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Do you have any code to reduce the ink of this one?

Redo all the ink and developer unit.

Clean the mirror, laser cluster

Are you using non-genuine ink?

If the word file is highlighted, it will be black

Only the PDF file is black, is the word excel file black?

I adjusted the resolution but it only got better, not completely gone

You adjust the resolution in the print driver or install the printer according to the correct driver of the machine

Can I ask, Konica bizhub 450i, every time I print pdf or any highlighted line, it gets like this. Does anyone know how to tell me and I...

So you have to contact the big guys who specialize in Sharp products to borrow to test, because this product is rare and the price is a...

I've cleaned it all. It's a little clearer

Remove the drum unit to clean it, clean the high voltage drum, the high voltage next to the black charging shaft...

Is this power source expensive?

If cleaning the high pressure doesn't fix this error, replace the components, replace the drum unit... This error is usually due to high...

I have a Sharp AR-M460N photocopier with black printout as shown in the photo. After cleaning the drum unit, it was white, but after a...