This is really got me stumped ....
I have a b&w image. When I print it the trailing edge gets a cyan/magenta dirty mark right across it.
I have rotated the print and the same happens - so that means its not the image.
I have changed stocks and it still happens.
I have printed other images in colour on the same stock without issue.
I am printing with 15mm (3/5in) of the edge though the printer meant to be able to do borderless.
If I reduce the print size considerably (print stops 50mm from edge/2inches) it disappears.
I have been using the Epson Fine Art Velvet their Cold & Hot Cold Press papers.
Any ideas appreciated