Lexmark MS312, Service Manual

Page: 334 / 343

service engineer (SE) menu 180
accessing 180
solid black pages 47
specifications
acoustics 310
electrical 309
environment 311
operating clearances 310
storing
paper 31
streaked vertical lines appear on prints 60
supported paper sizes 33
supported paper types and weights 34
symptoms
printer 152
T
theory of operation
ACM 318
duplex printing 317
electrophotographic process 321
input tray 315
main drive gearbox 318
MPF 315
other key components 320
POR sequence 315
printer control 315
sensors 319
simplex printing 316
tips
card stock 31
on using envelopes 31
on using labels 32
transparencies 32
tips on using envelopes 31
toner rubs off 74
toner specks appear on prints 75
Too many trays. Remove some. [58] 112
tools, required 35
transparencies
tips 32
troubleshooting
initial check 37
troubleshooting, print quality
blank pages 41
clipped pages or images 70
compressed images appear on prints 72
fine lines are not printed correctly 69
folded or wrinkled paper 56
gray background on prints 39
horizontal light bands 61
incorrect margins on prints 73
paper curl 54
print is too dark 50
print is too light 52
repeating defects 57
skewed print 58
solid black pages 47
streaked vertical lines appear on prints 60
toner rubs off 74
toner specks appear on prints 75
vertical dark bands 63
vertical dark streaks with print missing 64
vertical light bands 62
white streaks and voided areas 67
troubleshooting, service checks
network service check 157
U
unacceptable paper 28
updating the printer firmware
using a flash drive 189
using a network computer 189
V
vertical dark bands 63
vertical dark streaks with print missing 64
vertical mount contact connector 197
W
white streaks and voided areas 67
Z
zero insertion force (ZIF) connectors 190
4514-330
Index
334