troubleshooting, print quality
vertical dark lines or
streaks 148
troubleshooting, printer options
cannot detect internal
option 169
U
unable to read flash drive
troubleshooting, print 156
Universal paper size
setting 28
unlinking trays 30
updating
firmware
32
USB port 20
enabling 157
using Customer Support 23
using Display Customization 22
using genuine Lexmark parts and
supplies 108
using the control panel 11
using the home screen 20
V
verify print jobs 55
vertical dark bands on prints 147
vertical dark lines on prints 148
vertical dark streaks 149
vertical light bands 145
vertical streaks on prints 148
vertical white lines 146
viewing reports 108
Voice Guidance
activating 25
deactivating 25
speech rate 27
Voice Guidance speech rate
adjusting 27
volatile memory 51
erasing 50
W
white pages 130
wireless network
connecting the printer to 46
Wi‑Fi Protected Setup 47
wireless networking 46
wireless print server
replacing 114
wireless support 46
Wi‑Fi Direct
configuring 47
enabling 48
printing from a mobile
device 53
Wi‑Fi network
deactivating 49
Wi‑Fi Protected Setup
wireless network 47
wrinkled paper 133
Index 194
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