Originally Posted by
jpcopy
on the 350/450, what dev bushing are you refering to? I can't find in service hand book. I am having problem with dev units with more than 300k now. I get background on first side thru. about a third of the page on the front side as exiting on the left. it appears the mag roller is out of round so to speak. background darken at a high spot. problem follows the dev unit when going to another machine. doesn't do it on second past thru when duplexing. does much worse with 11X17. It's like the dev unit is loosing bias on operator side. I'd say the unit with 3 to 500k do alright with using letter only but some of them will back ground on long runs. I have tried dev units with under 300k and they are not having this problem even on 11 X 17. this is the reason I asked.
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