How to change a CASIO HR-100TM ink ribbon

2/11/22 update: I was able to buy the ink piece on Amazon.
Package of Two Casio HR-100TM and HR-150TM Calculator Ink Roller, Black and Red, Compatible https://smile.amazon.com/dp/B00DEQEKQ...


Changing out the ink ribbon.  Replacement part was bought at Staples. 11/8/17.  Part #11204 Porelon PR42 ink roll for use in Canon, Casio, Total and Sharp calculator.