- Virtual CIO
IT Vendor Management: How to Get the Best Deals
11 Mar, 2026

£319.96 inc. VAT
AI-generated summary
Epson’s Singlepack Light Black T591700 is the kind of consumable you buy when your large-format workflow really depends on consistent greyscale and you don’t want to baby your printer. If you’re running an Epson large format system that uses this ink, it’s a sensible, low-drama replacement: colour stability is typically better than “mix-and-match” approaches, and you avoid the usual risk of banding or dull blacks that come from mismatched cartridges/ink systems. At £266.11 ex-VAT it’s not cheap, but for B2B print work the real question is downtime and reprints—this ink tends to protect your output quality when you need it most.
That said, I wouldn’t buy it “just because” if you don’t actually need Light Black soon. Singlepacks are only good value when you’re confident it’ll be used before it becomes effectively dead stock, and if you’re printing lots of full-colour work, you may find you burn through other inks faster than this one. Bottom line: it’s a good fit for print shops producing lots of monochrome/greyscale or photo-style work where neutrality matters, and less convincing for general-purpose colour-heavy jobs or smaller operations that hate holding consumables.

Epson
Epson T53F2 - 1.6 L - cyan - original - ink pouch - for SureColor SC-P8500DL STD

Canon
Canon PFI-050C - 70 ml - cyan - original - ink tank - for imagePROGRAF TC-20, TC-20M, TC-21, TC-21M

Epson
Epson Ink Cartridges, T580B00, Singlepack, 1 x 80.0 ml Vivid Light Magenta

Epson
Epson Ink Cartridges, T580700, Singlepack, 1 x 80.0 ml Light Black