HP Color LaserJet Enterprise CP4020 - Page 24

Figure 1-35 Cassette lift mechanism ................................................................................................................ 43
Figure 1-36 Multiple-feed prevention ................................................................................................................ 44
Figure 1-37 Multipurpose tray pickup mechanism ............................................................................................ 45
Figure 1-38 Paper-feed mechanism ................................................................................................................. 46
Figure 1-39 Skew-feed prevention ................................................................................................................... 47
Figure 1-40 Fuser and delivery unit .................................................................................................................. 49
Figure 1-41 Loop-control mechanism ............................................................................................................... 50
Figure 1-42 Pressure-roller pressurization control ........................................................................................... 51
Figure 1-43 Duplexing unit ............................................................................................................................... 52
Figure 1-44 Duplex reverse and feed control ................................................................................................... 53
Figure 1-45 Jam detection sensors .................................................................................................................. 55
Figure 1-46 1 x 500 optional paper feeder ....................................................................................................... 57
Figure 1-47 3 x 500-sheet optional paper feeder ............................................................................................. 58
Figure 1-48 Signals for the paper feeder ......................................................................................................... 58
Figure 1-49 Paper-feeder pickup and feed operation ...................................................................................... 60
Figure 1-50 Paper-feeder cassette lift ............................................................................................................. 63
Figure 1-51 Jam detection (1 x 500-sheet paper feeder) ................................................................................. 64
Figure 1-52 Jam detection (3 x 500-sheet paper feeder) ................................................................................. 65
Figure 2-1 Phillips and pozidrive screwdriver comparison ............................................................................... 69
Figure 2-2 Parts removal order (1 of 2) ............................................................................................................ 72
Figure 2-3 Parts removal order (2 of 2) ............................................................................................................ 73
Figure 2-4 Remove the print cartridge (1 of 2) ................................................................................................. 74
Figure 2-5 Remove the print cartridge (2 of 2) ................................................................................................. 75
Figure 2-6 Remove the toner-collection unit (1 of 4) ........................................................................................ 76
Figure 2-7 Remove the toner-collection unit (2 of 4) ........................................................................................ 76
Figure 2-8 Remove the toner-collection unit (3 of 4) ........................................................................................ 77
Figure 2-9 Remove the toner-collection unit (4 of 4) ........................................................................................ 77
Figure 2-10 Remove the formatter ................................................................................................................... 78
Figure 2-11 Remove the hard drive (1 of 3) ..................................................................................................... 79
Figure 2-12 Remove the hard drive (2 of 3) ..................................................................................................... 79
Figure 2-13 Remove the hard drive (3 of 3) ..................................................................................................... 80
Figure 2-14 Remove the memory DIMM (1 of 2) .............................................................................................. 81
Figure 2-15 Remove the memory DIMM (2 of 2) .............................................................................................. 82
Figure 2-16 Remove the tray (1 of 2) ............................................................................................................... 84
Figure 2-17 Remove the tray (2 of 2) ............................................................................................................... 84
Figure 2-18 Remove the fuser (1 of 2) ............................................................................................................. 85
Figure 2-19 Remove the fuser (2 of 2) ............................................................................................................. 85
Figure 2-20 Remove the Pickup and feed rollers (Trays 2-5) .......................................................................... 86
Figure 2-21 Remove the pickup roller (Tray 1) (1 of 5) .................................................................................... 87
Figure 2-22 Remove the pickup roller (Tray 1) (2 of 5) .................................................................................... 87
Figure 2-23 Remove the pickup roller (Tray 1) (3 of 5) .................................................................................... 88
Figure 2-24 Remove the pickup roller (Tray 1) (4 of 5) .................................................................................... 88
Figure 2-25 Remove the pickup roller (Tray 1) (5 of 5) .................................................................................... 89
Figure 2-26 Remove the transfer roller (1 of 3) ................................................................................................ 90
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