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There are two types of pumps that can be used in the Sp-300 and the one you picture is the old style. There is also a newer style one that only has 1 intake and output see below. Also, be careful with the white tube pumps. Some are not solvent resistant. If the tubes are clear they are solvent...

The Mimakis do it too but their wiper mechanism is designed in a way that if the head hits the wiper it can slide by without jamming. The only way too turn it off would be to turn auto cleanings off. Not sure if that is possible on that model though.

I don't have a ton of experience with that printer but I know for sure it wipes the heads when it does periodic cleanings. If the wiper didn't get out of the way and the heads hit it, that would cause the machine to either error out and/or just freeze to protect the heads. I would look at the...

What kind of specs are you running on that computer? Sounds like a resource issue possibly.

You need to set them up as 2 separate machines in production manager and then make sure you choose the correct port. One should be "USB_PRINTER_0" and the other should be "USB_PRINTER_1" As long as those ports are set properly it should distinguish between the two.

It definitely looks like some sort of liquid is contaminating the vinyl. Since it happens on multiple vinyls I am assuming it's coming from the printer itself. Check your pinch rollers to make sure there isn't some sort of grease on there. The first image looks like it might be related to the...

The UCJV will sound about as loud as the CJV. Same pump.

Can't help you with the Roland. Even at the best calibration it won't add up to the newer models. As you said, those old heads just don't compare.

3640 has a water based adhesive which is good for cost but not as aggressive as a solvent based one. 3165 is a similar product with solvent adhesive. That should work but obviously you would want to test before a long run. Arlon DPF8000 would work without a doubt but is on the pricey side and...

The current Mimaki model is the JV150 and has a light black option. You are absolutely correct that the Epson head has smaller drop size but for the most part is is using variable dot sizes around the same as the Mimaki. From viewing distance, you can't tell. The JV33 used a DX5 head and you...

I was comparing the Mimaki and Epson current models. I guarantee you I could put 2 prints in front of you and you wouldn't be able to tell the difference.

Just to clear some things up, Epson obviously has new tech because Epson developed the latest head technology and doesn't license it to Mimaki yet. So yes, Mimaki is one generation back compared to the Epson. That being said, a properly calibrated modern printer should print beautifully and...

Take a look where the Ethernet cable connects to the printer. There should be a little LED light lit up near it. If it is orange, one of your network components is using an older tech which is slower. If it is green then it should be nice and fast. That's the first thing that came to me when I...

I mean a post asking for the manual.

Yeah you have to find someone who has one. Lot's of people on Signs101 have a collection of them and send them to people. Not sure about your model but it's worth a shot making a post looking for one. I just looked on the dealer end of Mutoh's FTP site and they don't even have it on there. Not...

Find a tech manual for it and that will give you the info you need. It's an older machine though so there won't be a lot of resources for it online.

As GTS said, it's most likely the septum in the ink cartridge not sealing with the needle properly. Whether that's because they have been taken in and out too many times or a defective cartridge is hard to say but to have that many defective cartridges would be pretty rare. One is rare even. The...

You have cross contamination. Usually it's caused by a clogged/partially clogged cap top or pump. The cap doesn't drain fast enough so the ink receded into the other channel. I usually just flush the lines to make sure they aren't clogged. Other than that it could be a weak damper not holding...

The print feed calibration is the only distance adjustment as far as printing goes. You can try different pinch roller settings as that can affect the feed. Also, you can get Teflon tape and apply it to the platen in strips between the vacuum holes to allow the media to slide across the platen...

This is an important distinction. A printer/cutter usually cuts at about 20% of full speed and about 75% max pressure of a stand alone cutter. Not to mention the amount of production you lose from not being able to print and cut at the same time. If your main revenue source is print and cut...