328 Index EN
Q
quality, troubleshooting 227, 230
Quick copy jobs menu 53, 68
R
RAM (random-access memory) 106
RAM disk
error messages 201, 202, 206
settings 68
random-access memory (RAM) 106
read/write timing, cartridge memory 94
read-only memory (ROM) 106
Ready light 49
rear cover, removing 145
rear output bin
capacity 16
removing 145
rear right side cover, removing 138
recovery, jam 67
recycling toner cartridges 44
refilled toner cartridges 44
registration assembly
operations 117, 123
removing 165
registration roller, cleaning 83
relays
RL102 91, 92
removing assemblies
pre-service checklist 135
procedures 135
repeating images, troubleshooting 242
repetitive defects, troubleshooting 239, 243
replacement intervals
components 87
toner cartridges 44
replacing assemblies
pre-service checklist 135
procedures 135
Resets menu 73
resetting printer 79
resolution
operations 112
settings 15, 63
Resolution Enhancement technology (REt) 63, 104
restoring default settings 73
REt (Resolution Enhancement technology) 63, 104
reversing motor (M701) 127, 257
right side covers, removing
front 144
rear 138
right side toner cartridge guide, removing 164
RIP ONCE 14
rollers
cleaning 83
operations 108
paper path 117
ROM (read-only memory) 106
rough paper, fuser modes 59
ruler, repetitive defect 243
S
safety information 36, 37, 135
scan buffer errors 215
scanner motor
operations 103
speed 112
scanning mirror 112
screwdrivers, required 136
screws
part numbers 272
removing and replacing 136
self-tapping, installing 135, 136
types used 137
SDRAM.
See
DIMMs
security page 225
Select key 50
self-tapping screws, installing 135, 136
self-test check 244
sensors
envelope (PS901) 127
envelope-size (PS903) 127
environment temperature (TH3) 129
error messages 214
fuser 265
jam 128
locations 263
paper path 117, 252
paper pickup and feed system 247
prefeed (PS102) 122
tray 1 paper (PS105) 120
separation pad
cleaning 83
life expectancy 87
separation rollers
cleaning 83
life expectancies 87
operations 124
removing 178
serial number 20, 77
service checklists 135
service manual, ordering 41
Service menu 75
service mode, using 74
settings
changing 52
driver or application 52
errors 216
isolating 107
maintenance interval 77
margins 78
page count 77
restoring defaults 73
temporary 51
units of measurement 60
sheet metal, cautions for 135
short-circuits 92
signals
BD (beam detect) 112, 212
CRGSNS (toner cartridge detection) 94
/DOPEN (door open) 91
FSRTH1/2 92
/MON (main motor drive) 103
/MRDY (main motor ready) 103
vertical synchronization (/TOP) 117
video 108
site requirements 21
sizes
font 61
paper 16, 25
skew correction operations 123
skewed images, troubleshooting 235
skewed pages, troubleshooting 239
skin, toner on 36
slots, DIMM 106
SLOW mode 58
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