User Guide

EN Index 279
D
dark copies or scans, troubleshooting 195
data communication operations 76, 79
date menu 36
DC bias 92
DC Controller PCA.
See ECU
DC power distribution 88
delay jams 96
delivery-delay jams 96
delivery roller, observing 206
delivery sensor, paper (PS401)
feeding operations 94
jam detection operations 96
delivery-stationary jams 96
demonstration report, printing 209
density
operations 89
troubleshooting 189
developer’s menu 230
developing roller 89
developing stage, image formation process 92
dimensions, product 19, 30
DIMM recovery
firmware 207
DIMMs
part numbers 243
slots 18
document feeder, ADF
capacity 18
documentation
ordering 242
doors
print cartridge 17, 133
DOS, PJL commands 234
dots per inch, maximum 18
dots, troubleshooting
printed pages 189, 193
scanned images 195
dpi, maximum 18
draft mode 78
DRAM, formatter 76
drive roller, observing 206
drivers, ordering 242
dropouts, troubleshooting 189, 192
drum
inspecting 187
operations 91, 92, 93
rotation functional check 202
troubleshooting 189
drum cleaning stage, image formation process 93
duty cycle 18
dynamic random access memory (DRAM), formatter
76
E
EconoMode 78
ECP (Extended Capabilities Port) interface 76
ECU
cables 166
electrical components 259
functions 85
jam detection operations 96
laser/scanner operations 87
loads 86
paper feeding operations 94
power system 88
removing 164
ECU (Engine Control Unit)
troubleshooting 175
edges, not printing 188, 194
electrical components, diagrams and part numbers
258
electrical specifications 20
electrophotographic processes
operations 91, 92
testing 201
electrostatic discharge (ESD), precautions for 109
element, heating
check 203
operations 93
Engine Control Unit (ECU)
troubleshooting 175
engine control unit.
See ECU
engine test
performing 200
Enhanced I/O 79
envelopes
loading 50
specifications for 47
environmental specifications 19, 30
error messages 38, 178
ESD (electrostatic discharge), precautions for 109
European Union regulatory information 28
exit rollers, fuser assembly 94
exit sensor, paper.
See delivery sensor, paper
(PS401)
Extended Capabilities Port (ECP) interface 76
extended warranty 24
F
facedown delivery assembly, removing 148
faceup roller, removing 149
fan assembly
removing 153
fasteners, types of 244