Lexmark 3350 Service Manual - Page 40

Self Test menu, Black Copy, Power, Arrow, Cancel

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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 "Print quality service check" on 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 Flashemulated 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

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4479-XXX
3-2
Service Manual
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
“Print quality service check” on
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.