Lexmark C520 Service Manual - Page 371

5022-xxx paper path diagram 3-30, 3-31 main components 3-32 mechanical drive 3-37 paper sensing 3-42 print media transport 3-33 paper pick mechanism parts catalog 7-4 removal 4-68 Paper Prompts 3-24 paper sensing paper exit/duplex entry sensor and bin full flag 3-43 paper pick sensor 3-42 parts catalog cable parts packet 7-18 contact springs 7-16 CRUs 7-14 front 7-4 left 7-10 miscellaneous 7-20 rear 7-8 right 7-6 top 7-12 Perm Page Count 3-16 photoconductor unit 4-2 handling 4-2 installation 4-70 locations 5-7 parts not to be touched 4-2 removal 4-70 transportation/storage 4-2 Pick roll tires, replacement 4-71 power cords 7-15 power-on self test (POST) sequence 2-5 PPDS Emulation 3-22 print area 1-12 print quality background 2-55 blank page 2-56 blurred or fuzzy print 2-58 half-color page 2-58 horizontal banding 2-58 horizontal line 2-58 insufficient fusing 2-58 missing image at edge 2-58 mottle (2 - 5mm speckles) 2-58 narrow vertical line 2-58 random marks 2-59 residual image 2-59 solid color page 2-60 vertical banding 2-61 printer pads parts catalog 7-4 removal 4-73 printhead locations 5-4 parts catalog 7-8 removal 4-74 printhead alignment 4-3 I-4 Service Manual Prt Color Pg Count 3-16 Prt Mono Pg Count 3-16 Prt Quality Pgs configuration menu 3-21 diagnostic menu 3-10 Q Quick Test (duplex) 3-12 R removal and cleaning precautions 4-1 removals bin full sensor 4-38 bin full sensor removal 4-37 bump aligner gear 4-39 bump aligner motor 4-40 bump aligner rollers and springs-C53x 4-42 contact springs 4-44 covers exit tray cover 4-15 front access cover assembly 4-16 gearbox shield 4-19 left cover 4-20 operator panel assembly 4-23 operator panel inner bezel-C52x 4-22 operator panel outer bezel 4-21 rear cover 4-25 right cover 4-26 top access cover assembly-C52x 4-28 top access cover assembly-C53x 4-32 deflector assembly-C53x only 4-46 electrophotographic (EP) process drive assembly- C52x 4-48 electrophotographic (EP) process drive assembly- C53x 4-51 front access door 5 V interlock switch 4-54 front door assembly 4-55 front door assembly restraint cable 4-59 fuser 4-60 fuser cable cover 4-61 high voltage power supply (HVPS) 4-62 left bellcrank 4-64 low voltage power supply (LVPS) 4-65 multipurpose feeder (MPF) swing arm assembly-C52x only 4-67 paper pick mechanism assembly 4-68 paper tray dust cover 4-24 photoconductor unit 4-70 pick roll rubber tires 4-71 precautions 4-13 printer pad 4-73 printhead 4-74 right bellcrank 4-77 smart chip card-C52x 4-78 system card 4-79 system card support shield 4-81 toner level sensor 4-83 top access door 24 V interlock switch 4-85 top cover camshaft assembly 4-86 transfer belt 4-91