- Internet & Connectivity
Understanding Business Internet SLAs: What to Look For
18 Mar, 2026

£14.60 inc. VAT
AI-generated summary
If you’re paying **£12.14 ex‑VAT** for a **Canon CLI‑42Y** yellow cartridge, that’s generally a solid “keep the business printing” price—assuming you’re using a compatible Canon inkjet model that actually takes this cartridge. The real-world upside is reliability: Canon’s own ink tends to behave consistently on colour jobs (emails/quotes/brochures, signage, internal marketing bits), so you spend less time faffing with print-quality issues and more time just getting usable yellow output.
That said, I’d only buy it if you’re fairly sure you’re on the **right CLI‑42Y** for your specific printer and you don’t print huge volumes of yellow. For low-to-mid usage, OEM is often worth it; for heavy colour printing, branded cartridges can be a bit of a cash drain versus compatible alternatives (which can be fine, but quality and longevity vary). If your printing is sporadic, also consider your printer’s cleaning behaviour—clogging or frequent head cleans can turn “cheap ink” into an unexpected cost.

Canon
Canon 055 - Cyan - original - toner cartridge - for imageCLASS LBP664, MF745, i-SENSYS LBP663, LBP664, MF742, MF744, MF746, Satera LBP662

Xerox
Everyday - High Yield - black - compatible - box - toner cartridge (alternative for: Brother TN-248XLBK) - Green World Alliance return programme - for Brother DCP-L3515, L3520, L3555, L3560, HL-L3220, L3240, L8240, MFC-L3740, L3760, L8390

Brother Supplies
Brother TN3380 - Black - original - toner cartridge - for Brother DCP-8250DN, HL-5450DNT, HL-5470DWT, HL-6180DW, MFC-8520DN

Canon
Canon 046 H - High capacity - yellow - original - toner cartridge - for imageCLASS LBP654, MF731, MF733, MF735, i-SENSYS LBP653, LBP654, MF732, MF734, MF735