I think the magenta nozzle on my Epson Stylus C66 printer. It never even prints out red let alone red with lines etc. The red comes out as a white space. I have done all the maintenance programs on screen and then manually cleaning all the heads with kitchen paper. I always use genuine cartridges. What do you think? Any help much appreciated. :)
Epson print heads work on the piezo principle That is on command ,an electric current sqeezes the print head which is a type of crystal - so it can fail.
How ever the download utility will clean if it can. Failing that try the following Remove the cartrige and with a syringe if you have one or a drinking straw, if not introduce some distilled water with a dash[10%] of vodka or other clear spirit. and suck it back and forth If it is a dried ink problem this should clear it. For further use take an old cartrdge ,pierce the refill holes ad flush through with distilled water and then refill with a solution as above- you will then have a head clean cartridge.