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with all due respect, the scans provided are not what i use to diagnose cq.
only the 1 black gradation page is remotely helpful.
can you print the same original job in monochrome? if there is no fade then black is not the issue.
have you stopped the job at different intervals and looked at the belt and fuser?
need to see if its in development or transfer. this is all process of elimination.
could even be dirty/worn trans belt bushings/roller.
I had it set another transfer belt but same problem, I will try now wiht a fuser from another machine and see what is the outcome with that I will keep posting.
Ok, not drums,devs, laser. Few left like ITB and sensors. Did you cleaned ITB sensors front and rear? Any warnings or codes? Are they using compatible toners? With such old but good model many copy shops are running their business with non genuine toners.
all good quality toners from konica. I had clean sensors and changing transfer belt but same, no the machine gives me no error code.
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