epson L565 lines on printing

Epson L565 , lines on printing , L210, L130 , L220, L310, L360, L365 Epson 900 thin blue horizontal lines When printing photographs at high resolutions, my Epson Stylus Color 900 seems to have one blue print nozzle firing at all times. A single blue line is printed horizontally with each pass of the print head, and it extends off the left and right edges of the paper (even though the image does not). There are 6 lines every 5mm, except at the top and bottom when the paper does not move as much (they are very close together there). Printing text pages or the nozzle check pattern does NOT produce these lines. I have run it through the cleaning cycle several times from the print utility software, printing a nozzle check between each cleaning. Any ideas? Easily fix the problem  watch the video......

epson L565 Reset , lines on printing , L210, L130 , L220, L310, L360, L365   What Are the Causes of Fine Vertical Lines When Printing Low Resolution How can I tell if my printhead is partially blocked? If a slight blockage is present you will notice breaks in your prints as the printhead moves from left to right dispensing ink. These lines will be in a regular pattern and usually run consistantly down the length of the page as demonstrated below. Looking at this image it may not be evident that the gaps in this text form a regular patten. It is particularly difficult to identify a partially blocked printhead when only printing black and white text as only a single colour ink is being used and gaps also appear naturally. To demonstrate what I mean clearly I have marked in red on the same image where the lines are occurring.Conversely, printing colour images or photos presents an entirely different issue as it is not always evident which colour is at fault. This is be...