Service manual
Index
A
ac bias 55
ac power distribution 53
accessories, ordering 135
acoustic emissions 11
alignment, troubleshooting 118,
122
Attention light
HP LJ 1010 series patterns
102
HP LJ 1020 patterns 106
locating 19
power-on functions 100
B
back panel, removing 77
background, gray 114
beam detect (BD) signal 55
bidirectional communications 47,
49
bin, output
capacity 7
extension, replacing 41, 74
jams, clearing 42, 108
locating on LJ 1010 series 4
locating on LJ 1020 printer 6
black dots, troubleshooting 113,
119
blank pages, troubleshooting 111
block diagrams
image formation 54
product functions 50
breaking paper reams 123
buffer memory 48
buttons 19
buttons, control panel 19
C
Canadian DOC regulations 14
Cancel Job button 19
capacity, trays and bins 7
card stock specifications 24
Care Pack, HP 12
cartridge area, cleaning 32
cartridge door
locating on LJ 1010 series 4
locating on LJ 1020 printer 6
removing 77
cartridges
checking 111, 127
drum rotation check 126
extending life of 48
life expectancies 28
operations 55, 56
part numbers 135
recycling 13
redistributing toner 111
refilled 13
removing 65
CD-ROM part numbers 141,
143, 146
central processing unit (CPU),
formatter 47
characters, misprinted 113, 118
charging roller
operations 55
power supply 53
checklists
preservice 64
print cartridge inspection 111
troubleshooting 98
checks
continuous self-test 100
drum rotation 126
half-self-test 124
high-voltage power supply
127
print cartridge 111
circuit capacity specifications 10
circuit diagram 130
circuitry, power system 53
classes, HP Technical Training
134
cleaning
high-voltage connection points
128
high-voltage contacts 127
outside of printer 30
pickup roller 34
print cartridge area 32
print path 31
cleaning page 101
cleaning stage, image formation
process 56
clipped pages, troubleshooting
112
cloth, toner 136
cold reset 100
Coldfire processor 47
communication operations 47, 49
complex pages, printing 48
conditioning stage, image formation
process 55
configuration report 101
connection points
high-voltage power supply
128
print cartridge 127
consumables
life expectancies 28
ordering 134
continuous self-test 100
control panel
buttons 19
lights 19, 100
lights, HP LJ 1010 series
patterns 102
lights, HP LJ 1020 patterns
106
operations 47
ENWW Index 149