Sunny Doc,
You won't have any problems getting these supplys they are available a lots of stores here and common because of the business communitys needs.
Also close together in that the island is small and usually walking distances for these materials.
Tec-Transylvania carries printers, inks and get me anything I need in this department.
We're not quite the edge of the planet like we used to be.

White Sands Dive Shop
https://whitesandsdiveshop.com/