SHARP COPIER AR-5618S....TONER EMPTY. IT REFILLED. BUT EMPTY SIGNAL ALSO NOW.PLS SAY ITS RESET CODE

SOURCE: Sharp Copier Service Code

You had 5 jams in the fuser the hotarea on the left side of your machine.

SOURCE: Sharp AR-5127 H2-00 code reset

Sharp Fuser
H2-0 Fusing unit temperature error
H4-0 The fusing unit doesn't heat up.
***ALWAYS DISCONNECT POWER WHEN WORKING ON MACHINE***
You have to reset fuser errors with simulation 14. Push P * C * then 14 then Start (the button you use to make copies) and it should reset the code. If not then replace the fuser.
SM 5-1 should turn the lamp on. If lamp blinks on and off it is the thermistor, if it does not it is the lamp, but check the contacts on the lamp/fuser -- they have been known to erode.
Also check thermal fuse, if defective replace.

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.