HP — HP Color LaserJet Enterprise M651 and HP Color LaserJet Enterprise MFP M680 - Repair Service Manual

Before proceeding, remove the following assemblies ................................................ 248 Remove the fuser motor .............................................................................................. 249 ITB motor ......................................................................................................................................... 250 Before proceeding, remove the following assemblies ................................................ 250 Remove the ITB motor ..................................................................................................

251 Main-drive assembly ....................................................................................................................... 252 Before proceeding, remove the following assemblies ................................................ 252 Remove the main-drive assembly ............................................................................... 252 Reinstall the main-drive assembly ............................................................ 257 Fuser drive assembly ......................................................................................................................

262 Before proceeding, remove the following assemblies ................................................ 262 Remove the fuser drive assembly ................................................................................ 262 Reinstall the fuser drive assembly ............................................................................... 266 Optional input and output accessories ............................................................................................................. 267 1x500-sheet paper feeder ..............................................................................................................

267 Rear cover (1x500-sheet paper feeder) ....................................................................... 270 Front upper cover (1x500-sheet paper feeder) ........................................................... 269 Left cover (1x500-sheet paper feeder) ........................................................................ 271 Before proceeding, remove the following assemblies ............................. 271 Remove the left cover (1x500-sheet paper feeder) ................................. 271 Right-front cover (1x500-sheet paper feeder) ............................................................

272 Before proceeding, remove the following assemblies ............................. 272 Remove the right-front cover (1x500-sheet paper feeder) ..................... 272 Right cover (1x500-sheet paper feeder) ..................................................................... 273 Before proceeding, remove the following assemblies ............................. 273 Paper-pickup assembly (1x500-sheet paper feeder) ................................................. 274 Remove the right cover (1x500-sheet paper feeder) ............................... 273 Before proceeding, remove the following assemblies .............................

274 Remove the pickup assembly (1x500-sheet paper feeder) ...................... 274 Lifter base assembly (1x500-sheet paper feeder) ...................................................... 277 Remove the lifter base assembly (1x500-sheet paper feeder) ................ 277 Before proceeding, remove the following assemblies ............................. 277 Reinstall the lifter base assembly ............................................................. 278 Lifter assembly (1x500-sheet paper feeder) ............................................................... 279 Before proceeding, remove the following assemblies .............................

279 Pickup motor assembly (1x500-sheet paper feeder) ................................................. 280 Remove the lifter assembly (1x500-sheet paper feeder) ........................ 279 Before proceeding, remove the following assemblies ............................. 280 Remove the pickup motor assembly (1x500-sheet paper feeder) ........... 280 Feeder PCA (1x500-sheet paper feeder) ..................................................................... 281 Before proceeding, remove the following assemblies ............................. 281 ENWW xi