View Full Version : Konica Minolta C451 - wierd printing patten - partially faded out black prints
thendral
05-21-2015, 02:52 AM
Konica Minolta C451 partially faded out Black prints Color OK.
Not sure exactly what causes the issue. See the Pic. I printed full black page.
http://s13.postimg.org/v7we0jwwj/20150520_212019_resized.jpg (http://postimg.org/image/v7we0jwwj/)
Before I try just wanted to make sure: could it be Laser Unit or Imaging Unit? Any help is appreciated.
Thanks
Thendral
thendral
05-27-2015, 04:49 AM
I replaced the imaging unit, no luck. Will it be really the laser unit? if that is the case why I did not see the pattern on other colors? Any help is really appreciated. Thanks Thendral
lilleputte
05-27-2015, 08:50 AM
Hi.
Have you tried to clean the print head ? :cool:
/Lilleputte
DigiMan
05-27-2015, 09:16 AM
Seen this some time ago in some of these but after changing the drum unit it went away.
I remember these machine had an issue with the black drum unit spilling developer from their back
side,did you check that?
shamnad abdullah
05-27-2015, 03:46 PM
check the connections between MFB and laser unit
thendral
05-27-2015, 09:56 PM
I will check all of them tomorrow. Thanks a lot for all your suggestions.
thendral
06-04-2015, 06:40 PM
OK I was able to fix. Just to let everyone know - It is laser unit. There seems to be some toner / dirt in the pathway causing this weird pattern.
Once I clean it and put it back it prints good.
Thanks a lot to lilleputte, DigiMan & shamnad abdullah. Keep up the good work. Its a great help.
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