Post-service test ............................................................................................................................... 101 Print-quality test ............................................................................................................... 101 Print cartridge ................................................................................................................................... 102 Tray 2 cassette .................................................................................................................................
103 Rollers and pads .............................................................................................................................. 104 Pickup roller; Tray 1 ......................................................................................................... 104 Pickup roller assembly; Tray 2 ......................................................................................... 107 Separation-pad assembly; Tray 2 .................................................................................... 110 Transfer roller ..................................................................................................................
111 External panels, covers, and doors .................................................................................................. 114 DIMM door (HP LaserJet P2050 Series only) .................................................................. 114 Right cover ....................................................................................................................... 115 Reinstall the right cover ................................................................................... 117 Left cover .........................................................................................................................
118 Rear cover, rear door, and duplex-paper-feed assembly ................................................ 120 Top-cover assembly ........................................................................................................ 124 Cartridge-door assembly and front cover ........................................................................ 127 Reinstall the cartridge-door assembly and front cover .................................... 129 Internal assemblies ..........................................................................................................................
130 Formatter PCA; HP LaserJet P2030 Series .................................................................... 130 Formatter PCA; HP LaserJet P2050 Series .................................................................... 132 Paper-pickup-gear assembly ........................................................................................... 134 Reinstall the paper-pickup-gear assembly ...................................................... 135 Cartridge-door switch .......................................................................................................
137 Tray 1 pickup solenoid ..................................................................................................... 138 Fan ................................................................................................................................... 140 Reverse-sensor assembly; HP LaserJet P2050 Series ................................................... 142 Power-switch assembly ................................................................................................... 144 Connecting PCA ..............................................................................................................
147 Inlet-cable assembly ........................................................................................................ 150 Registration assembly ..................................................................................................... 152 Laser/scanner assembly .................................................................................................. 156 Fuser ................................................................................................................................ 158 Reinstall the fuser ...........................................................................................
162 Engine controller unit (ECU) ............................................................................................ 163 Reinstall the ECU ............................................................................................ 170 Paper-feed-guide assembly ............................................................................................. 172 Main motor ....................................................................................................................... 174 Face-down-drive or duplexing-paper-feed assembly .......................................................
177 Duplex solenoid; HP LaserJet P2050 Series ................................................................... 180 Paper-retaining-delivery assembly .................................................................................. 181 7 Solve problems ENWW vii