Canon S100SP Ink Cartridges
Your Canon S100SP uses the BCI-21 ink cartridge series, operating with a dual-cartridge system split between black and tri-colour tanks. As demonstrated by our 4.8 Google rating, we are committed to providing premium consumable cartridges. Ink Depot has been supplying consumables for this printer since Aug 2026. Designed for light domestic text and school projects, routine document work depletes the BCI-21 Black cartridge far quicker than the BCI-21 Colour tank.
Expected page output and replacement cycles
Page yields for BCI-21 ink cartridges are measured under ISO/IEC standard testing conditions for inkjet printers. Real-world page output varies according to page coverage, text density, and print frequency. Routine black text printing depletes ink differently than graphics or photo output.
Choosing compatible cartridges
Our compatible BCI-21 ink tanks offer reliable performance at a fraction of original cartridge costs. Under Australian Consumer Law, using compatible cartridges does not void your printer warranty. Read our detailed guide comparing genuine vs compatible cartridges to learn more about performance and quality standards.
Best way to stock these cartridges
If you primarily produce text documents, stocking multiple BCI-21 Black cartridges or selecting multi-packs prevents running out mid-job. For mixed colour documents, replacing BCI-21 Colour tanks as needed ensures steady colour output. All our compatible cartridges are backed by a money-back guarantee under our simple returns policy. Order your Canon ink cartridges today with confidence. Free delivery applies on all orders over $99, dispatched quickly from our warehouses in Perth, Brisbane, Sydney, Melbourne and Adelaide.
Pro Tip
Because the BCI-21 Colour tank combines cyan, magenta, and yellow into a single unit, replacing it when any single shade runs out guarantees accurate colour balance across all your printed pages.
Frequently Asked Questions
Can I print black text if the BCI-21 Colour cartridge is completely empty?
The Canon S100SP requires both cartridges to be physically present in the carrier to operate. While you can select monochrome or grayscale settings in your print driver to route text solely through the BCI-21 Black cartridge, the colour tank must remain installed.
Why does the BCI-21 Colour cartridge run low even if I mostly print text?
Standard inkjet initialisation and periodic printhead priming cycles draw tiny amounts of ink from both BCI-21 Black and BCI-21 Colour cartridges to keep nozzles clear and maintain print performance.
How long can unopened BCI-21 compatible cartridges be stored before use?
Unopened BCI-21 cartridges sealed in their original vacuum packaging have a shelf life of up to 24 months. Store them upright in a cool, dry place away from direct sunlight to maintain ink viscosity.
