U
unable to read flash drive
troubleshooting, print 210
Unformatted flash detected 212
Universal paper size
setting 28
unlinking trays 37
updating firmware
flash file 281
USB cable 15
USB port 15
enabling 210
using
genuine Lexmark parts 156
genuine Lexmark supplies 156
using Customer Support 22
using Display Customization 20
using QR Code Generator 22
using the ADF
copying 51
using the control panel 16
using the home screen 18
using the scanner glass
copying 51
V
verify print jobs 49
printing from a Macintosh
computer 49
printing from Windows 49
vertical dark lines on prints 239
vertical dark streaks on output
when scanning from the
ADF 252
vertical streaks on prints 239
virtual keyboard
using 27
Voice Guidance
activating 26
speech rate 27
Voice Guidance speech rate
adjusting 27
volatile memory 149
erasing 148
W
white lines 236
white pages 216
Wireless menu 126
wireless network
connecting the printer to 150
Wi‑Fi Protected Setup 151
wireless networking 150
Wi‑Fi network
deactivating 152
Wi‑Fi Protected Setup
wireless network 151
wrinkled paper 220
Index 303
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