Figure 5-117 Remove the 500-sheet feeder left cover (4 of 5).........................................................................160 Figure 5-118 Remove the 500-sheet feeder left cover (5 of 5).........................................................................160 Figure 5-119 Remove the 500-sheet feeder rear cover (1 of 3).......................................................................161 Figure 5-120 Remove the 500-sheet feeder rear cover (2 of 3).......................................................................162 Figure 5-121 Remove the 500-sheet feeder rear cover (3 of 3).......................................................................162 Figure 5-122 Remove the 500-sheet-feeder driver PCA (1 of 2)......................................................................163 Figure 5-123 Remove the 500-sheet-feeder driver PCA (2 of 2)......................................................................164 Figure 5-124 Remove the media sensor (500-sheet feeder) (1 of 4)...............................................................165 Figure 5-125 Remove the media sensor (500-sheet feeder) (2 of 4)...............................................................166 Figure 5-126 Remove the media sensor (500-sheet feeder) (3 of 4)...............................................................166 Figure 5-127 Remove the media sensor (500-sheet feeder) (4 of 4)...............................................................167 Figure 6-1 Jam locations (printer shown without optional tray 3).................................................................195 Figure 6-2 Repetitive defect ruler.................................................................................................................221 Figure 6-3 Door switch and fuser interlock...................................................................................................227 Figure 6-4 Engine test page.........................................................................................................................233 Figure 6-5 Printer connector locations..........................................................................................................238 Figure 6-6 500-sheet tray connector locations.............................................................................................239 Figure 6-7 Major assemblies (1 of 5)............................................................................................................240 Figure 6-8 Major assemblies (2 of 5)............................................................................................................241 Figure 6-9 Major assemblies (3 of 5)............................................................................................................242 Figure 6-10 Major assemblies (4 of 5)............................................................................................................243 Figure 6-11 Major assemblies (5 of 5)............................................................................................................244 Figure 6-12 DC controller connectors.............................................................................................................245 Figure 6-13 Timing diagram (HP LaserJet 3000/3800)..................................................................................246 Figure 6-14 Timing diagram (HP LaserJet 3600)...........................................................................................247 Figure 6-15 General circuit diagram (1 of 2)...................................................................................................249 Figure 6-16 General circuit diagram (2 of 2)...................................................................................................250 Figure 7-1 External panels and covers (1 of 2)............................................................................................258 Figure 7-2 External panels and covers (2 of 2)............................................................................................260 Figure 7-3 Front-cover assembly (simplex model).......................................................................................262 Figure 7-4 Front-cover assembly (duplex model).........................................................................................264 Figure 7-5 Internal components (1 of 5).......................................................................................................266 Figure 7-6 Internal components (2 of 5).......................................................................................................268 Figure 7-7 Internal components (3 of 5).......................................................................................................270 Figure 7-8 Internal components (4 of 5).......................................................................................................272 Figure 7-9 Internal components (5 of 5).......................................................................................................274 Figure 7-10 Paper-pickup drive assembly......................................................................................................276 Figure 7-11 Duplexing-feed drive assembly (duplex models)........................................................................278 Figure 7-12 Duplexing reverse-drive assembly (duplex models)...................................................................280 Figure 7-13 Developing separation-drive assembly.......................................................................................282 Figure 7-14 Fuser drive assembly..................................................................................................................284 Figure 7-15 Cassette (tray 2)..........................................................................................................................286 Figure 7-16 Paper-pickup assembly (HP CLJ 3600/3800).............................................................................288 Figure 7-17 Paper-pickup assembly (HP CLJ 3000)......................................................................................290 Figure 7-18 Electronic transfer belt (simplex models)....................................................................................292 Figure 7-19 Electronic transfer belt (duplex models)......................................................................................294 Figure 7-20 Multipurpose tray assembly (tray 1)............................................................................................296 Figure 7-21 Duplex-paper feed assembly (duplex models)............................................................................298 Figure 7-22 Fuser...........................................................................................................................................300 Figure 7-23 PCAs...........................................................................................................................................302 xvi ENWW