HP LASERJET PRO 400 - Page 25

Figure 2-5 Rollers .............................................................................................................................. 124
Figure 2-6 PCAs ............................................................................................................................... 125
Figure 2-7 Optional 250-sheet cassette ................................................................................................ 126
Figure 2-8 Timing diagram ................................................................................................................. 127
Figure 2-9 Circuit diagram ................................................................................................................. 128
Figure 2-10 CPU diagram ................................................................................................................. 129
Figure 2-11 ASIC diagram ................................................................................................................. 130
Figure 2-12 HVT/Toner EMP diagram ................................................................................................. 131
Figure 2-13 Driver PCA diagram ........................................................................................................ 132
Figure 2-14 Duplexer PCA diagram .................................................................................................... 133
Figure 2-15 FSR diagram ................................................................................................................... 134
Figure 2-16 Control-panel test ............................................................................................................ 175
Figure 2-17 Control-panel test ............................................................................................................ 211
Figure 3-1 Scanner and document feeder main assemblies .................................................................... 250
Figure 3-2 External panels and covers ................................................................................................. 252
Figure 3-3 Internal assemblies (1 of 7) ................................................................................................. 254
Figure 3-4 Internal assemblies (2 of 2) ................................................................................................. 256
Figure 3-5 Internal assemblies (3 of 7) ................................................................................................. 258
Figure 3-6 Internal assemblies (4 of 7) ................................................................................................. 260
Figure 3-7 Internal assemblies (5 of 7) ................................................................................................. 262
Figure 3-8 Internal assemblies (simplex models) .................................................................................... 264
Figure 3-9 Internal assemblies (duplex models) ..................................................................................... 266
Figure 3-10 PCAs ............................................................................................................................. 268
Figure 3-11 250-sheet paper feeder (optional Tray 3) ........................................................................... 270
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