Lexmark MX321 - Page 392

MPF pick roller and separator pad 253
MPF solenoid 219
MPF with front access cover 256
nameplate 239
numeric keypad cover (MX421, XM1242) 242
pick roller assembly 268
pick roller clutch 221
power supply 260
printhead 279
rear door and cover 273
redrive assembly 274
reverse solenoid 216
right cover 223
scanner assembly 283
scanner front cover 249
scanner rear covers 272
sensor (bin full) 273
sensor (cartridge barrel shutter) 236
sensor (front door) 251
sensor (MPF paper present) 257
sensor (toner density) 265
sensor (trailing edge) 267
sensor (tray present) 227
speaker (MX321) 242
speaker (MX421, XM1242) 243
toner cartridge smart chip contact 233
top access cover 240
top cover 276
transfer roller 250
removing paper jam
in door A 73
reports
device settings 172
installed licenses 172
restoring
configuration file 190
license file 190
ribbon cables 193
roller locations 307
S
safe mode 29
scanner
cleaning 317
scanner diagnostics
controller calibration 179
feed test 177
motor tests 178
scanner calibration reset 179
sensor tests 177
scanner theory
flatbed 382
scheduled maintenance 315
selecting a location for the printer 364
sensor locations 309
sensors, paper path 379
service engineer (SE) menu
accessing 184
general SE 184
network SE 184
solid black pages 47
streaked vertical lines appear on prints 53
supported paper sizes 24
supported paper types 26
supported paper weights 27
T
theory
duplex paper path 377
main drive 380
paper path sensors 379
simplex paper path 377
tray drive 381
theory of operation
POR sequence 369
printer control 369
theory, ADF paper path 383
theory, ADF paper path sensors 384
theory, flatbed scanner 382
toner rubs o 68
toner specks appear on prints 69
tools, required 27
transfer 374
tray
drive 381
troubleshooting
fax symptoms 158
initial check 29
troubleshooting, print quality
blank pages 34
clipped pages or images 64
compressed images appear on prints 66
fax reception service check 162
fax transmission service check 160
fine lines are not printed correctly 63
folded or wrinkled paper 46
gray background on prints 31
horizontal light bands 54
incorrect margins on prints 67
paper curl 45
print is too dark 40
print is too light 42
repeating defects 50
skewed print 51
7017-2xx, -4xx, -6xx
Index
392