HOW TO DARKEN COPIES FOR KM 4030/35
The Falcon I & II have a small pot on the drum unit at the rear on top, to increase the black fill, turn the pot counterclockwise this will give you better fill.
The sim code for the MC adjustment is 100 and you would decrease the number.
Try sim code 130 to churn up the developer
you could also empty or change the developer unit and load new one then run sim code 130 again.
set text and photo mode to text
clean laser unit
clean the transfer roller or just change it…