Sierra and Gutenprint
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I've no idea when and how this software may have entered the iMac, but our current Epson printer still seems to be working okay. Is it necessary or advisable to remove Gutenprint (there's an uninstaller on the SourceForge website) or should I leave well enough alone?
And before Euan asks, no, I didn't do a clean install of Sierra - but I did make and test a bootable clone of the El Capitan installation before doing the update so hopefully I'll be let off with a caution.