Accessing Special Operating Modes; System Controller Board Leds; Entering Special Operating Modes - Xerox 2135N - Phaser Color Laser Printer Quick Reference Manual

Accessing special operating modes

The printer can be placed in diagnostics or other operation modes by
simultaneously holding the Menu Up (1) and the Enter (4) keys as you turn on
the printer.

Entering special operating modes

Key Combination Mode
On Line (0) and This enables the Reset Menu to become available at the control panel.
Enter (4)
The Reset Menu is not normally available to the customer, as it contains
the ability to format devices and perform a factory reset of all items.
The control panel displays Ready when completed.
To exit, switch the printer power off, then on.
Menu Up (1) and This forces the Software Update Mode on the parallel port.
Menu Down (5)
The Control Panel will display Entering... on the first line and Download
Mode on the second line. This indicates that the printer is ready to be
have its flash firmware updated.
To exit, switch the printer power off, then on.
Menu Up (1) and Forces the printer into the Engine Diagnostics Mode, bypassing the
Enter (4) controller.
The control panel displays Diag Mode 1? in the first line. This indicates
that the printer is ready to enter diagnostics.
To exit, switch the printer power off, then on.
Enter (4) and This reinitiates the NVRAM to factory defaults for all values except copy
Value Down (7) counts and consumable counts.
The control panel displays Ready when complete.

System controller board LEDs

A power LED (PWR), when illuminated, indicates +5V is being supplied to the
system controller board.
The LED HDD, illuminates to flashes to indicate hard drive read/write activity.
LED GIO2 flashes to indicate proper CPU operation.
LED GIO3; off indicates 10baseT connection, on indicates 100baseT.
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Service Guide