Epson printers will not print full image

My MacBook Pro 15" mid-2012, 2.7 Intel Core i7, 16G RAM, NVIDIA GeForce GT 650M 1024 MB, running Mac OS X 10.11.6 has suddenly stopped printing full images on a letter size page. I have multiple Epson printers: an Epson 4800, an Epson 9890, an Epson WF3540, and an Epson WF 2530 at another location.

I will send a full size image, set to print on a standard letter-size page, and I will get a cropped image printed in the upper right corner of the page, always 4x6". This behavior is consistent with all three printers listed above. I also have a Canon black and white multi-function laser that will print the exact same image properly, although it's black and white laser. My production computer, a Mac Pro, prints the same files with no problems.

I have reset the printing system and reinstalled all of the print drivers (I have a 4800, 9890, and 3540 in one location). This behavior started happening with OS X 10.11.6. I am using the built-in Epson driver for the 3540, but the Professional drivers for the 4800 and the 9890.

I've run Cocktail to repair permissions and clear the caches, then restarted the computer. Same behavior.

The Epson drivers for the 4800/9890 are both version 9.33; the two small Epsons update using Apple's Software Updater.

I'm at a loss as to what has caused this issue. It's a real show stopper for this particular computer. At first, I noticed it with Filemaker Pro. Then it also showed up in Lightroom. Printing the same file as a pdf, then sending the pdf to the printer results in the image printing normally. Moving the file to Photoshop and sending it to the printer also results in the image printing at the correct size.

Any ideas short of completely wiping the startup drive and reinstalling all of the software?