Figure 3-6 Test the loop sensors .................................................................................................................... 248
Figure 3-7 Test the fuser delivery sensor (1 of 2) .......................................................................................... 249
Figure 3-8 Test the fuser delivery sensor (2 of 2) .......................................................................................... 249
Figure 3-9 Test the duplex re-pickup sensor .................................................................................................. 250
Figure 3-10 Test the output-bin-full sensor .................................................................................................... 251
Figure 3-11 Test the fuser pressure-release sensor ...................................................................................... 253
Figure 3-12 Test the primary transfer-roller-disengagement sensor (1 of 4) ................................................. 254
Figure 3-13 Test the primary transfer-roller-disengagement sensor (2 of 4) ................................................. 254
Figure 3-14 Test the primary transfer-roller-disengagement sensor (3 of 4) ................................................. 255
Figure 3-15 Test the primary transfer-roller-disengagement sensor (4 of 4) ................................................. 255
Figure 3-16 Media sensor .............................................................................................................................. 256
Figure 3-17 Test the front-door switch ........................................................................................................... 257
Figure 3-18 Test the right door switch ............................................................................................................ 258
Figure 3-19 Test the Tray 1 media-present sensor ....................................................................................... 261
Figure 3-20 Test the tray 2 paper-present sensor ......................................................................................... 262
Figure 3-21 Tray 2 paper surface 1 and 2 ...................................................................................................... 263
Figure 3-22 Test the Tray 2 paper size switches ........................................................................................... 264
Figure 3-23 Test the Tray 3 feed sensor ........................................................................................................ 265
Figure 3-24 Test the new ITB sensor ............................................................................................................. 271
Figure 3-25 Test the new ITB sensor ............................................................................................................. 271
Figure 3-26 Test the right door switch ............................................................................................................ 272
Figure 3-27 Product cross section .................................................................................................................. 277
Figure 3-28 Optional paper feeder (1 x 500-sheet) ........................................................................................ 278
Figure 3-29 Optional paper feeder (3 x 500-sheet) ........................................................................................ 279
Figure 3-30 Formatter PCA ............................................................................................................................ 280
Figure 3-31 DC controller connector locations ............................................................................................... 281
Figure 3-32 Controller PCA connectors ......................................................................................................... 283
Figure 3-33 External component locations ..................................................................................................... 284
Figure 3-34 Major component locations (1 of 3) ............................................................................................ 285
Figure 3-35 Major component locations (2 of 3) ............................................................................................ 286
Figure 3-36 Major component locations (3 of 3) ............................................................................................ 287
Figure 3-37 Motors, fans, and rollers component locations ........................................................................... 288
Figure 3-38 PCA component locations .......................................................................................................... 289
Figure 3-39 Optional paper feeder (1 x 500-sheet) component locations (1 of 2) ......................................... 290
Figure 3-40 Optional paper feeder (1 x 500-sheet) component locations (2 of 2) ......................................... 291
Figure 3-41 Optional paper feeder (3 x 500-sheet) component locations (1 of 2) ......................................... 292
Figure 3-42 Optional paper feeder (3 x 500-sheet) component locations (2 of 2) ......................................... 293
Figure 3-43 General timing chart .................................................................................................................... 294
Figure 3-44 General circuit diagram (1 of 2) .................................................................................................. 295
Figure 3-45 General circuit diagram (1 of 2) .................................................................................................. 295
Figure 3-46 Paper feeder circuit diagram (1 X 500-sheet) ............................................................................. 296
Figure 3-47 Paper feeder circuit diagram (3 X 500-sheet) ............................................................................. 297
Figure 3-48 Print-quality troubleshooting procedure ...................................................................................... 302
Figure 3-49 Yellow print-quality troubleshooting page ................................................................................... 303
xxviii ENWW
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