I have a MB 2300 printer and it prints fine for 3/4-1 inch and then fades for the next 3/4 to 1 inch.
I have cleaned the print heads many times including deep cleaning.
I have cleaned the roller and the pan/tray with the options on the printer.
This was happening on the older cartridges and I just put in all new.
It seems to be only the black.
Any help would be appreciated.