When the printer does not recognise the cartridge, there are several possible causes. The first is that the cartridge may not be compatible with your printer model. Check your user manual or contact customer service for specific compatibility information. Another possible reason is that the cartridges may have become defective after prolonged use, and the printer may not recognise the cartridge correctly when it tries to read it. In this case, try replacing the cartridge with a new one and repeating the process. A third possible cause is that the cartridges can become clogged due to the build-up of debris over time. Check the cartridge itself for visible blockages and remove them if necessary. With the right information and troubleshooting steps, you can usually get the printer to recognise the cartridge.
In some cases, the printer may need to be reset after a new cartridge is inserted. This can be done by switching the printer off and unplugging it from the power supply for at least 30 seconds before switching it back on. After switching the printer back on, try a test print to see if the cartridge has been recognised. If the cartridge is still not recognised, repeat any of the above troubleshooting steps to resolve the problem.
A working cartridge is essential for quality printing, so it's important to fix any problems as soon as possible. With a little effort and knowledge, you can get your printer running smoothly again with a recognised cartridge.