Development - Ricoh B230 Service Manual

6.6.3 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).
SM 6-35 B230/B237/D042