Translate cassettelettertype from Dutch to English

– A font contained in a plug-in cartridge and used to add fonts to laser, ink-jet, or high-end dot-matrix printers. Cartridge fonts are distinguished both from internal fonts, which are contained in read-only memory (ROM) in the printer and are always available, and from downloadable (soft) fonts, which reside on disk and which can be sent to the printer as needed. ¹