Panasonic FP-D350, Руководство пользователя

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2-17
Sub
Assemblies
2) Supplying toner
The Toner Hopper Unit supplies toner to the Developer Mixing Unit via the
Reserve Tank. Toner addition is done in two stages, by turning the Toner Hopper
Motor in:
Forward Direction:
The bottle turns (via a spring clutch) to supply toner from the Toner Bottle to
the Reserve Tank. This direction is controlled by the Toner Volume Sensor.
Reverse Direction:
The Toner Supply Roller turns (via a spring clutch) to supply toner from the
Reserve Tank to the Developer Mixing Unit. This direction is controlled by the
TDC Sensor.
• Toner supplied by the toner supply roller varies from 0.4 to 1.2 grams of toner
depending toner density.
• When the developer mixing unit is separated from the toner supply unit of the
toner hopper, the toner supply shutter is closed to prevent accidental toner
dropping.
TDC sensor output Toner volume Hopper Toner Toner supply Add toner
sensor motor bottle roller
High (Lower toner density) Detect Reverse rotation — Rotate Supply toner to developer unit
High Non detect Forward rotation Rotate — Supply toner to sub-hopper
Low (Higher toner density) Detect Stop — — —
Low Not detect Stop — — —