- Azure Cloud
How to Control Cloud Costs on Microsoft Azure
3 Mar, 2026

£16.42 inc. VAT
AI-generated summary
The Canon PFI-300CO “Chroma Optimiser” is one of those consumables that feels weird to justify until you’ve actually run prints where colours just don’t look consistent. In practice, it helps with calibration/quality consistency for Canon imagePROGRAF inkjet workflows, so if you’re producing repeat client jobs (maps, proofs, brand colour work, presentations) and you’ve noticed small shifts over time, this is the kind of cartridge that can smooth things out. At £13.66 ex‑VAT it’s not a budget-buster, and compared to reprints or customer dissatisfaction, it’s usually a sensible spend—especially for busy studios or signage/graphics teams that run their printers regularly.
That said, I wouldn’t buy it “just because” or for the wrong printer—these optimiser cartridges are very model/workflow-specific. If your printer isn’t the one that uses the PFI-300 series optimiser, you’ll be wasting money immediately. Also, if you’re only doing occasional prints, you may not see much day-to-day benefit before it’s time for the next replacement cycle. Bottom line: buy it if you’re using the compatible Canon large-format printer and you care about colour stability; skip it if you’re not on that exact system or your print volume is low enough that you don’t feel the consistency issue.

HP SUPPL A3
HP CLT-M808S - Magenta - original - toner cartridge (SS642A) - for MultiXpress SL-X400LX, SL-X401LX, SL-X4220RX, SL-X4250LX, SL-X4300LX

Xerox
Everyday - High Yield - yellow - compatible - toner cartridge (alternative for: Lexmark 70C0H40, Lexmark 70C2HY0) - Green World Alliance return programme - for Lexmark CS310dn, CS310n, CS410dn, CS410dtn, CS410n, CS510de, CS510dte

Epson
Epson Toner, Photo conductor, 1 x Magenta, S051225, 50,000 Pages

Xerox
Xerox - Cyan - compatible - toner cartridge (alternative for: HP 508A) - for HP Color LaserJet Enterprise MFP M577, LaserJet Enterprise Flow MFP M577