232 Chapter 5 Print Quality
Print Quality
For each Printhead, you can see both the adjacent and the consecutive nozzles. For every Printhead there
is a different horizontal band that can be identified with the help of the template marked with the colors
of the Printhead used at the right of every band.
There are a series of numbered stepped diagonal lines. If one or more of the nozzles are malfunctioning
or mis-positioned, you will see that the stepped lines are broken or misdirected in one or more places.
In this example of the plot the print shows a nozzles health pattern without
any failing nozzles. In this case, the case shown corresponds to the black
color.
This is an example of nozzles outs. 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.
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.
For a more in-depth view of the health of the nozzles you can print the Advance Nozzles Health test plot.
Corrective Action
If the printer has nozzle defects, acceptable print quality results can still be achieved because the Printer
can automatically compensate for this, there is no need to replace the Printhead because of nozzles out.
The method of improving Nozzle Defects is to:
1. To clean the printheads, go to the printer's front panel and select the ink menu, then Image quality
maintenance > Clean printheads. Select which printheads you need to clean. You can clean all of
the printheads or only some of them. The selections available are:
•Clean all
•Clean M-LM
•Clean C-LC
•Clean K-Y
2. Reprint the Printhead Nozzles Test Plot to verify that the defective nozzles have been corrected.
3. If the problem persists, replace the defective Printhead.
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