Service manual

repetitive defects 117
repetitive image defect ruler
129
scattered toner 119
skewed pages 118, 122
smears 115
specks 113
water droplets 121
white stripes 120
wrinkled pages 121
R
RAM
formatter 47
Ready light
HP LJ 1010 series patterns
102
HP LJ 1020 patterns 106
locating 19
power-on functions 100
reams, breaking 123
rear panel, removing 77
recycling print cartridges 13
redistributing toner 111
reduction settings 112
refilled print cartridges 13
regulatory statements 14
removing
ECU 92
engine power assembly 87
front cover 82
fuser assembly 89
fuser cover 77
laser/scanner assembly 96
left side cover 77
order of 67
paper pickup assembly 91
parts 64
power assembly 87
print cartridge 65
print cartridge door 77
rear panel 77
right side cover 75
transfer roller assembly 84
repetitive defects, troubleshooting
117, 129
replacement intervals
extending print cartridge 48
recycling used print cartridges
13
supplies 28
replacing
field replaceable units (FRUs)
137
main input tray 40, 73
order of 67
output-bin extension 41, 74
parts 64
pickup roller 35, 68
separation pad 38, 71
replacing parts 35
reports, troubleshooting 101
reset, cold 100
residual paper jams 58
Resolution Enhancement
technology (REt) 8
resolution, specifications 7
revision level 7
right side cover, removing 75
rollers
cleaning pickup 34
image formation operations
54
paper feeding operations 56
part numbers 141, 145, 147
power supply 53
repetitive image defect ruler
129
replacing pickup 35, 68
transfer, cleaning near 30
transfer, removing 84
rotation test 126
ruler, repetitive defect 129
S
scanning exposure stage, image
formation process 55
scatter, toner 119
schedules, HP Technical Training
134
screwdrivers, required 64
screws
self-tapping 64
types of 137
sensors
jam detection operations 58
locating 58, 131
paper feed system 56
separation pad
life expectancies 28
locating on LJ 1010 series 5
locating on LJ 1020 printer 6
operations 56
part number 141, 145, 147
replacing 38, 71
separation stage, image formation
process 55
serial number 7
service manual part numbers
142, 145, 147
settings, isolation of 49
signals, VIDEO 60
size
margins, minimum 112
printer 9, 18
sizes
media 21
skew, troubleshooting 118, 122
smears
troubleshooting 115
smears, toner 115
software
installation, troubleshooting
99
ordering 134
solenoid (SL001)
locating 58, 131
operations 56, 58
space requirements 9, 18
specifications
acoustic emissions 11
card stock 24
electrical 10
envelopes 23
labels 23
letterhead 22
media 21
physical 9
transparencies 22
specks, toner 113, 119
speed
data transfer 48
printing 7, 9
processor 47
spots
troubleshooting 115
stages, image formation 55, 124
static eliminator, operations 55
static precautions 64
stationary jams 58
154 Index ENWW