182 EN
consumables
life expectancies 48
ordering 144
contacts, DC Controller 119
continue from memory errors 40
continuous self-test 44
control panel
assembly, locating 147
button 40
errors 120
removing 78
service errors, displaying 123
troubleshooting 116
wiring harness 78
control panel lights. See indicator lights
conversions, voltage 29
Country of Origin 15
course materials, ordering 22
coverage, toner 49
covers
back, removing 73
cleaning 51
locating 148
main, removing 77
Memory Expansion, locating 21
Memory Expansion, removing 72
part numbers 149
CPU, formatter 58
CSSO-A (Commercial Service and Support Organization-
Americas) 144
CSSO-E (Commercial Service and Support Organization-
Europe) 144
curled pages, troubleshooting 130, 137
Customer Care, HP 23
Customer Information Centers
Asia-Pacific countries/regions 25
customer support
HP Customer Care 23
customer support. See support
cut-off pages 60, 129
cycling power 120
D
dark backgrounds, troubleshooting 131
data
clearing 45
DC Controller-to-Formatter 66
Enhanced I/O 59
errors, troubleshooting 121
Page Protect 60
Data light 38, 121
DC bias 62
DC Controller
components 119
connectors 113
functions 55
grounding screw 111
loads 55
locating 147
paper feed operations 63
paper path components 118
part numbers 157
parts diagrams 156
power system 56
removing 111
signals 118
timing operations 66
DC power
distribution 57
shutoff switch 56
default settings, returning to 45
defects
image 126, 127
repetitive 128
ruler 139
delay jams 65
delivery assembly
cleaning 51
locating 147
part numbers 165
parts diagram 164
removing 80
delivery roller
locating 63
testing 138
density
control 57
EconoMode 59
toner coverage 49
troubleshooting 131
depth, printer 33
developing roller 57
developing stage 62
diagnostics. See tests
dimensions, printer 33
direct ordering of accessories and supplies 23
dirt, troubleshooting 131
display panel. See control panel
displaying service errors 123
distorted images, troubleshooting 132
distributing toner 35
documentation, ordering 22
door open/no cartridge errors
sensor (PS204) 64
troubleshooting 120, 121
doors
EP, removing 75
locating 148
memory, removing 76
part numbers 149
dots, troubleshooting 127, 129, 131
draft mode 49
DRAM. See memory
drive roller, testing 138
dropouts, troubleshooting 129
drum
operations 63
rotation functional check 134
troubleshooting 126
drum cleaning stage 62
drum conditioning stage 62
duty cycle 14
E
EconoMode 49
edges, detecting 64
electrical specifications 18
electrophotographics. See image formation system
electrostatic discharge (ESD) 70
eliminator teeth, cleaning 51
emissions
acoustic 18
ozone 179
engine errors 124
engine tests 44, 133
Service.book Page 182 Thursday, September 14, 2000 11:15 AM