Banding on HP 360 Pls Help

[KingsofWraps]

Hello I currently have banding on really large prints on one side of the printer.
I changed all of my print heads and maintenance cartridge is ok.
What can be causing this?

 

[dypinc]

Is it horizontal banding or vertical banding? If vertical have you cleaned the encode strip? What pass?

 

[KingsofWraps]

Is it horizontal banding or vertical banding? If vertical have you cleaned the encode strip? What pass?

8 pass horizontal

 

[dypinc]

Are you using CMYKcm or CMYK?
If CMYKcm does the job call for high light ink usage?
If CMYKcm have you tried slowing down the printer by raising the Inter-Pass Delay or going to more passes?

 

[KingsofWraps]

15 ft tall panels for a wall....going to check now

 

[GP_Oz]

As a test to remove vertical banding on 360s ypu can unhook the 3 printzone fans at the rear of scan axis. This can eliminate a type of vertical banding but it introduces a odd horizontal banding especially in the light inks.
These heater-fans are only monitored to be on..not speed nor heat and wired in series.
So..if you have a set that is not working that well you may find localised horizontal banding....in some cases.

 

[Bly]

I'd check printheads and if any have done more than about 3 litres would put new ones in.
Clean the encoder strip.
Do the "optimize print quality" thing.