This is an example of nozzles mis-positioned or malfunctioning. You can see the broken or the skewed line, in
this case marked in yellow to help you to understand the issue. In the service plot there are no yellow marks.
Corrective Action
If the printer has nozzle defects, it does not mean that you will not get perfect print quality results because
the printer can automatically compensate for this so there is no need to replace the Printhead.
The method of improving Nozzle Defects is to:
1. To clean the printheads, go to the printer's front panel and select the ink, then Image quality
maintenance > Clean printheads. Then select which printheads you would like cleaned. You can clean all
of the printheads or only some of them. Your choices are:
●
Clean all
●
Clean Y
●
Clean M-C
●
Clean MK-MK
●
Clean D-DG
Cleaning all of the printheads takes about five minutes. Cleaning any two printheads takes about three
minutes. Purging the ink takes about six minutes.
2. Reprint the Printhead Nozzles Test Plot to check that the defective nozzles have been corrected.
3. If the problem continuous, replace the defective Printhead.
Diagnostic Part 2: Alignment test
This test is designed to check any color-to-color and bi-directional misalignment the printer may have. The
Image Quality Service Best should always be used to print this plot.
1. If the printer is experiencing horizontal misalignment problems, the Alignment Test will show
something like this:
ENWW How to use the Image Quality Service Diagnostic Print 145
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