View Full Version : Biz 601 & Di 5510 developer units?

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01-05-2015, 03:37 AM
Has anyone ever used a Di5510 dev unit in a Biz 601? They have different part # but sure look the same. Only thing I could see different is one of the gears is different color and there is blue on the handles you pick it up by.


01-05-2015, 05:30 AM
The smallest gear on the 5510 was prone to strip out. That is why they are different, they changed to a stronger design. They should work. I have used 650 boxes in 601s and 650's are the same as 5510's.

01-05-2015, 02:22 PM
Thanks fixthecopier,

That's what I thought. I will try it.

The reason the small gear teeth get chewed up is because the developer "shaft holder" (bushing/seal) leak developer. You have to replace the seal & gear at the same time otherwise will be back replacing that gear in a few months. You don't want to replace that small gear, especially when it cost $56 ! There is no way in hell K/M can justify charging $56 for a gear that is smaller than a dime, even if it has a small bearing inside!

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