However, If the pen rubber caps are detected to be wrongly adjusted, it is recommended to run a second
DA cleanliness routine.
A wrongly adjusted rubber cap in combination with an idle printhead for a long period of time (a few
days) can contaminate a volume of agent big enough that a single DA cleanliness execution is not able
to clean the pen completely.
After a second execution of the routine, if the markings have disappeared or they are fading the
cross contamination was external, and the dirtied agent has been or is being ejected. In this case, run
additional routines until the DA is no longer visible and thus clean. No pen replacement is required.
Recover (clean) the printheads
The printer can try to recover the use of a malfunctioning printhead by cleaning it.
At the front panel, tap the Maintenance icon , then Printheads > Settings > Printhead recovery 1. If
the initial r
ecovery is not completely successful, you can try Printhead recovery 2.
Airflow check
This topic explains the concepts involved in this subject.
For optimal printer performance, the ambient temperature should be maintained within the specified
r
ange (see the site preparation guide), and the airflow into and out of the printer should be unimpeded.
● Make sure that the print-zone inlet (behind the printer) is not blocked by any obstruction.
● Make sure that the fans on top of the printer are not blocked by any obstruction.
Air leakage check
This section provides instructions on checking for air leaks.
Undercarriage protectors
Undercarriage protectors are the seals that are installed at the bottom of the carriage that close the
gap be
tween the perimeter of the printheads and the carriage enclosure.
1. Turn the printer off.
350 Chapter 12 Troubleshooting
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