Replace the pickup roller (tray 1)
........................................................................................................
51
Clean the pickup roller (tray 2)
............................................................................................................
55
Replace the pickup roller (tray 2)
........................................................................................................
62
5
Theory of operation
Introduction
..........................................................................................................................................
70
Internal components
............................................................................................................................
71
Timing
..................................................................................................................................................
73
Engine control system
.........................................................................................................................
74
Laser/scanner system
.........................................................................................................................
76
Pickup/feed/delivery system
................................................................................................................
77
Image-formation system
......................................................................................................................
79
6
Removal and replacement
Introduction
..........................................................................................................................................
84
Removal and replacement strategy
....................................................................................
84
Electrostatic discharge
........................................................................................................
84
Required tools
.....................................................................................................................
84
Before performing service
...................................................................................................................
85
Pre-service procedures
.......................................................................................................
85
Parts removal order
............................................................................................................
85
Covers
.................................................................................................................................................
86
Left-side cover
....................................................................................................................
86
Right-side cover
..................................................................................................................
86
Back cover
..........................................................................................................................
87
Duplexer tray (HP LaserJet P2015d, P2015dn, and P2015x printers only)
.......................
89
Top cover
............................................................................................................................
90
Control panel
.......................................................................................................................................
95
Formatter
.............................................................................................................................................
97
Laser/scanner
......................................................................................................................................
98
Memory-tag-reader assembly
..............................................................................................................
99
Duplex-drive PCA (HP LaserJet P2015d, P2015dn, and P2015x printers only)
..............................
101
Fuser
..................................................................................................................................................
103
Fan
....................................................................................................................................
103
Duplex-drive gears (HP LaserJet P2015d, P2015dn, and P2015x printers only)
............
104
Duplex solenoid (HP LaserJet P2015d, P2015dn, and P2015x printers only)
.................
106
Fuser
.................................................................................................................................
107
Interlock assembly
.............................................................................................................................
118
ECU
...................................................................................................................................................
119
Main motor
.........................................................................................................................................
126
Pickup and feed assemblies
..............................................................................................................
128
Transfer roller
....................................................................................................................
128
Registration assembly
......................................................................................................
129
Main gear assembly/tray 2 pickup solenoid
......................................................................................
130
Print-cartridge door
............................................................................................................................
134
7
Problem solving
Basic problem solving
........................................................................................................................
138
Status-light patterns
...........................................................................................................................
140
ENWW
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