Monroe M33X Premium Printing Calculator Ribbon Cartridges (Black, Red Ink)

With Monroe's M33X printing calculator ribbon cartridge you'll never have to worry about a messy installation process ever again! The NEW Monroe M33X Black/Red Ribbon Cartridge is the first-ever Monroe ribbon cartridge that can be used across an entire line of Monroe printing calculator models. This ribbon cartridge is compatible with all Monroe X Series printing calculators, featuring the highest standards in the calculator industry. Monroe's ribbon cartridges produce the darkest printing black/red ribbon cartridges on the market using our exclusive True Red color. True Red ink is the perfect red specifically made by Monroe, and doesn't have the orange tint you see in watered down versions from other brands.

Our ribbon cartridges have the highest possible inking degree, and are virtually smudge-free! To maintain the darkest print, we recommend users change their Monroe M33X ribbon cartridges after replacing 2 paper tape rolls. Those who know, choose Monroe. For use in the following
Monroecalculators: Monroe UltimateX; Monroe 8145X; Monroe 8130X; Monroe 6120X; Monroe 2020PlusX; Monroe 122PDX
PleaseNote: The Monroe M33X Black/Red Ribbon Cartridge is NOT compatible with any Monroe printing calculator model outside of the X Series.