Developer Unit - Samsung CLX-8640 series Service Manual

2. Product specifications and Description

2.6.2.3. Developer Unit

This machine uses a dual-component development system and has four Developer units. Each new unit contains 220g of
magnetic toner carrier. The developer in each unit is supplied to the magnetic(development) roller[A] by the two mixing
augers[B]. The diameter of the magnetic roller is 18 mm.
Each Developer unit has a TC(Toner Carrier) sensor[C]. They are used for controlling the operating range of toner density.
Drum Unit has the CRUM that stores the information for corresponding the Drum unit.
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