If closed-open (closed for ink line and open cleaning ink line) and the cleaning go to all ink line to clean your printhead. Then when you closed-open (closed for cleaning line and open for ink line). Just do this twice on year, and your printhead life increase twice.Check out my other items. We want answer to you. (That's why we charge from CA residence). So, We think you understand now, how new item so expensive.
We honest and serious because we work for business, please be same for us. Please order parts before of your printer broke because it is not serious if you have business. Thank You for Your Support. Sorry we not leave feedback first, because we left 1000's feedback to customers. And nobody leave back no one feedback.Now we promise leave you feedback, when receive from you. We accept Return only in new condition and include in original packing. The item "Cleaning Valve Device (4 unit valve) For Large Format Printer. US Fast Shipping" is in sale since Friday, August 24, 2012. This item is in the category "Business & Industrial\Printing & Graphic Arts\Printing & Graphic Essentials\General Accessories". The seller is "printer_parts_2012" and is located in California. This item can be shipped worldwide.