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nozzles not firing

  1. ROLAND HiFi Jet FJ-50 print head DX2 not firing correctly TEST PATTERN NOT RIGHT

    Hi Guys, Just wanted to see if anyone knows much about the HiFi jets, and the DX2 print head. I am having trouble with the nozzle check pattern not printing correctly. It has the same pattern of nozzles missing in the CYAN section. I have removed the head, and ran solvent through it, and the...

  2. When is a printhead dead?

    Hello, Yesterday I replaced 12 dampers on my Roland SC-545EX for the first time by myself. I took the time and did everything very clean and carefully. When I was ready I did a test print and many of the LightCyan nozzles didn't print. I did a cleaning on the C group and got some nozzles back...

  3. Roland VS-640: Nozzles not working/Air bubbles on ink tubes?

    Hi everybody, We have a Roland VS-640 with metallic/white inks. Some time ago, white ink stopped working and reagular cleaning procedures didn't fix the issue. As we've done in the past with other solvent printers, we tried to unplug the dampers from the head, push some cleaning liquid...
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