- Internet & Connectivity
How to Set Up Quality of Service for Business Applications
18 Mar, 2026




£16.55 inc. VAT
AI-generated summary
The Canon PFI‑5100 Cyan is a decent option **if you’re using a Canon large‑format printer that specifically takes this cartridge** and you want colour to stay consistent without faffing about. At **£13.66 ex‑VAT**, the price feels fair for an *original* consumable, and originals typically behave more predictably (fewer weird banding/mottling issues and more consistent output over time compared to cheaper equivalents).
That said, I wouldn’t buy it blindly. The biggest “why not” is compatibility—this is an ink cartridge for a particular printer line, and if you’re not sure, you’ll waste time (and possibly money) on the wrong part. Also, if you’re printing high volumes, it’s worth comparing your **total cost per printed job** (not just per cartridge), because occasional cheap cartridge deals can still lose out on throughput/coverage and change in print quality. If your priority is **reliable, repeatable colour for professional work**, this is a sensible buy; if you’re just doing basic drafts or low‑importance prints, you might not need original at all.

Brother Supplies
Brother TN421C - Cyan - original - toner cartridge - for Brother DCP-L8410CDW, DCP-L8410CDWT, HL-L8360CDWMT, MFC-L8690CDW

Brother Supplies
Brother WT800CL - Waste toner collector - for P/N: US#HLEX470W, US#HLL9430CDN, US#HLL9470CDN, US#MFCEX670W, US#MFCL9670CDN

Canon
Canon PGI-550 PGBKXL - 6431B001 - 1 x Black - High Yield - Ink tank - For PIXMA iP8750,iX6850,MG5550,MG5650,MG5655,MG6450,MG6650,MG7150,MG7550,MX725,MX925

Canon
Canon CLI-65 M - Magenta - original - ink tank - for PIXMA PRO-200
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