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The SP-540V is a slow, but steady and reliable workhorse and very easy and inexpensive to repair and maintain. You will find plenty of tech support on this forum, as well. As was stated, it's about your volume of work. New and shiny isn't always as good as old and reliable...

"I locked the head & had it flat in the bed of my truck". Does this mean you laid it down on its side or was it upright on the wheels?

To do the ICC profile itself in Onyx requires a version that allows it. There are variations of Onyx. Do you have Postershop or Production House? If I remember correctly, ICC creation is only available in Production House in Ver 12.

What is the canvas brand and type? Maybe a pic of the label...

Ribbon swapping is a useful technique when no channels are firing at all. In your case, it will not prove anything, because your print head is firing, just missing a huge section of nozzles. I would examine the bottom of the print head for any physical damage or marks or ink buildup. Also look...

Agree with P Wagner, you are going overkill on the number of patches, which could account for the jaggedness of your curves. Go with the default of 31 patches. I get it on the resolution, it's what works for your customer. I would also suggest you press the total ink limits and make your...

Please let us know which printer model you are using. This will help to suggest troubleshooting steps. This pattern is usually indicative of ribbon connection problems, but you have replaced the ribbons and it usually shows up in the test print, as well, which I don't see here.

First question is are the installed parts, especially the caps, OEM or aftermarket parts? If not, I would suggest replacing them with OEM caps. As stated, pushing ink through the head is a risky technique and can easily damage the head internally. Pulling ink also needs to be done with care and...

"Outgassing or whatever they call it in your village is a myth that can be used to scare small children into going to sleep. Solvent dries via evaporation and when it's dry, it's pretty much as dry as it's going to get." Beg to disagree based on experience in solving this phenomenon with...

Several things come to mind. As previously mentioned, it looks like the surface wasn't cleaned properly, as I see bumps under the decal. But most likely the vinyl wasn't allowed to outgas properly. When you are going to contour cut into the design (bleed cut), you MUST allow the ink to fully...

Excellent! It's all about ink tight integrity - no air leaks allowed...

You should do a test draw at the beginning of the day and see where the cross contamination is. It could be a bad cap. Check for any swelling of the inner area of the cap where it might be touching the bottom of the head, causing ink wicking from one channel to another. Please post a pic of the...

What fixed it?

Excellent!

Hello Seth! I've done a lot of sublimation profiling using Onyx. I'm going to ask a stupid question, because sublimation profiling requires just a touch of faith. Are you reading the cloth or the paper? I ask because the weird jaggedness of your readings is very strange. I would like to see...

I remember those! My electronics experience goes back to the days of tubes. First thing you did was look to see all the filaments were glowing...

Please post clear pics of the problem you are having...

Agree absolutely! I do the same in looking for parts. There are quality aftermarket parts, but you have to weed them out. Then there are parts that experience has deemed that OEM is the only choice.

It sounds like you have everything under control! So it looks like a $2000 repair, much better. If you do need a tech, I have worked on a number of different Mutoh models and I'm across the state from you in Delray Beach. Post if you need any more help...

That sounds like a typical dealer response. The $4000 estimate is incredibly high. Printhead, maintenance station and free dampers from solventinkonline.com will cost you right at $2000. Printhead w/free dampers - $1500, maintenance station - $500. If the maintenance station is the original, it...