FileMaker Pro 16.0.5 or 15.0.4
macOS 10.13.4 or OS X 10.11 El Capitan
Brend new and older iMacs
Konica Minolta C224 bizhub printer
Driver version 5.4.0 from 2016-10-20 installed (last available to date)
Several presets saved
Under multiple configurations, after some printings with Konica Minolta C224 printer, FileMaker become more unresponsive after each printing, with a CPU usage approaching 90% doing nothing.
How to replicate
When the configuration above is met, the issue can be replicated by just activating the print command, and print or even Cancel and repeat this 5-10 times.
NOTE : i was able to replicate the issue on a brand new file with one table/field/layout, when only this file was opened during the session.
Quit and reopen FileMaker PRO.
A sampling the filemaker Process when the problem occured.
I found also several very old related posts :