Review on 6 Pack SP-700 Black and Red Printer Ribbon Ink Cartridges - Compatible with Star SP-700BR, RC-700BR, SP-712, SP-742 POS Printer Ribbon by Troy Coskillas

I've been buying these from Revain for a few years but lately any new packaging that's opened is dry and unreadable when the ticket is printed because the ink isn't transferring to the printer's ribbon . So disappointing and frustrating because it slows down production at the restaurant I run. I've never had a problem, but in the past few months I've had four new tapes that didn't work.