Lexmark 7000 Color Jetprinter
(260-2985)    How To... Run The Print Nozzle Test     Faxback Doc. # 45602

Run the print cartridge nozzle test to clean the print nozzles.  A test
line prints so you can see if the cleaning process was successful.  Use the
nozzle test:

  * When you suspect the nozzles are clogged

  * When characters are not printing completely

To run the nozzle test:

1.  Make sure there is paper in the automatic feeder.

2.  From the Printer Control Program, click the Cartridges Tab.

3.  Click the Clean Print Nozzles button.  The printer feeds a sheet of
    paper and prints the nozzle test pattern.

4.  Examine the test pattern.

This example shows a test pattern of all nozzles functioning correctly.

|-Y-|-Y-|   |   |   |   |   |   |   |   |   |   |  Note: The letters Y, R,
|   |   |-Y-|-Y-|   |   |   |   |   |   |   |   |  & B represent the colors
|   |   |   |   |-R-|-R-|   |   |   |   |   |   |  Yellow, Red, & Blue in
|   |   |   |   |   |   |-R-|-R-|   |   |   |   |  this diagram.
|   |   |   |   |   |   |   |   |-B-|-B-|   |   |
|   |   |   |   |   |   |   |   |   |   |-B-|-B-|

|---|---|   |   |   |   |   |   |   |   |   |   |   |
|   |   |---|---|   |   |   |   |   |   |   |   |   |
|   |   |   |   |---|---|   |   |   |   |   |   |   |
|   |   |   |   |   |   |---|   |   |   |   |   |   |
|   |   |   |   |   |   |   |---|---|   |   |   |   |
|   |   |   |   |   |   |   |   |   |---|---|   |   |
|   |   |   |   |   |   |   |   |   |   |   |---|---|


===================Yellow==================================================
====================Red====================================================
=====================Blue==================================================

======================Black================================================

===================Yellow==================================================
====================Red====================================================
=====================Blue==================================================

======================Black================================================

===================Yellow==================================================
====================Red====================================================
=====================Blue==================================================

======================Black================================================


|-Y-|-Y-|   |   |   |   |   |   |   |   |   |   |  Note: The letters Y, R,
|   |   |-Y-|-Y-|   |   |   |   |   |   |   |   |  & B represent the colors
|   |   |   |   |-R-|-R-|   |   |   |   |   |   |  Yellow, Red, & Blue in
|   |   |   |   |   |   |-R-|-R-|   |   |   |   |  this diagram.
|   |   |   |   |   |   |   |   |-B-|-B-|   |   |
|   |   |   |   |   |   |   |   |   |   |-B-|-B-|

|---|---|   |   |   |   |   |   |   |   |   |   |   |
|   |   |---|---|   |   |   |   |   |   |   |   |   |
|   |   |   |   |---|---|   |   |   |   |   |   |   |
|   |   |   |   |   |   |---|   |   |   |   |   |   |
|   |   |   |   |   |   |   |---|---|   |   |   |   |
|   |   |   |   |   |   |   |   |   |---|---|   |   |
|   |   |   |   |   |   |   |   |   |   |   |---|---|

5.  Compare the diagonal line above the printed bars to the diagonal line
    below the printed bars.

Look for a break in the diagonal lines.  A broken line indicates clogged
nozzles.

If the bottom line has fewer breaks, or better print quality than the top
line, run the test two more times.  If the print quality is satisfactory
after running the test three times, the print nozzles are clean.  You do
not need to complete the remaining steps.

If the print quality of both lines is not satisfactory after running the
test three times, go to step 6.

6.  Remove and reinstall the print cartridge.

7.  Repeat the nozzle test.

8.  If the lines are still broken, wipe the print cartridge nozzles.  For
    instructions, see How to Install and Maintain Print Cartridges.

(/BKL-11/24/97)

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