My experience with Gutenprint has not been as successful as yours. I tried the Gutenprint driver that came with Snowy and found that many features were missing. I then downloaded the driver from Epson and all was well.

Note that this is a separate issue from what I posted before. That occurred before I had upgraded to Snowy.

Jon

macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365