How does one clean the corona units or the drum blade?
Gregory, First remove the drum unit. Then remove the Charge unit. located about the drum on the drum cartridge (Not Inside the Machine) Then remove scortron grid push the front in to release you then have access to the charge wire this model may have the Charge comb type be care the combs are sharp if they are wires be gentle and use a eraser to gentle clean the wires they are very thin. During the copy process the wire/comb applies a HV charge on the drum prior to the image from the mirrors being place on the drum before the paper arrives underneath the drum.
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SOURCE: error c2557 konica minolta 250/NEC IT2530
Reset it, start it with the right door open, go to service mode, clear the counters for drum and developer and go to functions menu. Close the right door and start immediately the F8 function. It should work.
SOURCE: Konica/Minolta biz 350 C2557 after replacing DV unit and drum F8
tha minolta di3510 developer unit looks the same as the unit for the konica minolta bizhub 350 but the toner sensor in the minolta unit uses a different voltage range for the toner sensor and it will throw this code make sure you have the correct unit for this machine also you can try this
go back into tech rep mode and change these settings:
select tech rep choice mode
select printer tab
select atdc sensor gain
set the value to about 165
then back all the way out to the ready screen and power the machine off then back on and replenish toner in the user management screen.
Manousos Xatzidakis:
I would take another look at the drum cleaning blade as well as the CEL and PTL. Any time I've had problems with double images, the drum carriage and parts associated to it have been the problem. I remember one notable case where I removed and shrouded the drum to protect it from light, cleaned both the charge corona and the discharge corona, cleaned the PCL and the PTL of toner dust, vacuumed the drum carriage of toner dust, cleaned the developer unit and replaced the developer. I finally got clear copies and the customer was satisfied.
SOURCE: i want to change the setting of my drum unit on a konica minolta C-360
Enter in the service mode by press following keys:
Utility - Meter count-Check details - Stop - 0 - 0- Stop - 0 - 1 - Stop -0 -C - setting IU life stop setting and select NO STOP.
SOURCE: Toner is not fusing to paper right after changing drum.
Verify the fuser ubit components ,mechanical part,the pressure roller lever in close position and the transfer corona position.
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