Figure 2-63 External plug and port locations (M631, M632, and M633) ........................................................................ 172
Figure 2-64 Printer base (M607, M608, and M609), main assemblies (1 of 2) ............................................................... 173
Figure 2-65 Printer base (M607, M608, and M609), main assemblies (2 of 2) ............................................................... 174
Figure 2-66 Printer base (M631, M632, and M633), main assemblies (1 of 2) ............................................................... 175
Figure 2-67 Printer base (M631, M632, and M633), main assemblies (2 of 2) ............................................................... 176
Figure 2-68 Printer base, printed circuit assemblies (PCAs) ............................................................................................ 176
Figure 2-69 Printer base (M607, M608, and M609), roller assemblies ........................................................................... 177
Figure 2-70 Printer base (M631, M632, and M633), roller assemblies ........................................................................... 178
Figure 2-71 1x550-sheet paper feeder, main assemblies .............................................................................................. 179
Figure 2-72 1x550-sheet paper feeder (M631/M632/M633 envelope feeder), main assemblies ................................. 180
Figure 2-73 1x550-sheet paper feeder, printed circuit assemblies (PCAs) .................................................................... 181
Figure 2-74 1x550-sheet paper deck, main assemblies (1 of 2) ..................................................................................... 182
Figure 2-75 1x550-sheet paper deck, main assemblies (2 of 2) ..................................................................................... 183
Figure 2-76 1x550-sheet paper deck, printed circuit assemblies (PCAs) ....................................................................... 184
Figure 2-77 3x550-sheet paper deck, main assemblies (1 of 2) ..................................................................................... 185
Figure 2-78 3x550-sheet paper deck, main assemblies (2 of 2) ..................................................................................... 186
Figure 2-79 3x550-sheet paper deck, printed circuit assemblies (PCAs) ....................................................................... 187
Figure 2-80 2,100-sheet paper deck (M607/M608/M609), main assemblies ................................................................ 188
Figure 2-81 2,100-sheet paper deck (M607/M608/M609), printed circuit assemblies (PCAs) ...................................... 189
Figure 2-82 2,550-sheet paper deck (M631/M632/M633), main assemblies (1 of 2) .................................................... 190
Figure 2-83 2,550-sheet paper deck (M631/M632/M633), main assemblies (2 of 2) .................................................... 191
Figure 2-84 2,550-sheet paper deck (M631/M632/M633), printed circuit assemblies (PCAs) ...................................... 192
Figure 2-85 General timing chart ..................................................................................................................................... 193
Figure 2-86 General circuit diagram for the printer base (M607, M608, and M609) ...................................................... 194
Figure 2-87 General circuit diagram for the printer base (M631, M623, and M633) ...................................................... 195
Figure 2-88 General circuit diagram for the 550-sheet paper feeder ............................................................................. 196
Figure 2-89 General circuit diagram for the 1x550-sheet and 3x-550-sheet paper deck ............................................. 197
Figure 2-90 General circuit diagram for the 2,100-sheet paper deck ............................................................................. 198
Figure 2-91 General circuit diagram for the 2,550-sheet paper deck ............................................................................. 199
Figure 2-92 General circuit diagram for the 5 bin stapler stacker multi-bin mail box .................................................... 200
Figure 2-93 General circuit diagram for the 2 bin stapler stacker multi-bin mail box .................................................... 201
Figure 2-94 Conguration report ..................................................................................................................................... 203
Figure 2-95 Wireless page (1 of 2) ................................................................................................................................... 204
Figure 2-96 Wireless page (2 of 2) ................................................................................................................................... 205
Figure 2-97 HP embedded Jetdirect page ........................................................................................................................ 206
Figure 2-98 Fax accessory page (1 of 2) .......................................................................................................................... 207
Figure 2-99 Fax accessory page (2 of 2) .......................................................................................................................... 208
Figure 2-100 Fuser test page ........................................................................................................................................... 211
Figure 2-101 Examples of repetitive defects ................................................................................................................... 260
Figure 2-102 Place the ruler on the page ......................................................................................................................... 261
Figure 2-103 Locate the next repetitive defect ............................................................................................................... 261
xxii ENWW