Power-On Operations - Lexmark T420 Service Manual

4048–00x
Power–On Operations
To access the printer operations for the 4048:
1. Turn off the printer.
2. Press and hold the buttons in the following table for the
operation needed.
3. Turn on the printer. Hold the buttons until the lights cycle on the
operator panel.
Operation
Enter Configuration
Menu mode
Print the Print Quality
test pages
Enter Diagnostics
mode
Print the Print Quality
test pages
Reset NVRAM and
enter Normal mode
Power–on action
1. Power on with top cover open and Continue
pressed.
2. Close cover once the error light is displayed.
Top cover open with Continue pressed. (Cartridge
Lockout function enabled)
1. Power on with top cover open and Cancel
pressed.
2. Close cover once the error light is displayed.
Top cover open with Cancel pressed. (Cartridge
Lockout function disabled)
1. Power on with top cover open and both
Continue and Cancel buttons pressed.
2. Close cover once the error light is displayed.
Diagnostic Information
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