The Standard Print Cartridge and the Conversion CRU Look Different. The Function of Each Item is Different

The Standard Print Cartridge has a green roller as pictured below:

The Conversion CRU is pictured below:

NOTE: The Conversion CRU is only used to convert the printer from using a Sold Print Cartridge to a Metered Print Cartridge. The CRU does not have any ability to be used as an actual Print Cartridge, even though the CRU looks like a Print Cartridge.