Just thought I would share this in case someone else ever has this problem. I had an issue where there was faint black streaks on the pages so I cleaned all coronas and charges, reput the coronas in the felt cleaners (they tend to slip out on canons) and cleaned the drum blade. Problem solved.
Well low and behold there were now four almost invisible faint little dots on a horizontal line on the page. There were two rows of them. Typical of me, fix one thing and create a new problem at the same time.
It probably would have been ok, but I'm a stickler for perfect quality prints. Eventually I pulled out the developer assembly and on the mag/charge roller I noticed two itty bitty bumps. I rubbed them with my finger nail and they came off like a scab.
Somehow toner got caked hard. Now the machine has no little faint spots.
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