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Tizz. Genius! Super simple. That way you totally avoid having to solder the fuse in. I'm assuming the original is soldered in and is a tiny pain in the arse to solder.

How can one make sure that the pumps are working properly?

Also, is it just the fuse. I've read transistors & capacitors may go too.

Pics would be great! Would love to see your fuse set up to imitate it. The printer printed test prints from the printer not a rip for 2 days before the fuse blew out. I'm thinking it's a bad head. I hadn't moved the wires. Thanks Also, thanks for all who have helped. This forum has been super...

So I come back after soaking the black & light cyan heads and I have lost magenta & yellow, b group. Heads work, tried cables from other heads. Fuses & transistors I suppose?

It's not hard at all to do. But, oh boy do some try & put doubt in one. I got it down now.

Just an update. The head I found rolling around in the tool bag is the Magenta and I was able to fully recover it. The new heads work great. Just changed the manifolds. Those are the yellow & light Magenta as yoi can see in the attached pic. Should have all working in a few days. :)

I'm starting with Magenta & Yellow, testing then moving on to light magenta. Right now I have 2 out red & magenta. Black may need to be replaced but it's like 60% unclogged so i'm hoping I can get it back to 100%. Definitely nervous about alignment though. I do have the service manual though.

So i got 2.5m x 8. The difference is so small I think they would work. But i'm going to wait for 2.3. Equippaint you may want to try 2.5 for the stripped hole in the carriage.

Thanks for the help. I found them at grainger. But they were 2.5 by 8mm. I got them all in SS which for the carriage is going to be necessary. Roland Member RN, can I get the from you locally. I'm in Chicago and would rather have them exact 2.3mm by 8mm. Don't mind buying 100.

I stripped a screw or 2 working on my sc 540. Does anyone happen to know the size of the screws that hold the head plate to the head and the ones that hold the head/head plate to the printer. Trying to get them locally so I can install my heads today. Thanks for all the help guys. :)

Just got the heads. :):):)

I think so too. It's just the scare factor of will it work.

I see the norm being 500. Haven't seen anything for 240. I've been googling for days.

I need one more head. Where do you suggest to source them? Also, thanks for all the help :)

Maybe air, 100% isopropyl and the roland ecosolvent cleaner?

These are new heads. Not sure if they'll have fluid or be dry. As far as soaking them. Would roland solvent cleaner be fine? I was thinking of running air through them first with a syringe.

Great thread. Lots of great info. The 2 I took off have are dead. One I found in a bag of parts I think I fully recovered. Ironic I think. I figure the guy I bought it replaced it and left it in the bag for dead. I also have 3 new dx4's from a epson stylus pro 10600 which should be arriving...

Also, how inportant is it to change the wires out when replacing a head?

You've rebuilt a head. I have fluid leaking from the sides of a dx4. Any suggestions. I think it's from under the teflon plate.