Banding problem with Epson SURELAB

[Anas BENJELLOUN]

Hi all,

I'm experiencing some strange banding since few days on our Epson SURELAB.
I know banding is a generic word for anything that looks like 'streaks' or 'bands' on prints, but the banding we get is quite strange.

I've ran probably more than 10 powerfull cleaning on the 6 heads of the surelab during this last week, the print pattern is absolutely perfect. (see attached)

I've printed purge pattern, and it seems like banding occurs only on magenta and cyan (lights cyan and magenta as well) - black and yellow are OK (see attached)

The surelab has been working last a charm for the last 6 months, until it starts banding.
The only change was a ink cartridges replacement.

Do you guys have any clues ? i'm quite desparate right now ...

 

[The Hat]

Hi Anas and welcome, that is sure one nice printer you’ve got there.

I am sorry you’re having some banding problems with the machine, but have you tried printing out a nozzle check and examining it for missing segments.

That will tell you a lot more than wasting all your ink on cleaning..

 

[costadinos]

Looks like head misalignment or wrong paper thickness setting.

 

[Anas BENJELLOUN]

Hi,
Thanks for the feedback
here's a nozzle check scan :

 

[Anas BENJELLOUN]

Also, here's the Bi-D print pattern (very weird actually) :

and the crop for -2/2 range :

 

[Smile]

If this printer has oem cis then check the air in the carts (dampers).

 

[Anas BENJELLOUN]

If this printer has oem cis then check the air in the carts (dampers).

unfortunately no CIS on the surelab, but 700 ml ink cartridges

 

[Smile]

Yes but print carts have ink tubes that go from carts to print head. So it does have OEM CIS. The usual printers without CIS have carts inserted to printhead.

 

[Anas BENJELLOUN]

Yes but print carts have ink tubes that go from carts to print head. So it does have OEM CIS. The usual printers without CIS have carts inserted to printhead.

Ok i got it
how do i check the air in the carts ?

 

[costadinos]

Not sure there is such option, but if there is, try an automatic head alignment.

From your scanned patterns it looks like the "best" is the "2" or "4", in both Bi-D settings. Try adjusting it manually to that value.