Konica Minolta 8050 Instruction Manual page 340

3.
Unlock and open the toner bottle cover of the empty toner bottle.
4.
Partially withdraw the toner bottle, then turn it to set the "Up
arrow" mark at the top.
5.
Fully withdraw the toner bottle straightforward to remove the
bottle.
13-4
Adding Toner (continued)
2
1