Sharp SF-7200 Service Manual page 32

(3) Corona output adjustment procedures;
a. Main corona current adjustment
@ Remove the drum holder unit, developing unit, main
corona unit, and the transfer/separation corona unit.
@) Remove the drum cleaner blade from the drum holder
unit.
(8) Install the DCD test sheet on the drum. Attach with
rubber bands.
() Replace the drum back in the drum unit holder.
Remove
DCD test sheet lead
Drum holder unit
SF-7200
(®) Route the DCD test leads through the developing unit
cavity.
DCD test sheet