service checks troubleshooting
110.xx printhead service check 82
121.xx fuser service check 83
133.xx toner meter sensors (Y, C, M, K) on TMC card
service check 87
147.xx paper pick motor drive assembly service
check 91
171.xx fan error service check 93
1xx service error messages 76
200.xx input (S2) sensor service check 42
202.xx fuser exit sensor service check 48
230.xx duplex/manual feed sensor (S1) service
check 54
84x.xx service error messages 94
900.xx system software error service check 103
91x.xx (910.xx‑919,xx) engine software service
check 107
950.xx NVRAM failure service check 108
9xx service error messages 99
dead printer service check 115
front door sensor or switches service check 117
narrow media sensor service check 113
network service check 109
operator panel (display blank) service check 126
operator panel (display is dim and unchanging)
service check 121
operator panel (displays all diamonds, no beeps, or
five beeps) service check 124
operator panel (one or more operator panel buttons
fail) service check 128
operator panel USB cable service check 129
toner meter cycle (TMC) card service check 115
tray (x) sensor service check 132
trays 2 and 3 (optional) service check 130
usb service check 130
service engineer (SE) menu
accessing 198
service manual conventions 17
skew 164
speaker removal 294
Specifications
electrical 351
specifications
acoustics 353
environment 354
operating clearances for CX310 models 352
operating clearances for CX410 and CX510
models 353
power 351
system fan removal 294
T
test
duplex option top margin 172
tests
base printer sensors 176
feed tests 175
flash memory 177
motor detection 169
print 170
print quality test pages 175
sensor test 175
toner cartridge contacts removal 294
toner density sensor (TDS) (left or right sensor)
removal 296, 302
toner meter cycle (TMC) card removal 298
toner supply door removal 303
tools, required 23
top cover adf sheet feed removal 229
top cover assembly removal 225
TPS Setup
Cal Ref Adj 176
Reset Color Cal 176
right or left TPS 176
transfer module barcode 178
transfer module removal 300
transport components 360
Tray [x] sensing 191
troubleshooting
550‑sheet and 650‑sheet trays input option
symptoms 130
base printer symptoms 112
initial check 25
scan/fax/copy symptoms 112
troubleshooting, print quality
840.xx service check 95
843.xx service check 96
adf cover open service check 138
adf duplex service check 142
adf feed errors service check 141
adf paper jam service check 139
adf streak service check 139
black or blank page copy service check 136
ccd service check 137
fax reception service check 144
fax transmission service check 146
flatbed home position service check 137
flatbed motor service check 137
modem/fax card service check 143
print quality toner rubs off service check 29
troubleshooting, service checks
110.xx printhead service check 82
7527
Index
379