Index
Symbols/Numerics
1,500-sheet high-capacity input tray
clear jams 447
1x500-sheet paper deck 182
1x500-sheet paper feeder 181
1X500-sheet paper feeder rollers
cleaning 496
2,500-sheet high-capacity feeder
(HCI) 183
2,500-sheet high-capacity feeder
(HCI) rollers
cleaning 497
3-bin stapling mailbox accessory
(M680) 174, 184
A
AC to DC conversion 16
accessories controller PCA 173
accessories installed, information
202
acoustic specifications 530
ADF
paper path 79
sensors 77
Administration menu, control
panel 205
automatic delivery
stapling mailbox 99
B
back of page dirty, troubleshooting
475
Backup/Restore menu, control
panel 284
base product 178
basic product operation 2
beam-detect (BD) failure 24
bias generation
high-voltage power supply 14
black page, troubleshooting 475
black-only printing mode
primary transfer roller state 38
blank pages
troubleshooting 498
blank pages, troubleshooting 474
Bubble or cloud print,
troubleshooting 490
bubbles or blisters,
troubleshooting 485
C
cables
USB, troubleshooting 498
calibrate
colors 204
Calibrate/Cleaning menu (M651),
control panel 288
Calibrate/Cleaning menu (M680),
control panel 285
calibration
information, printed 194
process 40
cartridge
developing unit engagement and
disengagement 35
life detection 35
memory tag 35
presence detection 35
toner level detection 35
cassette 51
lift operation 50, 73
paper-presence detection 50
pickup operations 48
presence detection 49, 71
See also trays
cautions iii
certificate of volatility 531
characters, troubleshooting 480
checklist
problems 102
circuit diagrams
fuser temperature-control 20
general 186
high-voltage power supply 14
low-voltage power supply 16
clean the paper path
cleaning page printing 196
cleaning
paper path 491
product 491
rollers 494, 496, 497
scanner glass (M680) 492
cleaning page 285, 288
clock 5
clutches
DC controller 10
cold reset 503
color
diagnostic test 202
primary transfer roller state 38
troubleshooting 194
color is misregistered,
troubleshooting 479
color-misregistration control 41
colors
calibrate 204
component test
special mode test 155
components
DC controller 9
diagnostic tests 155
diagrams of 160
duplexing unit 59
engine-control system 8
fuser 19
image formation, use during
26
EN
WW Index 535
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