G gear train motor, removing 124 glossy paper 44 graph, calibration 192 group dial report 182 guides, removing internal 94 upper assembly 108 internal paper guide, removing 94 INTR (Initial Rotation Period) 82 isopropyl alcohol, cleaning with 57 J jams feeding problems, troubleshooting 164 frequent 165 preventing 44, 48 sensors 79 JetDirect print servers, ordering 202 H half self-test functional check 168 halftone resolution 17 hardware capabilities 14 headers, fax menu 34 heating element life expectancy 52 removing 119 testing 170 height 16 high-voltage power supply power distribution 73 testing 171, 172 voltage 72 horizontal orientation 48 horizontal streaks, troubleshooting 160 HP JetDirect print servers, ordering 202 HP LaserJet paper 43 HP Multipurpose paper 43 humidity 16 K keypad, one-touch 32 keys, control panel 31 kick plate operations 77 removing 134 testing 173 kits, tray 206 L labels 44 landscape orientation 48 laser beam, operations 75 Laser/Beam Detect Circuitry voltage 72 laser/scanner assembly removing 113 service precautions 87 LaserJet paper 43 latches, printer door release 20 LCD test 176 leading edge, detecting 77 LED test 176 LEDs, operations 63 left side cover, removing 93 lenses 75 letterhead, printing 49 lever, special media identifying 21 using 47 life expectancies, consumables 52 light-emitting diodes (LEDs), operations 63 lightness.
See contrast lights, control panel 31 lightweight media loading 46 troubleshooting 166 lines, troubleshooting black 159 calibration graph 192 white 158 LIU (line interface unit) removing 138 I I/O, Enhanced 66 image formation operations 74 Page Protect 67 image quality, troubleshooting 157 initial residual paper jam 79 initializing 178 ink cartridges. See toner cartridges input trays capacity 14 feeding operations 77 identifying 21 loading 45, 48 media sizes 43 inserting media normal 45 paper input tray 48 special 46 installation requirements 30 interfaces, formatter 66 internal assemblies diagrams and part numbers 216 removing 113 242 Chapter - Index EN