HP LASERJET ENTERPRISE M725dn Troubleshooting Manual page 28

Figure 1-33 Skew-feed prevention ......................................................................................................... 45
Figure 1-34 Fuse and delivery block ...................................................................................................... 47
Figure 1-35 Loop control ...................................................................................................................... 48
Figure 1-36 Output bin media-full detection ............................................................................................ 49
Figure 1-37 Product engine jam detection sensors and switches ................................................................ 51
Figure 1-38 Document feeder path for single-sided documents .................................................................. 55
Figure 1-39 Document feeder path for two-sided documents ..................................................................... 56
Figure 1-40 500-sheet paper feeder paper path ..................................................................................... 57
Figure 1-41 500-sheet paper feeder signal flow ..................................................................................... 58
Figure 1-42 500-sheet paper feeder motor locations ............................................................................... 58
Figure 1-43 500-sheet paper feeder pickup and feed components ............................................................ 59
Figure 1-44 500-sheet paper feeder pickup and feed cassette pickup ....................................................... 60
Figure 1-45 500-sheet paper feeder lift-up operation ............................................................................... 61
Figure 1-46 500-sheet paper feeder multiple-feed prevention ................................................................... 63
Figure 1-47 500-sheet paper feeder cassette jam detection sensor ............................................................ 63
Figure 1-48 Paper deck paper path ...................................................................................................... 66
Figure 1-49 Paper deck signal flow ....................................................................................................... 67
Figure 1-50 Paper deck motors ............................................................................................................. 69
Figure 1-51 Paper deck pickup-and-feed components .............................................................................. 70
Figure 1-52 Paper deck lift-up operation ................................................................................................ 72
Figure 1-53 Paper deck jam detection sensors ........................................................................................ 73
Figure 1-54 HCI paper path ................................................................................................................. 75
Figure 1-55 HCI signal flow ................................................................................................................. 76
Figure 1-56 HCI motors ....................................................................................................................... 77
Figure 1-57 HCI pickup-and-feed operation ............................................................................................ 78
Figure 1-58 HCI lift-up operation .......................................................................................................... 80
Figure 1-59 HCI jam detection sensors .................................................................................................. 82
Figure 1-60 Duplexer paper path .......................................................................................................... 84
Figure 1-61 Duplexer signal flow .......................................................................................................... 85
Figure 1-62 Duplexer motor ................................................................................................................. 86
Figure 1-63 Duplexer fan ..................................................................................................................... 87
Figure 1-64 Duplexer reverse-and-feed operation .................................................................................... 88
Figure 1-65 Duplexer side misregistration detection ................................................................................ 90
Figure 1-66 Duplexer jam detection sensors ........................................................................................... 92
Figure 1-67 Stapler/stacker paper path ................................................................................................. 94
Figure 1-68 Stapler/stacker signal flow ................................................................................................. 95
Figure 1-69 Stapler/stacker motor locations ........................................................................................... 96
Figure 1-70 Stapler/stacker feed and delivery operation ......................................................................... 98
Figure 1-71 Staple mode mode begins ................................................................................................ 100
Figure 1-72 Jogger guide in the waiting position .................................................................................. 101
Figure 1-73 Alignment-alienation motor separates output rollers .............................................................. 102
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