Need Help New HP 335 with issues have been down to single printer for months.

Sorry to hear about your problems, at first I thought it was temperature issue (too low) but since you've tried adjusting it can't be that. Have you tried to put high heat on and increase the interpass delay (just shooting in the dark) to give it slightly more time to dry. Hope you get it resolved, we are (as you've heard from others) printing Arlon SLX on our 360 and it works wonderfully and no delamination issues. Really hope you get it solved!!

 

Latex is a bit duller than solvent without overlaminate. With overlam they should be pretty glossy.

The onlytime I've ever had that haze is when I print on reflective... or I'm throwing down way too much ink.

Have you let the print sit non laminated for a day and see what it does? When my printer is warming up in the winter... the first print sometimes looks like that. If it sits for a day it'll either go away, or it'll be wet and I can wipe it off... Obviously it doesn't fix your problem, and it's not a solution... but might be good to test it out.

Is it just the black with the haze? or every color?

I see you're in Canada, which province, and who did you buy the printer from? Grimco or ND, or another vendor? HP takes their products very seriously. Your vendor should be providing new inks / heads, and troubleshooting it themselves - The onlything you should be out is a bit of media while testing. And if they cant get it to print properly... It should be replaced with a new one. Of course they don't want to do that, but if you fight them on it they'll have to.

Our printers had a problem or two... faulty parts,and they overnighted new ones and had them installed free of charge. HP warranty is pretty good... If a tech agrees there is a problem but cant figure out what it is, HP will send their own tech or replace the machine.

Also... Just so you're aware, overlam will be easier to peel off on a latex print then on a solvent print. We can hand pull certain overlams off with ease on some 3M Medias... we were told it was tested, and while it's easyish to pull off... it meets their standards and will not delaminate itself. The first few vehicle wraps we did in reflective we were scared about... but the fleet we did has been out for 2 years so far, and not a single delamination issue. So while it's scarily easy to pull off, 3M rep confirmed our sample we sent in was fine.

also... I presume you have a heat gun. Does the cloudiness go away if you use the heatgun on the print? Since you've had multiple techs out to visit... it's hard to know what they've done to troubleshoot it. It could be your heater is faulty and it isnt heating up high enough... so slowing it down or turning it up does nothing, but I imagine a tech tested that. And generally when it's a faulty heater it will be one side, or spots... not the whole print.

 

Wow, that is so odd. It's not something on the material before print because you'd be able to scratch the ink clean off. That looks like it's sitting on top of the ink. The only thing I could think of is trying to get them to change the ink lines. Maybe there is some type of strange residue in the optimizer line? If you change the optimizer printhead, does it go away for a few inches or feet?

 

At this point tell your supplier to return or replace. Hps are great, but like every brand a faulty one slips through the cracks.

 

Try reading through this masterpiece and see if it can help.

https://signs101.com/threads/hp-360-de-lamination-issues.123212/

If you are at 3 months you have to demand the machine get sent back for a full refund. I would pick up the new Epson S60600 in exchange with your dealer.