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covers
control-panel assembly,
removing 113
front-door assembly, removing
123
identification and location 111
left, removing 115
rear, removing 116
right-door assembly, removing
126
right-front, removing 113
right-rear, removing 119
top, removing 121
creases, troubleshooting 529
crooked pages
troubleshooting 529
customer support
online 639
D
dark image, troubleshooting 525
date
codes for firmware 353
manufacture 352
DC controller
PCA, removing 207
DC controller, operation 9
defeating
interlocks 286
delivery unit
delivery drive assembly (simplex
models), removing 189
demo page 284
determine the problem source
279
developing stage 31
diagnostics
component 314
engine 285
LED 284
networks 396
page, printing 347
See also tests; troubleshooting
diagrams 551
Display Settings menu, control
panel 269, 384
disposal, end-of-life 647
document conventions iii
doors. See covers
driver PCA
removing 218
drum cleaning stage 34
duplex
paper path 63
duplexing unit
duplex drive assembly (duplex
models), removing 187
jam causes 509
E
electrical specifications 642
electrostatic discharge (ESD) 84
end-of-life disposal 647
engine
diagnostics 285
engine speed
paper type 59
engine test button 288
engine-control system 8
envelopes
jams 519
environment, specifications 642
Environmental Product Stewardship
Program 645
error messages, control panel
411
ESD (electrostatic discharge) 84
European Union, waste disposal
647
event log
clear 494
information 353
print 493
view 493
event-log messages 492
F
faded print 525
fans
fuser, removing 201
power-supply fan and fan duct,
removing 198
FCC regulations 644
Finnish laser safety statement 653
firmware
date codes 353
version information 352
firmware, downloading new 547
flowcharts
troubleshooting 280
formatter
case, removing 130
PCA, removing 105
resets after replacing 534
formatter fan
removing 204
formatter lights 284
fuser
jam causes 508
jams 501
motor, removing 196
operation 59
part number 554
fuser drive assembly
removing 172
fusing stage 33
G
General Settings menu, control
panel 261, 367
H
heartbeat LED 285
high-voltage power supply
removing, first transfer 214
removing, imaging
(developing) 213
removing, second transfer 216
HP Customer Care 639
HP Jetdirect print server
configuration page 352
lights 284
humidity requirements 642
humidity values, printed 347
I
ICB PCA
removing 204
image quality
calibration process 41
print, troubleshooting 524
imaging drums
diagnostic test 287
installation
verify for optional accessories
350
interlocks
defeating 286
656 Index ENWW