I'm making no progress in solving serious banding problems on Exhibition Canvas Matte.
The printer is six years old (purchased in 2011) and has been carefully coddled throughout its life. Almost all printing (aside from occasional Nozzle Checks on plain paper) has been on Epson Exhibition Canvas Matte, using Epson ink and Imageprint software (latest edition). For a while, we had problems with quality control on the canvas, and Epson replaced many, many rolls. Recently our volume has been lower but the canvas quality has been more consistent.
The current problem shows up on prints with very dark backgrounds, and are seen both in the image area and in the surrounding pure black background, used for gallery wrap purposes. The banding pattern is horizontal, approximately 6/inch, as exaggerated by reflections in the attached photo.
I've tried running print head alignment, which didn't help. Nozzle Checks are almost always within a simple cleaning cycle of perfect. Settings: platen gap = widest, Media Feed Adjustment = 70, other settings via ImagePrint.
Any suggestions are most welcome.
Thanks,
Dave.
One of the attached images shows the banding accentuated (by controlling lighting) -- the other disguises it. They are from the same original image.