Pickup and feed system ...................................................................................................................... 50 Manual feed slot pickup mechanism .................................................................................. 51 Paper feed mechanism ....................................................................................................... 52 Skew correction by the registration shutter ........................................................................ 52 Jam detection ......................................................................................................................
53 Printed circuit assembly locations ....................................................................................... 53 250-sheet tray solenoid and printed circuit locations ......................................................... 54 Scanner system ................................................................................................................................... 56 Scanner power-on sequence of events .............................................................................. 56 Copy or scan-to-computer sequence of events ..................................................................
57 Service-only tools ................................................................................................................................ 58 General timing chart ............................................................................................................ 58 Printer calibration ................................................................................................................ 59 5 Removal and replacement Overview ..............................................................................................................................................
62 Service approach ................................................................................................................................. 63 Pre-service procedures ....................................................................................................... 63 Post-repair tests .................................................................................................................. 63 Removal and replacement procedures ............................................................................................... 65 Print cartridge replacement .................................................................................................
66 ETB removal and replacement ........................................................................................... 69 Scanner removal and replacement ..................................................................................... 78 Face-up mechanism removal and replacement ................................................................. 80 Upper-cover assembly removal and replacement .............................................................. 82 Side cover removal and replacement .................................................................................
82 Fuser removal and replacement ......................................................................................... 84 Formatter removal and replacement .................................................................................. 90 DC controller removal and replacement ............................................................................. 92 Separation assembly removal and replacement ................................................................ 95 Paper-pickup roller removal and replacement ....................................................................
96 Control panel removal and replacement ............................................................................. 99 Memory-card assembly removal and replacement (HP Color LaserJet CM1017 MFP only) .................................................................................................................................. 100 Memory-card-reader cover removal and replacement ..................................................... 102 Scanner lid removal and replacement ..............................................................................
103 6 Troubleshooting Unpack/power-on checklist ................................................................................................................ 106 Control-panel messages .................................................................................................................... 108 Clearing jams ..................................................................................................................................... 118 Where to look for jams ......................................................................................................
118 Clear jams from inside the MFP ....................................................................................... 119 Clear jams from tray output area ...................................................................................... 121 Clear jams from the back of the MFP ............................................................................... 122 Clear jams from tray 2 or optional tray 3 .......................................................................... 123 E-Label-reader guide pin damage .....................................................................................................
125 Print problems .................................................................................................................................... 126 Print-quality problems ....................................................................................................... 126 Identifying and correcting print defects ............................................................ 126 ENWW v