why am i haveing banding problems with JV3-160SP?

[Peter Normington]

Hi welcome to UKSB,
If you said hello, and introduced yourself, told us your name, and a bit more about your problem, like what software etc.

you would have a better chance of getting some advice.

Peter 😉

[David Rowland]

Do you get any deflection in the nozzles, e.g. where all the nozzles are firing in different directions?

[gurupidal]

We had a similar problem when we first started off.
We checked the nozzle alignment (through the control panel)
And adjusted the feed of the material (this stopped the overlapping / gaps)

But most of all we made sure we were printing in unidirectional printing.

[DigitalBlueprint]

Thanks Peter,

I posted a little about my experience as well as about the business I work for in the Introduction area.

Thanks again.

Do you have any suggestions?

[DigitalBlueprint]

Hi Dave,

Thanks! That’s a good suggestion but everything seems clear after running the diagnostics.

[DigitalBlueprint]

Gurupidal,

Thanks for the rundown. You are right it does print better on Unidirectional but is it always going to have banding on bidirectional?

[Peter Normington]

does the rip you are using comp the media? IE line feed?
and is it set to override the jv3 panel settings?

If so doing a media comp on the machine is not going to work.

have you tried adjusting the line comp whilst printing?

Peter

[gurupidal]

quote DigitalBlueprint:

Gurupidal,

Thanks for the rundown. You are right it does print better on Unidirectional but is it always going to have banding on bidirectional?

As stupid as it sounds, I was told off our installer that the printer was "not designed to print in bi directional with a quality output". So what he was saying was yeah bi directional is there but don’t use it!

I’m sure there is situations where you can ie large banners, but we don’t any more.

[Azunino]

Hi there!,
What RIP are you using? , We use ColorGate in the 160 and Photoprint on the 250 and in both cases the RIP slows down the movement of the print head over the y axis when you switch to Bi Dir on mid high to High resolutions (over 720 dpi) and, in my case, time-wise this does not compensates the gain that you have over Unidirectional printing, and the quality as you might see on the final result (mostly on the shadows of black), but this does not mean that you should see any "lines" or defects in your printing, but only a difference of color from one pass to the other (caused by the different order in which the ink is laid on the surface of the material) I suggest you recheck your material calibration settings, because if your printest is correct and you only see the defect in bidirectional , your calibration might be a little off.
Another problem might be drying time, try taking your printer heater a little higher when printing in Bi-Directional.

Hope this helps 😀

[David Rowland]

bi-dir works very well… you will learn when you can use it or not.

[jimdimitris]

Hey i haven’t understood what RIP your using but i have got the Onyx, but as far as banding i haven’t had that problem in over 3 years. Perhaps a brief description of your substrate (which company manuf. , ink type (Brand, Triangle , Nazdar, Mimaki, Lyson and the most obvious have you calibrated your ink to your preferred material.

Some basic feed back and perhaps i may be able to help

[DigitalBlueprint]

A little update:

I’m using Wasatch RIP software. I use manufacturer provided profiles, and media profiles from the providers.

I also use a GretagMacbeth i1 to create profiles and calibrate my monitor and scanners.

I’ve only had banding problems for photo paper. I’ve managed to use Media Comp using the console on the Mimaki jv3-160sp for most of the material to create a better print.

The print-test looks fine. There is always a strange gap in the Media Comp for Photo. This is regardless of what setting I have in RIP.

I wonder if it’s the media or maybe that I need to add heat. I’ll try adding heat if that helps I’ll let you all know.

Thanks again, everyone.

[DigitalBlueprint]

I use Mimaki manufactured inks.