A Digital Printing Network

Color Issues

I am having a big issue printing yellows the last week or so. They start out very green and then slowly fad to yellow after about 8-10 inches of material. Yesterday I cleaned my VS300 and the head had what looked like beads of blue ink all over the head which I have never seen before. Also the capping station had a pool of ink in it. What could be the cause of this issue and how can I go about resolving it?

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Permalink Reply by Butch on October 24, 2011 at 2:14pm

Lorri,your print head is going bad but you may be able to correct some of the issues. I had similar test prints and found out that the wipers were pushing dried ink to the end of the head covering some of the nozzles. I had to manually remove that dried ink to get my nozzles and deflections corrected. If you would like to know the proceedure I used I can send you a PM. I would rather not post it to the forum because some people would try it on their machines when they didn't really need to.

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Permalink Reply by Lorri Schmidt on October 24, 2011 at 2:52pm

Thanks I sent a friend request.

I plan on moving my VC to new building around August 2012, so will have tech out at that time to check everything over after move. So if possible I'd like to limp along my machine until that time to only pay for 1 trip out. Obviously if it can't wait, I'll have to cross that bridge sooner.

I'll wait to hear from you. Thanks

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Permalink Reply by Butch on October 24, 2011 at 3:57pm

This before and after of a manual head clean with my added soak.

Attachments:

IMG_0190[1], 1.8 MB

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Permalink Reply by Lorri Schmidt on October 24, 2011 at 10:19pm

Did you have to replace your head in time? What was the approx. cost of that?

Also do you have any guess as to why the heads block? I know I don't run it constantly but still do all the maintenance(as I was taught when machine set up). Obviously no one can know for sure but just a guess.

What ponders me is it printed great a week and a half ago and then BAM, it's bad or clogged. Doesn't make sense.

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Permalink Reply by Butch on October 25, 2011 at 11:58am

haven't had to replace yet been doing this once a month for 8 months - the pic is abefore and after of last week