Xerox B310 Service Manual page 132

Service Menus
Entering Invalid Engine Mode
This mode allows the printer to load the correct firmware code.
1. Unplug the power cord from the electrical outlet.
2. Open tray 1.
3. Connect the power cord to the electrical outlet.
When the display shows the following icon, close tray 1.
4. From the menu that appears on the display, press the arrow buttons to navigate the menu, and
then select ENGINE_FLASH.
132 Xerox B310 Printer
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Service Manual