Fix Epson Workforce WF-3640 Blurry Printing

I am a doctor. In my hospital, I am using an Epson printer to print reposts. But days ago I saw the printer take 15minits to print a single page. I want to know how to Fix Epson Workforce WF-3640 Blurry Printing machine immediately.

You would need to find a Epson printer forum, this forum is about Fritzing (a printed circuit board package) not printers.

Peter