How to unlock toner cartridge in sharp copier Ar5618

SOURCE: Manual for Sharp AL 800 digital copier

hi im jules_09.you need a new toner cartridge for the copier when the toner light comes on it indicate the cartridge is empty.buy a new cartridge there is a instruction on the packaging that will guide you to install it your self

SOURCE: Sharp AL-1641CS printer/copier

Most likely you had a toner cartridge failuer leaving some of the ink and developer in the crevices above the paper feeder and its just trickling onto the paper.
It pretty much needs to have the cartrides taken out and thouroghly vaccumed.
Just takes patience and time to get it all removed.
Dont vacuum the cartridges, but the inside of the machine.
Pull your paper tray out and see if there is toner and developer trickling into it.

SOURCE: Sharp AL-1631 coper - toner problem

the problem in your machine is on the drum unit there is a arching on the mc unit.located in the upper portion of the drum unit.if you have an old drum unit try to install it again just for testing.and check if ther is a dumping toner again.

SOURCE: sharp copier ar-bc320 error code??

the DK message means it is time to replace the black drum unit. the drum unit is called an ARC26DU. open the front cover. remove the toner cartridge/s by lifting the green lever and pulling the toner out. Open the left side door. look at where you just pulled out the toner and there is one screw (facing you) holding each drum in place - loosen the screw and pull the drum unit out towards you....slide in the new drum unit.
to reset drum counter go into SIM mode by pressing the following keys one after the other "P" "*" "C" "*" then 24 and start/copy key then 7 then select the color drum you are replacing and confirm reset. make sure copier restarts afterwards

DO NOT refill these toner cartridges (even if you can find someone to do it) The toner cartridges for these machines have generally had ongoing problems as far as longevity and quality - refilling them will only make it worse.

SOURCE: SHARP AR-203 copier unusable after refill

Change the unit chip or reset him.