Poorly Operating Magenta Head - Oce Arizona T220 User Manual

Océ | Operating the Arizona T220
There are also 2 nozzles out. As they are not next to each other this should not introduce
an artifact in the image and they will probably recover on their own either during the
image or during the pre/post print automated maintenance. If the nozzles do not recover
then further maintenance will be required
Figure 19 shows a magenta head that is operating poorly. There are nozzles out and
nozzles with poor directionality causing overspray. There will definitely be banding
visible in any parts of the image where magenta is used.
A dirty head, ink pooling on the nozzle plate, too much heat causing ink to dry around
the nozzles, can cause this banding.
A High Purge on the individual color may fix this - if not, try a Recovery Purge. If
necessary follow this by swabbing the affected head and finally by syringing the affected
head until the 'curtain' of solvent exiting the head is continuous – no gaps or spray in
the wrong direction.
If left untreated the overspray from this head may cause similar problems with other
heads nearby.
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Figure 19 Poorly Operating Magenta Head
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