BCI-21Bk cartridge doesn't fit my printer BJC-2100
BCI-21Bk cartridge doesn't fit my printer BJC-2100, it has a different shape compared to his old cartridge BC20.
The old one you owned(BC20), consists of a print head and ink tank sealed in one unit.
We are also carrying this item,
However, the new one BCI-21 BK is only a ink tank, which should be put in one BJ Cartridge(BC-21e Color BJ Cartridge) as the following pic showed.