BIGGER Compatible Calculator Ink Ribbon Replacement for IR-40T CP13 MP-12D PR42 Used with Casio HR-100TM HR-150TM HR-170RC, Sharp EL-1750V EL-1801V, Individually Sealed, Black/Red, 10 Pack

I ordered this for a Sharp-1750EL, but before ordering, I checked reviews of products from various companies, starting with the one and two star reviews. These were not encouraging. Common complaints included didn’t fit, poor print quality, and only half of the installed ribbons actually worked. This is why I ordered a 10 pack: to save myself potential wasted time and aggravation. I figured at least one of them should work. Well, the one I installed in the Sharp calculator went in easily and print quality is excellent. Then it turns out a family member had a Casio HR-170RC with a fading ribbon, which these serendipitously also fit. Again, installation was easy, and print quality is excellent. Two out of two! 100%! I still have eight of these that I won’t be using anytime soon. But I’m pretty happy with these, especially because of my low expectations. Furthermore I think the odds are good that most of the others, maybe all, well work as well as the first two.

Received this 10 pack calculator ink last week. Nice to have ink replacements for those of us who still use calculators with paper feed vs buying new ones. I just installed one while writing this review as they come individually packaged. Easy to replace old ink and fits my Casio. Reason for 3 star review, ran some numbers to test ink. The black is faint. The red, which is actually more pink, the readability is great! Was hoping to give 5 star review which I will if they make the black darker and readable.

I literally destroyed 3 ribbons trying to install one.. The ribbon fell out of the ribbon holder. The instructions for many items are so small I can't see them so I have to use the trial method. The ribbons don't seem to last very long or maybe I just used them longer than I should. I am pleased with the service and once I determined how to install the ribbons, I was fine.

These work just fine

Purchased for my trusty old Sharp EL-1701V - fit perfectly. At first it looked like I received only black ink, but the red is so dark, it actually looks black :) Swapped out the old for the new inside of 15 seconds. Been working great. Will see how long each lasts. Love the fact that these are packaged individually and expect that they'll stay moist for a long time. Very satisfied with this purchase.