HP 1200 Service Manual - Page 199

delivery sensor, paper (PS401) feeding operations 67 jam detection operations 69 delivery-stationary jams 69 density operations 63 troubleshooting 139 developing roller 63 developing stage, image formation process 65 dimensions, product 16, 28 DIMMs part numbers 169 slots 14 troubleshooting 134 Director, HP LaserJet 32, 131 document feeder, optional copier/scanner capacity 14 feeding problems, troubleshooting 148 documentation ordering 168 doors copier/scanner 22 toner cartridge 20, 91 DOS commands, PJL 158 dots per inch, maximum 14 dots, troubleshooting printed pages 139, 142 scanned images 144 dpi, maximum 14 draft mode 56 DRAM, formatter 55 drive roller, observing 155 drivers, ordering 168 dropouts, troubleshooting 139, 141 drum inspecting 137 operations 64, 65, 66 rotation functional check 151 troubleshooting 139 drum cleaning stage, image formation process 66 duty cycle 14 dynamic random access memory (DRAM), formatter 55 E EconoMode 56 ECP (Extended Capabilities Port) interface 55 ECU cables 122 electrical components 181 errors 135 functions 59 jam detection operations 69 laser/scanner operations 61 loads 60 paper feeding operations 67 power system 62 removing 79, 120 troubleshooting 130 edges, not printing 138, 143 electrical components, diagrams and part numbers 180 electrical specifications 17 electrophotographic processes operations 64, 65 testing 150 electrostatic discharge (ESD), precautions for 77 element, heating check 152 operations 66 engine control unit. See ECU engine test performing 149 troubleshooting 130 Enhanced I/O 56 envelopes loading 35 selecting 33 environmental specifications 16, 28 error light. See Attention light error messages 132 ESC commands 158 ESD (electrostatic discharge), precautions for 77 exit rollers, fuser assembly 67 exit sensor, paper. See delivery sensor, paper (PS401) Extended Capabilities Port (ECP) interface 55 extended warranty 24 F face-down delivery assembly, removing 105 face-up roller, removing 106 factory defaults, restoring 156 fan assembly errors 136 removing 110 fasteners, types of 171 fatal errors, troubleshooting 134, 136 features firmware 15 hardware 14 HP LaserJet Director 32 feed assembly drive rollers 67 EN Index 197