140 errors......................................................................................................................................................................132
155 errors......................................................................................................................................................................133
Procedure before starting the 9yy service checks ...........................................................................................134
900 errors ....................................................................................................................................................................136
912 errors.......................................................................................................................................................................141
94y errors ......................................................................................................................................................................141
950–958 errors ...........................................................................................................................................................141
959 errors.....................................................................................................................................................................144
96y errors.....................................................................................................................................................................145
97y errors .....................................................................................................................................................................146
98y errors .....................................................................................................................................................................147
99y errors.....................................................................................................................................................................148
Input option hardware errors........................................................................................................................149
321–344 errors............................................................................................................................................................149
Other symptoms...............................................................................................................................................153
Base printer symptoms.............................................................................................................................................153
Cooling fan service check........................................................................................................................................153
Dead machine service check..................................................................................................................................154
Controller board service check ..............................................................................................................................155
Control panel service check....................................................................................................................................156
USB print service check ...........................................................................................................................................156
Network service check .............................................................................................................................................157
Service menus............................................................................................161
Navigating through the Service menus...................................................................................................... 161
Diagnostics menu............................................................................................................................................. 161
Entering the Diagnostics menu ...............................................................................................................................161
Print Diagnostics Menu Instruction Sheet.............................................................................................................161
Print Quality Pages......................................................................................................................................................161
License List ..................................................................................................................................................................162
Defaults.........................................................................................................................................................................162
Edge to Edge...............................................................................................................................................................162
Continuous Tray 1 Simplex Print Test ....................................................................................................................162
Continuous Tray 1 Duplex Print Test......................................................................................................................163
Continuous Tray 2 Simplex Test .............................................................................................................................163
Continuous Tray 2 Duplex Print Test.....................................................................................................................163
Par 1 Strobe Adj...........................................................................................................................................................163
Print Event Log ............................................................................................................................................................163
Auto Dark Adj ..............................................................................................................................................................163
Mark History.................................................................................................................................................................163
History Mode ...............................................................................................................................................................164
Configuration menu.........................................................................................................................................164
Entering the Configuration menu...........................................................................................................................164
4514-2xx
Table of contents
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