UV inks not drying IJC258

[leonsignsltd]

We've had issues for a long while now with certain colours not drying on our Oce Arizona 318GL. We are using the IJC258 ink that is apparently more durable/better adhesion to coroplast.
The colours that don't seem to dry/cure properly are the light blues in images such as the sky or light beige.
We've tried bumping the lamps up to full - no difference
We've tried single direction printing rather than bidirectional - this is what Canon recommended to keep the UV light on the print for longer, no difference.

I'm thinking our best option is to buy a handheld UV lamp to go over the wet inks after the print is done but we shouldn't have to resort to that

any help would be appreciated

 

[Grizzly]

What material are you printing on that is having issues?

 

[Smoke_Jaguar]

Put the print outside on a sunny day for 15 minutes. If it cures, check your lamps to see if there might be ink on the glass. If that doesn't do it, might have some ink doing funky things due to a bad batch, expiration, etc. Better yet, make a test print divided into ink colors so you can check each individual color to see if just one is having issues.

 

[tollerdad]

Check you bulb hours. Change if over 500 hours for UV. Also consider Lipla inks. They run great on our Arizona.