For those who have problems with cleaning the ink on the nib I got great news!
You can did the pen in water(but remember to take out cartridge/converter and cap and barrel) so you can get the ink mixed with the cup of water that you are dipping it in.
Check out this link for more
https://calligraphypen.wordpress.com/.../care-and-feeding-of-the-calligraphy-dip-pen/