high-voltage power supply connector assembly, checking 205 operations 89 testing 204 HP Customer Care Online 242 HP JetDirect print servers, ordering 243 HP SupportPack 24 HP Technical Training 242 humidity specifications 19 troubleshooting 190, 192 L label, model and serial number 22 labels specifications for 47 labels, printing 50 languages, printer 79 laser/scanner assembly cautions for 109 diagrams and part numbers 255, 269, 275 operations 87 latent electrostatic image 92 leading edge detection operations 94, 96 ADF 83 LEDs, printer control panel error messages 178 left and right support covers removing 139 left plate assembly, removing 162 length, product 19, 30 lenses, operations 92 letterhead, loading 50 life expectancies extending toner cartridge 78 high-capacity print cartridges 18 recycling used print cartridges 25 lift plate diagrams and part numbers 263, 269, 275 operations 94 light copies or scans, troubleshooting 195 lights, printer control panel error messages 178 lines, troubleshooting copies or scans 193, 194, 195 printed pages 189 lists, part numbers alphabetical 266 numerical 271 LIU 76 safety isolation circuitry 101 safety protection 102 LIU functions and operation 100 LIU in the fax subsystem 101 LIU, locating 17 loading originals 51– 53 loading media 49 loads, ECU 86 long pages, copying or scanning 199 loose toner, troubleshooting 191 lower metal shield, pickup assembly 156 LPT ports, troubleshooting 177 LSTR (Last Rotation Period) 98 I I/O, Enhanced 79 idle mode, power consumption 20 image density troubleshooting 189 voltage operations 89 image formation process operations 91, 92 testing 201 image quality, troubleshooting copies and scans 194 printed pages 188 repetitive image defect ruler 236 image sensor troubleshooting 195 indicator lights, printer control panel error messages 178 initializing 233 input trays.
See main input tray; priority input tray inserting media 49 interface accessories, ordering 243 internal components, diagrams and part numbers 254 INTR (Initial Rotation Period) 98 isolated job settings 79 isopropyl alcohol, cleaning with high-voltage connection points 204, 205 pickup roller 61 printer separation pad 62 J jams ADF 199 copier/scanner 199 detection operations 96 paper input trays 198 JetDirect print servers, ordering 243 K keys, numeric see dialing keys. See buttons kick plate motion, observing 206 M machine screws 244 EN Index 281