Toner Supply (Toner Cartridge - Sub-Hopper) - Ricoh MP C2504 Field Service Manual

7. Detailed Descriptions
Toner Supply
Overview
No.
1 Toner bottle drive motor
2 Agitator
3 Sub-hopper
Toner is supplied by a Hi-Act (High Accuracy and Clean Toner) cartridge + sub-hopper.
Mechanism

Toner Supply (Toner Cartridge - Sub-hopper)

When the toner cartridge is set, the transport nozzle on the side of the unit is inserted into the bottle (Hi-
Act system).
When the toner supply motor drives and the piezoelectric sensor in the sub-hopper detects there is no
toner, the bottle drive motor rotates. The rotation of the bottle drive motor is transmitted to a transport coil
via a drive gear, and toner in the bottle is transported horizontally. Due to the coil transport, stable toner
supply/enhanced supply precision/reduction of residual toner are achieved.
1140
Description No. Description
4 Toner end sensor
5 Toner supply motor