Need Help DX6 Printhead replacement on a Mimaki

I would suggest reseating the head cables, at the same time checking the cables for any ink or damage.

 

did you bye a dx6 or dx7 head?? mimaki jv150/300 use dx7 printehead

 

There is a lot of confusion around the DX6 and DX7 heads. Long story short: Epson makes all of the heads I am about to mention. The DX5 print head was/is a very popular print head that Epson licensed out to 3rd parties to use in their printer designs. The DX6 head was next but Epson didn't license it out to 3rd parties. The DX7 than came out very soon after and was licensed to 3rd parties like Roland, Mutoh, Mimaki and others. Since they all skipped from DX5 to DX7 a lot of people just assumed the DX7 head was actually the DX6 when it wasn't. Now you search for DX7 and get a lot of results for DX6 heads for that reason. The lesson here is that there are a lot of websites selling parts out there but most of them are not knowledgeable about the product at all.

 

I agree with Jim check head calbles, and also clean the encoder strip.