Lexmark E320 - Using the Special Function Menu (E320;E322)

Diagnostic information 2-105
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Using the special function menu (E320/E322)
Printer settings for solving print quality problems are in the special
function menu: restore factory defaults, Hex Trace, print quality test
pages, and advanced troubleshooting mode.
To enter the special function menu:
1. Turn off the printer.
2. Open the top cover.
3. Turn the printer back on.
4. When the Error light comes on, indicating the top cover is open,
press and release the operator panel button twice quickly.
5. When the Error light and Press Button light blink, close the
cover.
The special function menu is activated.