subvoltage
low-voltage power supply
circuit 12
supplies
counterfeit 408
error messages 313
memory errors 237
non-HP 407
recycling 421
replace message 313
support
online 416
switches
DC controller 6
paper feeder 57, 59
pickup, feed, and delivery
0
T
T.30 Trace report 398
Taiwan EMI statement 432
TCP/IP information 145
technical support
online 416
temperature
control for fuser 17
thresholds for fuser
components 17, 18
tests
color band 147
component tests list and
descriptions 118
disable cartridge check 93
engine 94
manual sensor 97
networks 222
paper path 95
paper-path sensors 95
print/stop 117
tray/bin manual sensor 109
text, troubleshooting 368
thermistors
fuser 16, 17
open detection 19
thermopiles
fuser 17
thermoswitches
fuser 16, 17
thresholds
power-supply frequency, drive
circuit 19
temperature, fuser
components 17, 18
timing chart 132
tips iii
toner
image formation, use during
23
loose, troubleshooting 367
patterns for calibration 36
smeared, troubleshooting 368
toner cartridges
components 28
diagnostic test 93
error conditions 30
memory chips 410
non-HP 407
operations 29
recycling 421
warranty 406
transfer processes 26
tray
lift operation 43
pickup operations 42
presence detection 43
Tray 1
jams 340
Tray 2
jams 342
Tray 3
jams 347, 348
tray selection - use requested tray
212
trays 46
multipurpose, pickup
operation 46
See also cassette
triac-drive circuit
deactivation 18
troubleshooting 69, 140
blank pages 375
checklist 70
clean the paper path 142
color 140
configuration page 86
configuration pages for 143
control panel 118
control panel messages,
numerical 237
control-panel checks 83
demo page 86
direct-connect problems 376
EP parameters 140
event log 86
event log messages, numerical
list 329
flowchart 81
jams 359
lights, using 86
lines, printed pages 365
network problems 376
pages not printing 375
pages printing slowly 375
paper feed problems 358
PBX systems 393
power 82
print quality issues 364
process 81
repeating defects 147
reports and tools 86
scanner calibration 85
scanning subsystem 85
skewed pages 368
slow fax reception 391
slo
w
fax transmission 393
status page 86
text 368
toner smear 368
USB cables 375
wrinkles 368
See also diagnostics
Troubleshooting menu, control
panel 228
U
upgrades, downloading product
399
USB Firmware Upgrade menu,
control panel 236
USB port
troubleshooting 375
Use Requested Tray 212
V
version, hardware firmware 145
vertical lines, troubleshooting 365
VoIP 390
444 Index ENWW
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