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develop 373
expose 372
flowchart 370
fuse 375
transfer 374
print engine layout 369
print is too dark 40
print is too light 42
print quality
initial check 31
print quality troubleshooting
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
solid black pages 47
streaked vertical lines appear on prints 53
toner rubs off 68
toner specks appear on prints 69
vertical dark bands 56
vertical dark streaks with print missing 58
vertical light bands 55
white streaks and voided areas 60
printer
minimum clearances 364
selecting a location 364
printer configurations 303
printer diagnostics
input tray quick print 174
output bin quick feed 174
printer diagnostics & adjustments
motor tests 176
sensor tests 176
universal override 177
printer diagnostics and adjustments
add-on cards tests 177
memory tests 177
registration adjust 176
printer model
configurations 23
printer ports 304
printer sections 376
printer setup
enable edge‑to‑edge (copy) 175
enable edge‑to‑edge (printing) 174
engine setting [x] 175
EP setup 175
model name 175
permanent page count 174
printed page count (mono) 174
process ID 175
serial number 175
printhead lenses
cleaning 320
R
removal
control panel assembly (MX321) 245
controller board 230
cooling fan 227
numeric keypad cover (MX321) 241
redrive gear assembly 275
separator roller assembly 300
removal procedures
tips 209
removals
ADF access door 288
ADF assembly 285
ADF cable 296
ADF flat cable 293
ADF hinge 286
ADF restraint pad 282
ADF roller 289
ADF tray 283
cartridge gearbox 220
control panel assembly (MX421, XM1242) 246
control panel bezel (MX321) 241
control panel board (MX321) 247
control panel cover (MX321) 247
control panel cover (MX421, XM1242) 248
duplex assembly 262
duplex sensor 264
flatbed scanner 291
front input guide 258
front USB port 258
fuser 275
fuser actuator 215
input sensor 264
interconnect cable 225
jam access 250
left cover 209
main drive gearbox 211
MPF gearbox 212
Index
391
7017-2xx, -4xx, -6xx
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