I have been working on a MP 5001 that continues to throw a SC350. Rebuilt the transfer belt because the pin was missing from the drive gear. New belt, blade, pin, and gear. Developer has 76,560 copies, drum, even fewer. Replaced ID sensor and had no issues for about a week and a half. I have been told that Ricoh recommends replacing developer when you install new ID sensor, but the developer here was not that worn. Should this be a concern? Thanks for any and all suggestions.
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