Originally Posted by
DAG COPIERS & COMPUTERS
I would agree with the poster about replacing the the M laser, BTW, only last week I had exactly the same issue of magenta fading gradually until it eventually disappeared altogether from the printed copies. The machine? Not a canon color copier, but a HP LJ 2600n. The solution was simple, no need to replace the M laser; Simply removed the laser unit from the machine, opened the top cover and thoroughly cleaned the optics especially the reflecting mirror for the magenta, and the imaging lenses with a lint free cotton swab; I also did blowing off the dust in the unit. I took sometime doing the work, very carefully though considering it is a precision part. I also cleaned the ITB.
I was surprised with the resultant excellent prints after re-assembling. Somehow dust (and moisture?) seem to have found its way into the laser unit. Talk of trying 'to do something' before considering a replacement laser.
Well, that was an HP printer, for a canon, the story could be different.
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