Need Help Color outliers with 150-160 UV

[sellerAndi]

Hello everyone, I have a problem with my 150-160 UV. The test print looks good, but with black I have some color outliers. Does anyone have an idea how I can fix this? Many greetings Andi

 

[Solventinkjet]

Check the bottom of the head for ink build up and clean it up. It looks like it could be ink dragging along the print. Also, check your pressure system to make sure it's producing the correct negative and positive pressures. If either are off, it can cause issues like this.

 

[Smoke_Jaguar]

Also, could be head height or maybe vacuum force on the platen is too low.

 

[sellerAndi]

Thanks for your help. I checked the head below, but it's nice and clean. Streaks can't really do anything because it doesn't happen with every print. Are there instructions to check the positive negative pressure?

 

[Smoke_Jaguar]

If you still have your install guide it covers it. It's in service mode under #TEST> Air Pressure Check section

 

[sellerAndi]

I have the operations manual but i cant find this part?

 

[Smoke_Jaguar]

Need to be in service mode. When turning printer on, hold Func1 & Func3 keys until the printer beeps. Go to menu and there will be the #TEST, #ADJUST and #PARAMETER menus available.