Thanks for letting me know!

This was a 10 year old bug that went unseen because prior code just never "stepped in the booby trap".  Turns out my new code pushed some new limits so it did.

The fix is in 2026.101.

Regards,
Mike

I tested 2026.101 extensively on the 8550 so I think you have an issue on your end.  Possibly corrupt printer settings or a printer/driver issue.  Have you tried printing with the print preview turned on in the driver to see if that preview also looks blank?

Regards,
Mike

If you get a picture on the preview but the printer doesn't print, that points to a likely driver problem because that Epson preview window is showing you what the driver received (and is about to print).  If what you see in the Epson print preview doesn't print, then your driver just lied to you: didn't print what it said it was about to print.

Can you post a screenshot of the main window showing the live view with the Printers and Settings tab open so I can see the printer settings?  That way I can replicate all your settings and try to print on my 8550.

Why 2025 would work and the 2026 version doesn't: I can't answer that.  The 2026 version will be sending slightly different (better) pixel data but I don't know why that would affect it.  I guess it's also possible that the 2026.100 bug corrupted some memory that isn't being used by 2025.105: to test that, reboot your machine and try the 2026 version again.  If you still have a problem, you can hold the Shift key, click the "Properties" button to open the printer driver, set up your media type, size, etc. in the driver, click OK, and try to print after doing that (in case some settings got corrupted).

Regards,
Mike

More sreenshots.

Thank you!  I think I see something in your screenshots.  I was able to download that Keith Cooper test image and for me it prints as a black rectangle on my 8550.  I think it has something to do with the grayscale gamma 2.2 color space.

Looking into it now...

Regards,
Mike