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A head wash like Joe House mentioned is the only way to be 100% sure. If you don't, any time you have issues you will wonder, should I have flushed?

Here in Colorado if I sell ink to a sign shop it's not taxable as the ink ends up in the end product that my customer is selling. If I sell them parts for their printer, they make us tax them as they don't end up in the final product. Also At least here in Colorado, that doesn't fly. If your...

Other than the head alignments and sensor adjustment, any presets you had saved in the Media Type menu will be gone as well. Things like heater settings, print feed etc. Most people let their RIP handle those settings though. I'm heading out for the day due to some nasty snow so if I don't...

As most have said here, the JFX200 is a great machine. As far as service goes, ask your dealer two questions. 1. Do you have a Mimaki certified tech who is specifically trained on the JFX on staff? 2. How many units do you have in the field? If the answer to number 1 is yes, you are in good...

It is indeed. Usually you can skip the uni-directional ones and go straight to the bi-directional.

Power on the machine while holding the up, right, and down keys. Once it boots, go to the adjustment menu. In that menu look for, "Check 4: Rear/Edge sen." and enter. From there follow the prompts on the screen. It will automatically adjust the rear and edge sensor but you have to load and...

That scratch killed the head unfortunately. Only way to fix it is to put a new one in. Those scratches usually come from head strikes on either media or the media clamps. That or someone left a screw on the platen after working on the machine and it rolled over it.

I would check your head alignments and fine tune them. Looks like you are getting some slight banding which could be the feed calibration as well. The nozzle check looks pretty good but the cyan is deflecting a little which could be causing some issues. You also have a little cross contamination...

That part number doesn't show up in my Mimaki price list either but they are being more stingy with these new UV machines. They won't send me pricing unless I get officially trained on them. I don't usually do this but, there may be one available in another country for cheaper if you google the...

In that case unfortunately it's probably a failing head. I generally see 3 to 5 years when using solvent inks. Anything over 5 is a good run. You could try replacing the head cables as there may be an electrical issue going on but that would be my last ditch solution. We have those heads in...

General rule of thumb for solvent inks is about $0.30 per square foot on the high end.

Also check the bottom of the head for any physical damage. Usually when such a straight line of nozzles is missing it can be a nasty head strike. In that case you will need a new head.

You are a brave man. Good luck!

You might just need to clean and grease the rail. Also, make sure your encoder strip is clean as well. At the end of the day it could be the motor though.

Unfortunately whenever I see a perfect nozzle check but there are still streaks in the actual prints it's a failing print head. Looks like your magenta is the problem for sure. How old is the head?

It's a standard computer power cable. Here is a 15 footer on Amazon.

Which machine are you working on? Not to over simplify but it's pretty much just removing the old head and reversing the procedure to install the new head. Depending on the machine you are fixing it could be different but after the head is installed you will need to fill the sub tanks, do an air...

What do your magenta nozzles look like? Above I only see the black ones.

Did you change the o-rings when you changed the damper? Any little bit of air getting in the system will cause colors to drop and bad o-rings will do that. I have also seen on older machines where the ink line is deformed from the o-ring squeezing it for years and years. Usually I will snip that...

Anywhere online you see them selling service manuals they are selling something that is not theirs to sell in the first place. Do a search here on Signs101 and you will find a bunch of posts where people give them away for free.