User Guide
Figure 1-33 Tray lift mechanism ............................................................................................................ 44
Figure 1-34 Paper-level-detection mechanism .......................................................................................... 45
Figure 1-35 Multifeed prevention .......................................................................................................... 45
Figure 1-36 Multipurpose tray pickup mechanism ................................................................................... 46
Figure 1-37 Paper-feed mechanism ....................................................................................................... 47
Figure 1-38 Skew-feed prevention ......................................................................................................... 48
Figure 1-39 Fuser and delivery unit ....................................................................................................... 49
Figure 1-40 Loop-control mechanism ..................................................................................................... 50
Figure 1-41 Pressure-roller pressurization control .................................................................................... 51
Figure 1-42 Duplexing unit ................................................................................................................... 52
Figure 1-43 Jam detection sensors ........................................................................................................ 54
Figure 1-44 Optional paper feeder ....................................................................................................... 56
Figure 1-45 Signals for the paper feeder ............................................................................................... 57
Figure 1-46 Paper-feeder pickup and feed operation ............................................................................... 58
Figure 1-47 Paper size detection .......................................................................................................... 59
Figure 1-48 Paper-feeder lift ................................................................................................................. 61
Figure 1-49 Paper-feeder multiple feed prevention .................................................................................. 62
Figure 1-50 Jam detection .................................................................................................................... 64
Figure 1-51 Document feeder sensors (M575dn and 575f models) ........................................................... 66
Figure 1-52 Document feeder paper path (M575dn and 575f models) ...................................................... 67
Figure 1-53 Document feeder simplex operation (M575dn and 575f models) ............................................ 68
Figure 1-54 Document feeder duplex operation (first paper path; M575dn and 575f models) ...................... 69
Figure 1-55 Document feeder duplex operation (M575dn and 575f models) ............................................. 70
Figure 1-56 Document feeder sensors (M575c model) ............................................................................. 73
Figure 1-57 Document feeder paper path (M575c model) ....................................................................... 74
Figure 1-58 Document feeder deskew features ....................................................................................... 77
Figure 1-59 Document feeder open (book mode) .................................................................................... 78
Figure 1-60 Document feeder open (60º to 80º) ..................................................................................... 79
Figure 2-1 Diagnostic test (1 of 3) ....................................................................................................... 103
Figure 2-2 Diagnostic test (2 of 3) ....................................................................................................... 103
Figure 2-3 Dia
gnostic test (3 of 3) ....................................................................................................... 104
Figure 2-4 Engine-test button .............................................................................................................. 105
Figure 2-5 Test the front door switch (1 of 4) ........................................................................................ 109
Figure 2-6 Test the front door switch (2 of 4) ........................................................................................ 109
Figure 2-7 Test the front door switch (3 of 4) ........................................................................................ 110
Figure 2-8 Test the front door switch (4 of 4) ........................................................................................ 110
Figure 2-9 Test the registration sensor .................................................................................................. 111
Figure 2-10 Test the fuser loop sensors ................................................................................................ 112
Figure 2-11 Test the fuser pressure-release sensor (1 of 2) ...................................................................... 113
Figure 2-12 Test the fuser pressure-release sensor (2 of 2) ...................................................................... 113
Figure 2-13 Test the fuser output sensor (1 of 2) .................................................................................... 115
xxiv ENWW










