HP LASERJET ENTERPRISE M775dn - Page 31

Figure 1-74 3x500-sheet paper-deck pickup-and-feed operation ............................................................... 98
Figure 1-75 3x500-sheet paper-deck cassette lift-up operation ................................................................ 101
Figure 1-76 3x500-sheet paper deck jam detection .............................................................................. 102
Figure 1-77 HCI paper path ............................................................................................................... 104
Figure 1-78 HCI signal flow ............................................................................................................... 104
Figure 1-79 HCI motors ..................................................................................................................... 106
Figure 1-80 HCI pickup-and-feed components ...................................................................................... 107
Figure 1-81 HCI lift-up operation mechanism ........................................................................................ 109
Figure 1-82 HCI jam detection sensors ................................................................................................ 111
Figure 2-1 Touchscreen blank, white, or dim (no image) ........................................................................ 131
Figure 2-2 Touchscreen is slow to respond or requires multiple presses to respond .................................... 132
Figure 2-3 Touchscreen has an unresponsive zone ................................................................................ 133
Figure 2-4 No control-panel sound ...................................................................................................... 134
Figure 2-5 Home button is unresponsive .............................................................................................. 135
Figure 2-6 Hardware integration pocket (HIP) is not functioning (control panel functional) .......................... 136
Figure 2-7 Defeating interlocks (1 of 2) ................................................................................................ 142
Figure 2-8 Defeating interlocks (2 of 2) ................................................................................................ 143
Figure 2-9 Engine test button .............................................................................................................. 144
Figure 2-10 Photo sensors (paper path) ............................................................................................... 157
Figure 2-11 1x500-sheet paper-feeder sensors and switches .................................................................. 158
Figure 2-12 1x500-sheet paper-deck sensors and switches .................................................................... 159
Figure 2-13 3x500-sheet paper-deck sensors and switches .................................................................... 160
Figure 2-14 High capacity input (HCI) sensors and switches ................................................................... 161
Figure 2-15 DC controller PCA ........................................................................................................... 162
Figure 2-16 HCI Controller PCA ......................................................................................................... 164
Figure 2-17 Paper Deck Controller PCA ............................................................................................... 165
Figure 2-18 Staple Stacker Controller PCA ........................................................................................... 166
Figure 2-19 Component locations (1 of 6) ............................................................................................ 168
Figure 2-20 Component locations (2 of 6) ............................................................................................ 169
Figure 2-21
Component locations (3 of 6) ............................................................................................ 169
Figure 2-22 Component locations (4 of 6) ............................................................................................ 170
Figure 2-23 Component locations (5 of 6) ............................................................................................ 171
Figure 2-24 Component locations (6 of 6) ............................................................................................ 172
Figure 2-25 1 x 500-sheet paper feeder (1 of 2) .................................................................................. 173
Figure 2-26 1 x 500-sheet paper feeder (2 of 2) .................................................................................. 174
Figure 2-27 1 x 500-sheet paper deck (1 of 2) ..................................................................................... 175
Figure 2-28 1 x 500-sheet paper deck (2 of 2) ..................................................................................... 176
Figure 2-29 3,500-sheet paper deck (1 of 2) ....................................................................................... 177
Figure 2-30 3,500-sheet paper deck (2 of 2) ....................................................................................... 178
Figure 2-31 Stapler/stacker (1 of 2) .................................................................................................... 179
Figure 2-32 Stapler/stacker (2 of 2) .................................................................................................... 180
ENWW xxix