BestCode Next Series 8 Technical Manual October 2022 Page 139 of 290
Drop Breakup Appearance
No Breakup
This image shows what the jet looks like when
there is no modulation to the drop generator.
This is caused by bad connections or damaged
drop generator.
Good Breakup
This image shows what good ink jet breakup
looks like. The drops are round at the end of
the charge electrode and the filament is less
than 50% of the length of the charge electrode.
Short Filament
This image shows bad breakup. The filament is
not visible in the Charge electrode. This will
cause phase and print issues over time.
Try reducing the Modulation voltage
SPECIAL EXCEPTION:
88SM (40 Micron) CIJ has a Short Filament, this
is acceptable.
Long Filament
The filament is too long, and round drops are
not visible. Charge will not be applied to the
drops and print will be very poor.
Try increasing the Modulation voltage.
Satellite Drops
This breakup has small droplets in between the
large drops called Satellite drops. These drops
have charge and cause messy print and also
make a mess on the high voltage plates.
Satellite drops are caused by the tail of the
drop breaking off into a smaller drop.
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