Lexmark MX721 User Manual page 315

Index
cannot open Embedded Web
Server 251
print quality problems 218
printer is not responding 247
troubleshooting, copy
partial copies of documents or
photos 268
poor copy quality 269
scanner does not respond 272
scanner unit does not close 271
troubleshooting, e‑mail
cannot send e‑mails 260
troubleshooting, fax
caller ID is not shown 261
can send but not receive faxes
using analog fax 263
cannot send faxes using analog
fax 263
cannot send or receive faxes
using analog fax 261
cannot send or receive faxes
using etherFAX 264
cannot send the fax cover page
from the computer 265
cannot set up etherFAX 263
missing information on the fax
cover page 265
poor print quality 264
troubleshooting, print
collated printing does not
work 256
confidential and other held
documents do not print 249
envelope seals when
printing 256
incorrect margins 226
jammed pages are not
reprinted 260
job prints from the wrong
tray 248
job prints on the wrong
paper 248
paper frequently jams 259
print jobs do not print 244
slow printing 245
tray linking does not work 258
troubleshooting, print quality
blank or white pages 219
crooked print 230
dark print 221
fine lines are not printed
correctly 222
folded or wrinkled paper 223
gray background on prints 224
horizontal light bands 236
light print 227
mottled print and dots 229
paper curl 257
repeating defects 244
skewed print 230
solid black pages 230
text or images cut off 233
toner easily rubs off 235
vertical dark bands 238
vertical dark lines 240
vertical dark lines or
streaks 241
vertical dark streaks with print
missing 242
vertical light bands 236
vertical white lines 237
troubleshooting, printer options
cannot detect internal
option 253
troubleshooting, scan
cannot scan to a computer 266
cannot scan to a network
folder 267
jagged image when scanning
from the ADF 270
jagged text when scanning from
the ADF 270
partial copies of documents or
photos 268
poor copy quality 269
scan job was not successful 271
scanner does not respond 272
scanner unit does not close 271
vertical dark streaks on output
when scanning from the
ADF 269
two‑sided copying 49
U
unable to read flash drive
troubleshooting, print 250
Unformatted flash detected 254
Universal paper size
setting 28
unlinking trays 37
updating firmware 292
USB cable 15
USB port 15
enabling 250
using Customer Support 22
using Display Customization 20
using genuine Lexmark parts and
supplies 173
using QR Code Generator 22
using the ADF
copying 48
using the automatic document
feeder (ADF) 48, 51, 60, 72
using the control panel 16
using the home screen 18
using the scanner
glass 48, 51, 60, 72
copying 48
V
verify print jobs 45
vertical dark lines 240
vertical dark lines on prints 241
vertical dark streaks on scanned
document 269
vertical streaks on prints 241
viewing a fax log 70
viewing reports 160
virtual keyboard
using 27
Voice Guidance
activating 26
speech rate 26
Voice Guidance speech rate
adjusting 26
volatile memory 158
erasing 157
W
white lines 237
white pages 219
wireless network
connecting the printer to 161
Wi‑Fi Protected Setup 162
wireless networking 161
Wi‑Fi Direct
configuring 163
enabling 163
printing from a mobile
device 43
Wi‑Fi network
deactivating 164
Wi‑Fi Protected Setup
wireless network 162
wrinkled paper 223
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