if you are still working out this decision, I would avoid the 1400 for the media you have mentioned. It's paper handling is very basic and reliable primarily for thin photo and office media. It will pass thick media for a bit, then have more and more trouble, leading to frequent necessary cleaning of all feed mechanism. It's very maddening and gets to the point where it won't even pass thin bond for nozzle checks.
I'm getting rid of mine for that very reason, and a 1900 is on the way, hopefully it performs better in that regard.
For the stated purpose, and also for K6 use, it's otherwise a fine little printer on thin and medium media.
Tyler