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 mx-2300N printer error maintenance required
VK means black developer has reached end of life. You can safly carry on using the copier with this message displayed but over time the copy quality may slowly degrade. You will need to call a Sharp authorized dealer to replace the developer in the developer unit.
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