To access the embedded Web server using a network connection
..................
52
Information tab
...................................................................................................
52
Settings tab
........................................................................................................
53
Networking tab
...................................................................................................
53
Other links in HP ToolboxFX
..............................................................................
53
4
Operational theory
Engine control system
.........................................................................................................................
56
Basic sequence of operation
..............................................................................................
56
Power-on sequence
............................................................................................................
57
Motors and fans
..................................................................................................................
57
Main motor failure detection
...............................................................................
58
Fan motor failure detection
................................................................................
58
Image formation system
......................................................................................................................
59
Image formation process
....................................................................................................
61
Latent image formation
......................................................................................
62
Laser/scanner system
........................................................................................
63
Developing stage
................................................................................................................
63
Print cartridge
.....................................................................................................
64
Transfer belt (ETB)
.............................................................................................
65
Transfer stage
.....................................................................................................................
66
Separation stage
.................................................................................................................
67
Fusing stage
.......................................................................................................................
67
Pickup and feed system
......................................................................................................................
69
Manual feed slot pickup mechanism
..................................................................................
71
Paper feed mechanism
.......................................................................................................
71
Skew correction by the registration shutter
........................................................................
71
Jam detection
......................................................................................................................
72
Solenoid, motor, and fan locations
.....................................................................................
73
Printed circuit assembly locations
.......................................................................................
73
250-sheet tray solenoid and printed circuit locations
.........................................................
74
Duplexing mechanism
........................................................................................................
75
Service-only tools (SERVICE ONLY)
..................................................................................................
80
General timing chart
............................................................................................................
80
Printer calibration
................................................................................................................
81
5
Removal and replacement
Overview
..............................................................................................................................................
84
Service approach
.................................................................................................................................
85
Pre-service procedures
.......................................................................................................
85
Removal and replacement procedures
...............................................................................................
86
Print cartridge replacement
.................................................................................................
86
ETB removal and replacement
...........................................................................................
89
Fuser removal and replacement
.........................................................................................
97
Formatter removal and replacement
................................................................................
105
DC controller removal and replacement
...........................................................................
108
Separation assembly removal and replacement
..............................................................
111
Paper-pickup roller removal and replacement
..................................................................
112
Control panel removal and replacement
...........................................................................
114
Memory-card assembly removal and replacement
..........................................................
119
ENWW
v