Manuale Di ServizioSommarioTheory of operation19Basic operation20Major product systems20Product block diagram20Sequence of operation21Normal sequence of operation21Formatter-control system22Sleep mode22Input/output22CPU22Memory22Firmware23Memory use23PJL overview23LEDM overview23ACL overview23Control panel24Wireless PCA24Engine-control system25Motors, fans, clutches, solenoids, switches, and sensors26DC controller operations29Fuser-control circuit30Fuser failure detection31Fuser temperature control32Fuser protective function33Pressure roller cleaning33Low-voltage power supply34Overcurrent/overvoltage protection35High-voltage power supply36Laser/scanner system37Laser failure detection38Image-formation system39Electrophotographic process39Image formation process41Latent-image formation stage42Primary charging42Laser beam exposure42Developing stage43Print cartridge43Transfer stage44Fusing stage45Cleaning stage45Pickup, feed, and delivery system46Photo sensors and switches47Input tray, main-input tray, or priority input slot48Jam detection48Removal and replacement49Introduction50Removal and replacement strategy50Electrostatic discharge51Required tools51Before performing service52After performing service52Post-service test53Print-quality test53Parts removal order54Pickup roller55Separation pad56Transfer roller57Covers58Input tray or main-input tray58Output bin tray extension59Front cover60Remove the front cover60Left cover61Remove the left cover61Right cover64Remove the right cover64Cartridge door66Remove the cartridge door66Face-down cover68Remove the face-down cover68Rear cover70Remove the rear cover70Main assemblies72Formatter PCA72Remove the formatter PCA73Wireless PCA75Remove the wireless PCA75Laser/scanner assembly76Remove the laser/scanner assembly76Reinstall the laser/scanner assembly78Pickup assembly79Remove the pickup assembly79Reinstall the pickup assembly83Fuser85Remove the fuser85Reinstall the fuser89Main motor90Remove the main motor90Reinstall the main-motor drive belt94Pickup solenoid95Remove the pickup solenoid95Engine controller PCA98Remove the engine controller PCA98Reinstall the engine controller PCA102Solve problems105Solve problems checklist106Troubleshooting process109Determine the problem source109Power subsystem110Power-on checks110Tools for troubleshooting111Individual component diagnostics111Engine diagnostics111Engine-test button111Components tests112Drum rotation functional check112Half self-test functional check112Diagrams113Plug/jack locations113Location of connectors114Locations of major components115General timing charts117General circuit diagram118Internal print-quality test pages120Cleaning page120Configuration page120Print-quality troubleshooting tools121Repetitive defect ruler121Interpret control-panel light patterns121Clear jams125Common causes of jams125Jam locations126Clear jams from the input tray127Clear jams from the output areas129Clear jams from inside the product131Solve repeated jams132Change jam recovery132Solve paper-handling problems134Solve image-quality problems135Image defect table135Light print or faded135Toner specks135Dropouts136Vertical lines136Gray background136Toner smear136Loose toner137Vertical repetitive defects137Misformed characters137Page skew137Curl or wave138Wrinkles or creases138Toner scatter outline138Moisture139Optimize and improve image quality140Change print density140Clean the product141Clean the pickup roller141Clean the paper path142Clean the print-cartridge area144Clean the exterior146Solve performance problems147Solve connectivity problems148Solve direct-connect problems148Solve wireless problems148Service mode functions150Product resets150Product updates151Parts and diagrams153Order parts by authorized service providers154Order parts, accessories, and supplies154Related documentation and software154Supplies part numbers154Customer self repair parts155Service parts155Whole-unit replacement part numbers155How to use the parts lists and diagrams156Assembly locations157Base product157Covers158Base model158Wireless model160Internal assemblies162Internal assemblies (1 of 3)162Internal assemblies (2 of 3)164Internal assemblies (3 of 3)166PCAs168Alphabetical parts list170Numerical parts list173Service and support177Hewlett-Packard limited warranty statement178HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement179End User License Agreement180Customer self-repair warranty service182Customer support182Repack the product183Service information form184Specifications185Physical specifications186Power consumption186Acoustic specifications186Environmental specifications187Regulatory information189FCC regulations190Declaration of conformity (base models)191Declaration of conformity (wireless models)192Certificate of Volatility193Safety statements195Laser safety195Canadian DOC regulations195VCCI statement (Japan)195Power cord instructions195Power cord statement (Japan)195EMC statement (Korea)195Laser statement for Finland196GS statement (Germany)196Substances Table (China)197Additional statements for wireless products198FCC compliance statement—United States198Australia statement198Brazil ANATEL statement198Canadian statements198European Union regulatory notice198Notice for use in France199Notice for use in Russia199Korean statement199Taiwan statement199Index201Dimensioni: 5,24 MBPagine: 206Language: EnglishApri il manuale
