Canon imageRUNNER ADVANCE C5500 Series Service Manual page 122

Main Controller PCB
Video Count Value
UN1
DC Controller PCB
Developing Assembly
supply count
ATR Sensor result
Control timing:
When toner supply is determined necessary by the result of ATR control, toner is supplied.
Operation of the host machine:
In this machine, Toner Bottle Motors are arranged for each color to perform toner supply.
The Bottle Motor (Y/M/C/K) (M9/M10/M11/M12) is driven to supply the toner with the amount as determined based on the
Toner Density Sensor (TS5/6/7/8) and video count output value.
In order to ensure that the bottle rotation speed does not vary greatly as the amount of toner inside the bottle is being reduced,
the bottle rotation is controlled by using the Bottle Rotation Sensor (Y/M/C/K) (PS60/61/62/63) and the Bottle Position Sensor
(Y/M/C/K) (PS64/65/66/67).
Control description:
When toner is supplied, the Toner Supply Level Sensor (Y/M/C/Bk) (PS1/PS2/PS3/PS4) is started while it is turned ON.
Driving the Bottle Motor (Y/M/C/K) (M9/10/11/12) rotates the Toner Bottle, causing the flag of the Toner Supply Sensor to
drop to the cut-off part of the Toner Bottle as shown in the figure below, which in turn switches OFF the sensor. When the
flag then moves away from the cut-off part of the Toner Supply Sensor, the sensor is switched ON.
When the Toner Supply Sensor is OFF, toner for one time is supplied to the Developing Assembly.
Expansion
M9, 10, 11, 12
TS1
TS2
TS3
TS4
CL2, 3, 4, 5
M5, 6, 7, 8
Small toner supply mouth
PS64, 65, 66, 67
Shrunk
108
Contraction
TS5, 6, 7, 8
2. Technology