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11-06-2012, 04:03 PM
Hi guys
I bought a used Konica Minolta Bizhub C451, while prinitng black/colour the black printer skips a complete line form the top and some time a small line from the bottom the colour it prints all fine

konica minolta technician was called in, he said your issue is due to black imaging unit so i got it from another machine and replaced it but it is still the same NO DIFFERENCE at all

sample image is attached
white line can be seen on the top

please advice?

11-06-2012, 05:34 PM
- Clean the BK Laserglas (Developer throw out)
- Put the BK IU back to the other Machine
- Buy for this Unit a new BK IU.

11-06-2012, 06:42 PM
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11-08-2012, 09:46 AM
Thank you Dallas,

i called in a NON Konica Minolta technician and he did exectly what you said, just cleaned the glasss under neeth the black IU and it works like a charm now :)

your help is really appriciated


11-08-2012, 05:55 PM
The technician from KM said what Dallas said but just in reverse order :) His goal was to sell you a new k unit and afterward to fix your machine even if these two operations aren't related as it looks at first glance.

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