If you own a Canon inkjet printer and you're running low on black ink, you might be wondering whether you need a PG-243 cartridge and what it's actually for. Understanding the correct ink cartridge for your specific printer model can save you both time and money, and ensures your prints come out exactly as intended.

Canon PG-243: What It Is and Which Printers Use It

The Canon PG-243 is a genuine black ink cartridge designed specifically for use in certain Canon inkjet printers. The model number PG-243 refers to the black ink variant, while a companion color cartridge, the CL-244, handles color printing. Canon makes these cartridges using precise specifications matched to how their printers' internal systems work.

The Canon PG-243 is compatible with a substantial range of Canon printers. If you own an iP2820, MX492, or any of the MG-series printers including the MG2420, MG2520, MG2920, MG2922, MG2924, MG3020, or MG2525, you'll use the PG-243 for black ink. It also works with the TS-series printers such as the TS3120, TS302, TS302a, TS202, TS4520, and TS3320. Before ordering, check your printer's model number, which is usually printed on the front or back of the device, and verify it appears in this list.

Understanding Page Yield and Replacement Frequency

A key practical detail about the Canon PG-243 is its yield. This particular cartridge is rated to produce up to 100 pages of black text printing under standard conditions. This doesn't mean you'll always get exactly 100 pages—actual mileage depends on how much coverage each page requires. A document with heavy black text will consume ink faster than one with sparse text and large white areas. Photographs and graphics-heavy documents also use more ink than simple text.

In typical home or office use, you might replace a black cartridge every few months or even quarterly, depending on your printing volume. Some people go through one every month if they're regularly printing documents, while others might keep one cartridge for six months or longer. Monitoring your printer's ink level indicator, which most Canon models display on the device itself, helps you anticipate when you'll need a replacement rather than running out unexpectedly.

Genuine Canon Ink Versus Alternatives

Canon makes both genuine cartridges and lower-cost compatible alternatives exist in the market. The genuine Canon PG-243 is developed specifically for Canon's print head design and ink chemistry. It uses Canon's FINE technology, which refers to the full-photolithography inkjet nozzle engineering inside the print heads. This technology relies on thousands of tiny nozzles that work together to produce sharp text and accurate colors.

Genuine Canon ink is formulated to work predictably with these nozzles and can affect print quality, reliability, and how long your printer lasts. Many people choose genuine cartridges because the results are consistent and the risk of printer damage is minimized. If cost is your main concern, understand that third-party cartridges vary widely in quality, and some may have higher failure rates or produce inferior output.

Storing and Using Your Canon PG-243 Cartridge

When you have a Canon PG-243 cartridge at home, store it in its original packaging in a cool, dry place. Extreme temperatures, humidity, and direct sunlight can affect ink performance. Keep the protective tape on the cartridge until you're ready to install it. Once installed, your printer will use the cartridge continuously, so there's no benefit to removing it between jobs.

When your printer warns you that black ink is low or empty, install your replacement Canon PG-243 according to your printer's manual. Most Canon models make this straightforward—you open the cartridge compartment, press the empty cartridge to release it, and slide the new one in until it clicks. Allow a moment for the printer to recognize the new cartridge before printing.

Understanding what the Canon PG-243 is, which printers need it, and how often you'll replace it makes managing printer supplies much simpler and helps you maintain consistent print quality over time.

The product in this guide: Canon PG-243 Genuine Black Ink Cartridge, Compatible with iP2820, MX492, MG2420/2520/2920/2922/2924/3020/2525, TS3120/302/302a/202/4520/3320