Anybody out there running Ricoh equipment ever try to varnish after the job has been produced off of your digital?
Not sure this counts as varnish, but I regularly U.V. coat the output from my 9100, both gloss and satin, seems to work pretty well. This is using a Morgana Digi-Coater.Anybody out there running Ricoh equipment ever try to varnish after the job has been produced off of your digital?
Looks like I may have spoken too soon. Was just trimming these business cards that I coated yesterday on our Digi-Coater using gloss Actega chemistry and this happened. Is this the kind of issue you were referring to Manafaith?Not sure this counts as varnish, but I regularly U.V. coat the output from my 9100, both gloss and satin, seems to work pretty well. This is using a Morgana Digi-Coater.
Yeah that's what it's doing. I've coated a lot of post cards on 100# gloss cover with a lot less coverage than this and didn't have any issues. Sent samples to Actega, and our U.V. lamp in this machine is 9 years old so the first thing we're going to do is get a new lamp, I'll post if that helps or not. Thankfully the Ricoh toner is a lot more durable than the Indigo Electro inks so I don't think coating is going to be quite so critical.We have had that issue before with UV off of our KM Machines. I do know that each manufacturer has different coatings for different toner adhesion....at least that is what we were told. I know that we used to have really bad "chipping" issues in the past but we haven't tried any coatings since we installed the Ricoh. It kinda looks like your UV is rolling off?
That's interesting, as it is, the sheet goes between the applicator roller and impression roller to get it's layer of coating, then it immediately falls onto a belt that carries it under the one U.V. lamp. It's a really compact machine. Not sure if I can get it to do what you suggest but I'm going to give it a try, thank you.Just out of curiosity, is your UV setup where it has a heat lamp the sheet first passes through and then the sheet is hit with the UV lamp station. I ask because we had this same problem different coater but what we had similar problems and found if we "cooked the sheet twice then followed with the UV curing station it resolved the problem. We actually added a second heat lamp station to finally rid of the problem.
If your setup is similar to what I described take the sheet after it has been coated, send it through the heat lamps (not the UV section) send the sheet through a second time then let it continue to the curing station. As I said just curious to see what result you get.
We run Ricoh 7110 and 651 printers btw.
As far as using varnish no such luck on our offset pressing applying to digital press work. Results of UV are far more superior in most ppl's opinions anyways.
Thanks for the picture, now I see what you mean. I wish ours had that capability. In the picture I pushed the feeder away and it's probably a little longer than the coater. This thing has a really small footprint which is good for space but it would definitely be nice to have that pre-heating unit like you have. At this point we're looking into either a different brand of chemistry or a modified version of what we're running.Ah okay I see. So we had the option as well not to buy the flashing station, but we did. Problem was it didn't flash it long enough or really "cook it" for lack of a better term. Without that we experienced grief as well.
Here is a look at how our machine is setup and I noted the stations:
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