HP LaserJet 4250 Service Manual - Page 536

top output bin locating 9 settings 69 transfer roller image-formation operations 153 locating 411 operations 106 replacing 177 transparencies fuser modes 71 print quality, troubleshooting 378 specifications 36 tray 1 custom-size settings 69 jam detection operations 123 jams 371 locating 9 paper sensor (PS105), removing 272 paper supported 26 paper-pickup assembly, removing 257 pickup and feed operations 114, 117 pickup assembly 410 pickup assembly, diagrams and part numbers 480 pickup roller, locating 411 pickup roller, replacing 179 pickup solenoid (SL102), removing 276 printing from 74 registration settings 71 removing 200 separation pad, replacing 181 setting size 64 settings 64 tray 2 custom-size settings 69 extension door, removing 187 feed rollers, replacing 182 jam detection operations 123 jams 372 lifter-drive assembly, removing 227 media size detection 119 media-size sensor (PS101), removing 269 paper specifications 27 pickup and feed operations 114, 119 pickup solenoid (SL101) removing 275 printing from 74 registration settings 71 settings 65 trays cabinet stand, unlocking 172 configuration page 312 custom-size settings 69 included 2 locating 9 media supported 26 paper path test 80, 369 paper specifications 27, 28 pickup and feed operations 114, 125 registration settings 71 selecting 74 settings 64 specifications 25 troubleshooting about 302 black pages 398 blank pages 399 blurred print 397 checklist 303 communications 331 curled media 393 dark print 400 distorted images 391 dots 385 dropouts 386 engine-test 329 error messages 333 event log 80 firmware updates 102 flowchart 305 formatter test 330 grey background 388 information pages 310 jams 365 light print 383 lines 72, 387, 396, 397 multiple pages feeding 375 paper 32, 38 paper path 369 power-on 306 power-on bypass 328 print cartridge 380 print quality 377, 382 process 303 removing parts 168 repeating defects 390, 400 skew 376, 391 stacker and stapler/stacker 402 toner smear 389 transparencies 378 white lines 394 white spots 396 wrinkled media 375, 394 U UNIX carriage return settings 70 downloading firmware 93 Model Scripts 13 unlocking cabinet stand 172 updating firmware DIMMs 164, 210 downloading 91 FTP 93 HP LaserJet Utility 98 HP Web JetAdmin 100 LPR command 99 messages 101 troubleshooting 102 UNIX 93 Windows local port 92 Windows network 93 usage page 63 USB port locating 11 operations 162 V voltage specifications 20 W warnings setting 75 warranty print cartridge 41 product 39 Web JetAdmin firmware updates 100 Web sites environmental topics 46 firmware updates 91 HP Partner Portal 445 522