Service manual

service manual 142, 145, 147
transfer roller 141, 145, 147
trays 141, 144, 147
voltage 137
partial characters, troubleshooting
113, 118
parts
ordering 134
removing and replacing 64
user-replaceable 35, 68
parts removal order 67
path
feeding operations 56, 57
print, cleaning 31
PCL (Printer Command Language)
49
photosensitive drum
inspecting 111
operations 55, 56
rotation functional checks 126
photosensors
jam detection operations 58
locating 58, 131
paper feed system 56
physical specifications 9
pickup delay jams 58
pickup roller
cleaning 34
operations 56
part number 141, 145, 147
replacing 35, 68
pickup solenoid (SL001)
locating 58, 131
operations 56, 58
pickup stationary jam 58
PJL (Printer Job Language) 49
pliers, required 64
ports
communication operations 47
locating on LJ 1010 series 5
locating on LJ 1020 printer 6
LPT, troubleshooting 99
power
control operations 50
specifications 10
power receptacle, locating
HP LaserJet 1010 series printers
5
HP LaserJet 1020 printer 6
power supplies
disconnecting 64
engine power assembly 53
part numbers 141, 143, 147
removing 87
testing high-voltage 127
power switch, locating
HP LaserJet 1010 series printers
5
HP LaserJet 1020 printer 6
power-on functions, control panel
100
ppm (pages per minute) 7, 9
preservice checklist 64
pressure roller, operations 56
primary charging roller
operations 55
power supply 53
print cartridge area, cleaning 32
print cartridge door
locating on LJ 1010 series 4
locating on LJ 1020 printer 6
removing 77
print 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
print density
troubleshooting 113
voltage operations 53
print path
cleaning 31
feeding operations 56, 57
PRINT period 60
print quality, troubleshooting
about 111
blank pages 111
characters, misprinted 118
curled paper 119, 122
dropouts 113
faded areas 120
gray background 114
lines 114
loose toner 116
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
print servers, ordering 135, 136
Printer Command Language (PCL)
49
printer drivers, ordering 134
printer exchange 138
Printer Job Language (PJL) 49
printer separation pad
life expectancy 28
locating on LJ 1010 series 5
locating on LJ 1020 printer 6
operations 56
part number 141, 145, 147
replacing 38, 71
printing
loading media 25
troubleshooting 99
printing, troubleshooting 122
priority feed slot
capacity 7
feeding operations 56
loading 25
locating on LJ 1010 series 4
locating on LJ 1020 6
priority input slot
feeding problems,
troubleshooting 122
processor, formatter 47
production code 7
Q
quality, troubleshooting
about 111
blank pages 111
characters, misprinted 118
curled paper 119, 122
dropouts 113
faded areas 120
gray background 114
lines 114
loose toner 116
ENWW Index 153