Kyocera KM-4230 Service Manual page 48

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(4) Developing section
The developing section consists of the developing unit and the toner recycling
assembly.
Developing unit
Toner sub hopper
Figure 1-3-23 Developing section
The developing unit consists of the developing roller where a magnetic brush is formed,
the doctor blade and the developing spirals that agitate the developer.
The toner recycling assembly consists of the toner main and sub-hoppers. In t he main
hopper new toner from the toner cartridge is mixed with residual toner recovered from
the cleaning section. The mixture is conveyed by the sub-hopper to the developing unit.
The toner level detection sensor (TLDS) checks whether or not toner remains in the
main hopper.
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