The 920's are cartridges of the fit, dimensions suitable for the printer with 364-er cartridges. You just have to chip the 364-er on the 920-er Cartridge "Switching" and has been running it (otherwise there is an error message) .....
And now the gigantic advantage of the action ... The 920-he is XL Cartridge black twice (!!!) as large as the 364-XL and as he said this fits into the printhead.
If you have asked yourself once why XL cartridge is so much space in the print head to the Black 364-er, here's the answer ... the head is & 920-he designed cartridge for 364-er. Just the recognition of the various chips is different.
Since printing is fun again ...