Arizona 550 XT Banding Issues

Solid colors were not previously a problem or did you recently start printing more solids and the banding has become more apparent?

 

Did you replace any heads recently? When last calibrations were done? Which calibrations? If the printer is 6 years old, heads may be weaker than before, so calibrations may be required. 550 also have one calibration, which is a pain in the a** - density.
Is the banding related to any particular channel?

 

Our XT 550 just died a few months ago, but I remember solid deep blues like that being problematic. I believe there is a Quality Smooth mode that helped a lot.

 

Quality smooth is pretty slow though.
We had a bit of banding on our 660 like that.
We had the heads calibrated recently after a head strike and quality has improved a lot.
Thats the software calibrations they do with a scanner.
Took the tech best part of a day but well worth it.
We really only use production mode on corrugated plastic though and quality on most other substrates.

 

Looks like a density banding. Probably need a head alignment.

 

Sometimes banding can also be cause by ink drying on the glass plates under the UV lamp shutters, I'd check that area to be safe as well.

 

Hi, I have a similar problem with Arizona 550GT. Blue color makes me the same problem. This is what my press looks like today and the service does not know much. Were you able to sort it out? Nozzle check is ok.

Thanks

 

Arizona 550 requires an installation of shims, when the heads are replaced. Also one of the calibration steps is a density balance calibrations - was it done?