Diagnostic Mode - Dell 2355DN Service Manual

Alignment and Troubleshooting

4.1.3 Diagnostic Mode

4.1.3.1 Entering/ Exiting Diagnostic Mode
To enter the diagnostic mode, press 1,2,3 number keys simultaneously.
When the password dialog box appears, enter "1934" and press the "OK" button.
To exit the diagnostic mode, press the home button at the left upper corner of the display.
When exit the diagnostic mode, a popup window shall display.
Selecting "Yes" in "Reboot Copier "will reboot the set.
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Service Manual