I don’t know what the file size limit is.
You can send a direct message – click on the recipient’s avatar and there’s a message button on the page that comes up. Again, I don’t know about size limitations, but you can send an email address.
Welcome. I don’t know if the Fac-ette machine I have is the same as yours, but I do have a copy of the manual which I’ll attach. I own a Gemmaster II which may not be the Seattle version. In case it helps, here it is: