paper jam behind door E 73
paper jam clearing
standard bin 74
paper jam in door A 75
paper jam in the multipurpose feeder 73
paper jam in the standard bin 74
paper jam in trays 72
paper jam, clearing
automatic document feeder 73
multipurpose feeder 73
trays 72
paper jams
28y 158
avoiding 70
paper jams, clearing
in the duplex unit 75
in the fuser 75
paper path
aligner section 532
duplex section 535
fuser section 534
isolation unit section 531
MPF section 530
tray section 529
paper sizes
supported 29
paper types
supported 31
paper weights
supported 31
parts catalog legend 486
POR sequence 35
power button light
printer status 278
power‑on reset sequence 35
print driver
hardware options, adding 526
print quality
cleaning the scanner glass 482
initial check 36
print quality troubleshooting
adf duplex service check 247
adf feed errors service check 245
ADF open service check 161
ADF paper jam service check 158
ADF top cover open service check 162
ADF tray empty service check 163
background or gray background 38
black or blank page copy service check 241
blank or white pages 39
blurred print or color misalignment 42
dark print 54
fax reception service check 249
fax transmission service check 251
flatbed home position service check 242
flatbed legal‑size scan service check 244
flatbed motor service check 242
gapping or half color page 41
ghost images 48
horizontal colored lines or banding 43
image void process direction 53
image void scan direction 51
light print 59
modem/fax card service check 248
mottled print and dots 45
random marks 59
scanner communication failure service check 239
scanner disabled error service check 238
solid color or black image 49
text or images cut o 45
toner easily rubs o 36
uneven print density 56
vertical colored lines or banding 50
vertical white lines 46
printer
basic model 457
fully configured 457
minimum clearances 522
moving 522
selecting a location 522
printer configurations 457
printer diagnostics
input tray quick print 282
printer diagnostics & adjustments
motor tests 284
sensor tests 284
printer diagnostics and adjustments
add-on cards tests 285
color alignment adjust 285
fuser temperature 286
memory tests 284
printhead diagnostics 285
registration adjust 285
supply reset 285
USB high-speed tests 285
weather station 286
printer setup
enable edge‑to‑edge (copy) 283
enable edge‑to‑edge (printing) 283
engine setting [x] 283
EP setup 284
model name 283
permanent page count 282
printed page count (color) 282
7528
Index
559