HP-10 inside / refilling

[Sylvain Cote]

For my HP-10 & HP-19C calculators, I am using 38 mm by 50 feet roll thermal paper. (search for "38 mm X 50 Thermal Paper" on eBay)
This is the same paper used in the taxi cab meters and the normal price is a little less than $30.00 USD for a box of 100 rolls.
These rolls are too thick (1" 3/8) and need to be reduced to 1" 3/16. Either you remove the excess of paper or you create 2 rolls with one (what I do).

For my TopCat, 82143A, 82162A & 82240A/B, I am using thermal paper of 2-1/4 inches x 75 feet roll.
2-1/4 inches thermal paper roll can be easily found at Staples in multiple lengths (50', 75', 85', etc.) and packages (3, 10, 50, 100, etc.).

Sylvain