Figure 3-19
Replace the tray 2 or tray 3 separation pad (3 of 6)
......................................................................
48
Figure 3-20
Replace the tray 2 or tray 3 separation pad (4 of 6)
......................................................................
48
Figure 3-21
Replace the tray 2 or tray 3 separation pad (5 of 6)
......................................................................
49
Figure 3-22
Replace the tray 2 or tray 3 separation pad (6 of 6)
......................................................................
49
Figure 3-23
Replacing the ADF pickup-roller assembly (1 of 9)
.......................................................................
50
Figure 3-24
Replacing the ADF pickup-roller assembly (2 of 9)
.......................................................................
50
Figure 3-25
Replacing the ADF pickup-roller assembly (3 of 9)
.......................................................................
51
Figure 3-26
Replacing the ADF pickup-roller assembly (4 of 9)
.......................................................................
51
Figure 3-27
Replacing the ADF pickup-roller assembly (5 of 9)
.......................................................................
52
Figure 3-28
Replacing the ADF pickup-roller assembly (6 of 9)
.......................................................................
52
Figure 3-29
Replacing the ADF pickup-roller assembly (7 of 9)
.......................................................................
53
Figure 3-30
Replacing the ADF pickup-roller assembly (8 of 9)
.......................................................................
53
Figure 3-31
Replacing the ADF pickup-roller assembly (9 of 9)
.......................................................................
54
Figure 3-32
Cleaning the scanner glass (1 of 2)
..............................................................................................
56
Figure 3-33
Cleaning the scanner glass (2 of 2)
..............................................................................................
57
Figure 3-34
Cleaning the scanner-cover backing
.............................................................................................
57
Figure 3-35
Cleaning the tray 2 pickup roller (1 of 6)
.......................................................................................
58
Figure 3-36
Cleaning the tray 2 pickup roller (2 of 6)
.......................................................................................
58
Figure 3-37
Cleaning the tray 2 pickup roller (3 of 6)
.......................................................................................
59
Figure 3-38
Cleaning the tray 2 pickup roller (4 of 6)
.......................................................................................
59
Figure 3-39
Cleaning the tray 2 pickup roller (5 of 6)
.......................................................................................
60
Figure 3-40
Cleaning the tray 2 pickup roller (6 of 6)
.......................................................................................
60
Figure 3-41
Cleaning the ADF pickup-roller assembly (1 of 7)
.........................................................................
62
Figure 3-42
Cleaning the ADF pickup-roller assembly (2 of 7)
.........................................................................
62
Figure 3-43
Cleaning the ADF pickup-roller assembly (3 of 7)
.........................................................................
63
Figure 3-44
Cleaning the ADF pickup-roller assembly (4 of 7)
.........................................................................
63
Figure 3-45
Cleaning the ADF pickup-roller assembly (5 of 7)
.........................................................................
64
Figure 3-46
Cleaning the ADF pickup-roller assembly (6 of 7)
.........................................................................
64
Figure 3-47
Cleaning the ADF pickup-roller assembly (7 of 7)
.........................................................................
65
Figure 3-48
Cleaning the print path
..................................................................................................................
65
Figure 4-1
HP LaserJet 3390/3392 all-in-one system block diagram
.............................................................
84
Figure 4-2
Internal components (base unit)
....................................................................................................
86
Figure 4-3
Engine control system
...................................................................................................................
88
Figure 4-4
Engine-control-system circuit diagram
..........................................................................................
89
Figure 4-5
Laser/scanner system
...................................................................................................................
90
Figure 4-6
Pickup/feed/delivery system
..........................................................................................................
92
Figure 4-7
Image-formation system
................................................................................................................
93
Figure 4-8
Primary charging
...........................................................................................................................
93
Figure 4-9
Developing
....................................................................................................................................
94
Figure 4-10
Transfer
.........................................................................................................................................
95
Figure 4-11
Separation
.....................................................................................................................................
95
Figure 4-12
Fusing
...........................................................................................................................................
96
Figure 4-13
Drum cleaning
...............................................................................................................................
96
Figure 4-14
Optical system
...............................................................................................................................
97
Figure 4-15
ADF paper path
.............................................................................................................................
98
Figure 5-1
Phillips and pozidrive screwdriver comparison
...........................................................................
109
Figure 5-2
Parts-removal tree
.......................................................................................................................
112
Figure 5-3
Remove the print cartridge (1 of 2)
.............................................................................................
113
Figure 5-4
Remove the print cartridge (2 of 2)
.............................................................................................
113
Figure 5-5
Remove the right cover (1 of 4)
...................................................................................................
114
xvi
ENWW