Need Help Yellow no fire Roland BN20

[sekorse]

Hello, I have a problem on my Roland BN20 printer that I can't solve... the yellow ink doesn't come out at all most of the time, so far I've already changed a LOT of parts but the problem persists... I've already changed :
- The print head
- The 4 flat cables of the print head
- dampers (several times)
- the cap-top
- the connection between the dampers and the ink tubes
- the entire ink circuit (hose, seals, brass screws)

My printer is set to CMYK+Mt, but I use a cleaning cartridge instead of a metallic one, and my ink has always been Eco Sol Max 3 ORIGINAL.

After checking, I notice that there's a bit of liquid/ink on the edges of the cap top (see photo), do you think it's defective? I had the same problem before changing it... I changed it thinking it would solve the problem at first...

 

[cornholio]

There are bad Max3 yellow cartridges. When I started having those issues with several customers, I switched then to Max2. I never had issues with Max2.

 

[sekorse]

Hello, I'm on my 3rd different cartridge from different suppliers (new), and the problem persists, although I've never had this problem before and I've always used EcoSol Max3.

 

[Jim Hancock]

Is the cap a Roland OEM cap? If not, you should replace it.

 

[Jim Hancock]

FYI, it's not a good idea to start a second post on the same issue. The original post shows the continuity of the troubleshooting process. I'm only going to post future responses on the original post.

 

[cornholio]

Hello, I'm on my 3rd different cartridge from different suppliers (new), and the problem persists, although I've never had this problem before and I've always used EcoSol Max3.

That's why I changed to Max2.