- Azure Cloud
How to Monitor Azure Performance and Costs
10 Jul, 2025




£116.11 inc. VAT
AI-generated summary
The Epson T603900 “Light Black” in the single-pack is the kind of consumable that only makes sense if you already know you *need* light black for your workflow. In practice, it’s for customers printing where smoother gradients and better shadow detail matter—think posters, fine art-style output, or any large-format work where banding in dark-to-mid tones is the enemy. If your printer and RIP are set up to use that light black channel, this cartridge will help maintain print quality without you having to compromise on colour smoothness.
I’d be cautious if you’re buying it as a general “black ink replacement.” Mixing the wrong black types or running cartridges that aren’t actually expected by your printer/RIP can lead to annoying colour shifts and reprints, which is the quickest way to make a £96.61 ex-VAT ink spend feel irrational. Also, single packs are typically less efficient than buying in a way that matches your actual consumption—so if you don’t have a predictable print volume, you might end up paying for stock rather than productivity.
**Who should buy:** established users of Epson large-format systems that explicitly use light black for quality-critical gradients. **Who shouldn’t:** anyone guessing at ink compatibility, or anyone printing mainly for fast/rough output where midtone smoothness isn’t a priority.

Epson
Epson Ink Cartridges, Ultrachrome K3 Vivid Magenta, T636300, Singlepack, 1 x 700.0 ml Vivid Magenta

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

Epson
Epson Ink Cartridges, T606C00, Singlepack, 1 x 220.0 ml Light Magenta

Epson
Epson T56F1 - 1.6 L - photo black - original - ink pouch