- Cyber Security
DNS Security: Protecting Your Business at the Network Level
19 Feb, 2026

£85.78 inc. VAT
AI-generated summary
If you’re running an Epson large-format setup and you actually burn through light black routinely, this T6427 (150ml) is a decent “stay-stocked” kind of cartridge. The real-world win is consistency: light black inks help with smoother neutrals and softer gradations, so your output looks less banded than you’d get by leaning on straight black. £71.34 ex-VAT isn’t cheap, but for production work where downtime and print quality matter, it can be reasonable—especially if you’re already tuned for the way your printer uses light black.
That said, I wouldn’t buy this on a whim. If you print mostly bold graphics, signage, or anything where neutrals aren’t critical, light black can be wasted cost because your usage may be low. Also, if you’re only replacing occasionally, ink spend adds up fast and you might be better managing volumes (or running a test/estimate) before committing. Bottom line: best for print shops doing photo/colour-critical work on Epson large-format, less sensible for general “occasional poster” type printing where ink consumption is sporadic.

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Epson Ink Cartridges, Ultrachrome K3 Vivid Magenta, T6421, Singlepack, 1 x 150.0 ml Photo Black

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