Self Test Menu - Lexmark 3350 - X Color Inkjet Service Manual

4479-XXX
A black and color purge pattern is used to clear all printhead nozzles. The
nozzle test pattern prints all nozzles on a diagonal line. There should be no
breaks in the nozzle test pattern. A break in the pattern indicates that one or
more nozzles are not working.
If a print quality problem exists, see
page 2-18.

Self Test menu

To enter the Self Test mode:
1. Turn on the All-In-One.
2. Press and hold the Black Copy button and the Power button
simultaneously until Mfg Menu Enabled appears on the LCD.
3. Release both buttons.
4. Press the Arrow button until LCD Button Test appears on the LCD.
The following are common Self Test menu selections:
1. LCD Button Test–Verifies that the control panel buttons are
functioning electrically and are being detected by the firmware.
Pressing a button shows the button ID or number on the LCD.
2. Clean NVRAM–Does a clear of the non-protected area of the Flash-
emulated NVRAM by restoring values to default or initializing the
values to 0x00s or 0xFFs. A Clearing message appears on the LCD.
If the function ends successfully, a Success message appears on the
LCD. Press Cancel to return to the Self Test menu.
3. Single Test Page–Prints the following: firmware version information,
page count, last error information, short test, thermal information,
device ID, and build information. It performs several swaths that help
debug the printheads.
4. Run In Test Copy B–The All-In-One runs standalone black copies. The
copy quality, blank paper size, and resize will depend on previous
settings that were present when this test mode was entered.
5. Run In Test Copy C–The All-In-One runs standalone color copies. The
copy quality, blank paper size, and resize will depend on previous
settings that were present when this test mode was entered.
3-2
Service Manual
"Print quality service check" on