Canon PIXMA iP8720 Ink: CLI-251 XL Photo Cartridges | Castle Ink
Last Updated:The Canon PIXMA iP8720 wireless photo printer uses Canon CLI-251 and CLI-251 XL dye-based color ink cartridges with an additional PGI-250 pigment black. The iP8720 is a six-cartridge photo specialist (PGBK, BK, C, M, Y, Gray) that supports up to 13x19 prints.
Ink Cartridges at a Glance
| Cartridge | Color | Approx. Yield |
|---|---|---|
| PGI-250 | Pigment Black | ~300 pages |
| PGI-250 XL | Pigment Black | ~500 pages |
| CLI-251 | BK / C / M / Y / Gray | ~300 pages |
| CLI-251 XL | BK / C / M / Y / Gray | ~660 pages |
The PGI-250 / CLI-251 cartridge family is also used by the Canon PIXMA MG5420, MG5520, MG5620, MG6320, MG6420, MG6620, MG7120, MG7520, iP7220, iX6820, and MX722, MX922 series printers.
Save on PGI-250 / CLI-251 XL Ink
Castle Ink offers premium compatible PGI-250 and CLI-251 cartridges at up to 70% off Canon retail prices, with a full satisfaction warranty and free shipping on qualifying orders.
How to Replace Ink in the Canon PIXMA iP8720
- Power on the printer and open the top cover; the print head will move to center.
- Press the tab on the empty cartridge to release it and lift it out of the print head.
- Remove the new cartridge from packaging and pull off the orange protective cap.
- Insert the new cartridge into the matching color slot and push down until it clicks.
- Close the top cover and wait for the printer to initialize.
Troubleshooting Tips
Cartridge not recognized: Remove and reseat the cartridge; wipe the gold contacts with a dry lint-free cloth if needed.
Streaky or faded prints: Run Print Head Cleaning from the Canon iJ Printer Utility or the printer driver.
13x19 paper jams: Ensure the rear tray paper guides are aligned to the correct width and use Canon-recommended photo paper.
Low ink warnings: Compatible cartridges may trigger ink-level warnings; printing continues normally.
Official Canon Resources
Canon PIXMA iP8720 Support · Canon Genuine Ink
Bottom Line
The Canon PIXMA iP8720 uses PGI-250 pigment black and CLI-251 dye-based color cartridges including Gray for photo gradients. Castle Ink compatibles save up to 70% vs Canon OEM — shop PGI-250 / CLI-251 ink now.
Frequently Asked Questions
Q: How many cartridges does the iP8720 use? Six — one PGI-250 plus five CLI-251 (BK, C, M, Y, Gray).
Q: What does the Gray (CLI-251GY) cartridge do? It improves gradient smoothness and black-and-white photo quality.
Q: Can the iP8720 print 13x19? Yes — it supports up to Super B (13x19) borderless prints.
Q: Are Castle Ink compatibles safe? Yes, engineered to OEM specs with a satisfaction warranty.
Q: Does XL save money? Yes — XL roughly doubles standard yield for the best cost per page.
— William Elward, Castle Ink