removing 96, 132 transfer stage, image formation process 65 transparencies cleaning print path with 46 loading 35 trays. See main input tray; priority input tray troubleshooting steps 140 TrueType fonts, included 15 truss head screws 183 two-way communications 55, 57 U Universal Serial Bus. See USB unplugging printer 75 upper metal shield, pickup assembly 120 USB cable, ordering 179 interface 55 port, locating 21 V vacuums, cautions against 47 variables, NVRAM 165 ventilation requirements 28 vertical defects, troubleshooting 152 vertical lines, troubleshooting 150 VIDEO signals 71 voltage DC power supply 62 high-voltage power supply 63 overvoltage protection 62 part numbers based on 183 W WAIT period 71 warranty extended 23 refilled cartridges, impact on 25 statement 22 waste toner receptacle 66 wave, troubleshooting 153, 154 websites 178 weight printer 16 width, product 16, 28 wiring diagrams 171 wrapping jams 69 wrinkled pages, troubleshooting 154 writing stage, image formation process 65 Y yellow light. See Attention light ENWW Index 221