USB service check ...........................................................................................................................................137
Network service check....................................................................................................................................137
Input option hardware errors...............................................................................................................139
550‑sheet and 650‑sheet trays input option symptoms ................................................................................140
Tray (x) sensor service check ..........................................................................................................................140
Option and media size not recognized service check .....................................................................................142
Double feed and printout skewed service check............................................................................................144
Failed to load/feed from multipurpose feeder service check.........................................................................147
Failed to feed from option tray and leading edge damaged service check .................................................... 149
Tray 2 or tray 3 not detected service check....................................................................................................152
Tray 2 or tray 3 missing service check ............................................................................................................154
Tray 2 or tray 3 empty service check ..............................................................................................................157
Incompatible tray 3 service check ..................................................................................................................159
Service menus..........................................................................................163
Understanding the printer control panel..............................................................................................163
Using the printer control panel.......................................................................................................................163
Understanding the colors of the indicator light and Sleep button lights........................................................ 165
Diagnostics menu..................................................................................................................................166
Entering diagnostics mode .............................................................................................................................166
REGISTRATION ................................................................................................................................................167
Skew................................................................................................................................................................168
Quick Test ....................................................................................................................................................... 168
Alignment Menu ............................................................................................................................................. 169
MISC TESTS .....................................................................................................................................................170
PRINT TESTS ....................................................................................................................................................171
Feed Tests .......................................................................................................................................................171
Print quality test pages ...................................................................................................................................172
HARDWARE TESTS ..........................................................................................................................................172
DUPLEX TESTS .................................................................................................................................................173
INPUT TRAY TESTS .......................................................................................................................................... 176
BASE SENSOR TEST..........................................................................................................................................176
DEVICE TESTS ..................................................................................................................................................177
PRINTER SETUP ...............................................................................................................................................178
EP SETUP .........................................................................................................................................................181
TPS Setup: Right or Left ..................................................................................................................................181
TPS Setup: Reset Color Cal .............................................................................................................................. 182
TPS Setup: Cal Ref Adj.....................................................................................................................................182
REPORTS .........................................................................................................................................................182
EVENT LOG......................................................................................................................................................183
Exit Diagnostics ............................................................................................................................................... 184
Configuration menu..............................................................................................................................184
Entering configuration mode..........................................................................................................................184
Print Quality Pages..........................................................................................................................................185
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