Hi,
I'm looking for all possible insight to solve one very annoying issue.
For over a year now, I was printing photography and artworks in my studio for photographers and artists alike, for their private sell or gallery exhibitions.
Last week I had a different request, friend asked for a print of diplomas since his other print studio (offset print) screwed something with delivery and they didn't meet the timeline and he needed finished products ASAP.
I print photo and art, never had any text (other than some watermarks) - and I was stumbled by the inability to print those diplomas right.
I attach the original file, photo colors, contrast - everything was perfect.
But black letters - random white edges appeared, printing 5 A4 diplomas on 42-inch roll those were not appearing the same on each image - some had more some had less of white around the edges.
It drove me crazy, we made nozzle check (perfect) but cleaned it anyway. Print head alignment: first auto standard, second auto fine, and then manual, with extremely meticulous analysis for selecting values. Feed adjustment for quality.
None of those solved issue, maybe helped a bit, but I still could see those white edges around the black text.
I tried to blame the source file, but I made a "test" in photoshop, blue gradient background with black letters on top of it - and the same thing happened.
In the end, importing source pdf into PS with CMYK color range allowed to print with very minimal issue, and I was able to select the required amount of prints that had no visible issue.
I'm devasted, so many hours went into so small thing, and I didn't came out knowing anything better.
Any photography or artwork has no issues with lines, edges contrast sharpness, or whatever...
Printing on Canon Photo Pro Matte, Canon Fine Art Smooth, Canson Baryta Prestige, Canon Superior Fine Art Textured...