95y errors .....................................................................................................................................................................160
ADF/Scanner hardware errors..................................................................................................................... 162
84y errors .....................................................................................................................................................................162
Other symptoms...............................................................................................................................................164
Fax symptoms .............................................................................................................................................................164
Base printer symptoms............................................................................................................................................. 174
Service menus........................................................................................... 179
Understanding the printer control panel................................................................................................... 179
Using the control panel ............................................................................................................................................179
Understanding the status of the power button and indicator light...............................................................180
Using the home screen.............................................................................................................................................180
Diagnostics menu............................................................................................................................................. 181
Entering the Diagnostics menu ...............................................................................................................................181
Reports...........................................................................................................................................................................181
Advanced Print Quality Samples.............................................................................................................................181
Format Fax Storage ...................................................................................................................................................182
Event log.......................................................................................................................................................................182
Input tray quick print..................................................................................................................................................183
Output bin quick feed ...............................................................................................................................................183
Printer Setup................................................................................................................................................................183
Printer diagnostics and adjustments.....................................................................................................................185
Scanner diagnostics ..................................................................................................................................................187
Additional input tray diagnostics............................................................................................................................189
Output device diagnostics.......................................................................................................................................189
Configuration Menu........................................................................................................................................ 190
Entering Invalid engine mode.......................................................................................................................193
Entering Recovery mode............................................................................................................................... 193
Service Engineer menu..................................................................................................................................195
Entering the Service Engineer (SE) menu............................................................................................................195
General SE Menu........................................................................................................................................................195
Network SE Menu.......................................................................................................................................................195
Fax SE Menu................................................................................................................................................................196
Scanner SE Menu.......................................................................................................................................................197
Parts removal.............................................................................................199
Removal precautions...................................................................................................................................... 199
Data security notice................................................................................................................................................. 200
Handling ESD‑sensitive parts..................................................................................................................................201
Critical information for controller board or control panel replacement ..................................................... 202
Restoring the printer configuration after replacing the controller board ...................................................203
Restoring solutions, licenses, and configuration settings ............................................................................. 206
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