for reset the pm counter you can use 08-252 you can put zero in there. For reset the drum counter, fuser, and wire you use 6-start than choose 2 for drum, 3 for wire and 4 for fuser.
6+Start is PM support mode. the easy way to reset drum/wire/fuser. Beside that you can reset in 08 mode.
Just easy way put the code (2/3/4) than control panel will appear initialize and cancel for confirmation. just push initialize for resetting.