PCU (Photo Conductor Unit)
SM 6-29 G133
Detailed
Descriptions
6.4.3 DEVELOPMENT
Development Operation
This machine uses a dual-component development system and has four development units
(which are included in the drum units), one for each color. Each contains 225 g of
developer when it is new. The developer in each unit is supplied to the development roller
[A] by the two mixing augers [B] and attracted onto the surface of its roller.
The TD sensor [C] in the development unit and four ID sensors above the ITB control toner
density. Each development unit has a TD sensor. The TD sensor contains an ID chip in
which some information about the development unit is stored.
The diameter of the development roller is 18 mm (circumference about 56.5 mm).
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