Lexmark CS720 Service Manual page 479

troubleshooting, print quality
background or gray background 36
blank or white pages 37
blurred print or color misalignment 40
dark print 52
gapping or half color page 39
ghost images 46
horizontal colored lines or banding 41
image void process direction 51
image void scan direction 49
light print 57
mottled print and dots 43
random marks 57
solid color or black image 47
text or images cut off 43
toner easily rubs off 34
uneven print density 54
vertical colored lines or banding 48
vertical white lines 44
troubleshooting, service checks
900 service error messages 208
91y service error messages 209
938 service error messages 209
95y service error messages 209
96y service error messages 210
97y service error messages 211
980–984 service error messages 212
99y service error messages 212
network service check 229
usb service check 233
U
understanding the status of the power button and
indicator light 242
updating the printer firmware
using a flash drive 259
using a network computer 259
user attendance messages
31 user attendance error messages 149
32 user attendance error messages 149
33 user attendance error messages 150
42 user attendance error messages 151
43 user attendance error messages 151
80 user attendance error messages 152
82 user attendance error messages 152
83 user attendance error messages 152
84 user attendance error messages 153
85 user attendance error messages 154
88 user attendance error messages 155
non‑supply user attendance error messages 155
using the control panel 241
using the home screen 242
Index
479
5028