Toner Container Detection; Atr (Auto Toner Replenishment) Control - Canon imageRUNNER ADVANCE C3325 Series Service Manual

2
Technical Explanation > Image Formation System > Controls > Toner Supply Area
● Toner Container Detection
Presence/absence of the Toner Container is detected.
The Toner Supply Sensor (Y/M/C/Bk) (PS26/PS27/PS28/PS29) is arranged as shown in the
figure below; when the Toner Container is inserted, the sensor reacts and the Toner Container
is detected.
< ON >
Toner Supply Sensor
● ATR (Auto Toner Replenishment) Control
Purpose: To supply toner to the Developing Unit to achieve an ideal ratio of the developer
(toner + carrier) in the Developing Unit.
Control timing Adjustment timing
Automatic adjustment At job completion
by the accumulation of At paper interval
video count values
At initial installation Power on
Control description:
The toner density of each color is corrected to the target value at the abovementioned
control timing and is controlled to achieve an appropriate toner supply to the Developing
Unit. The DC Controller PCB determines toner supply amount by the following 2 data:
• Toner Density Sensor output value (DC Controller)
• Video count value (Main Controller)
The DC Controller PCB turns ON the Bottle Motors (YM)/(CK) (M04/05) when it determines
that toner supply is necessary.
This supplies the specified amount of toner to the Developing Unit.
2 Technical Explanation > Image Formation System > Controls > Toner Supply Area
Flag
Toner Container
Cut-off
F-2-66
Conditions
For each accumulated video count value of 1500%
For each accumulated video count value of 3000%
At initial installation
Toner Log Connector
UN39,40,41,42
[1]
Hopper Unit
Developing Motor
M10
UN04
DC Controller PCB
Developing Assembly supply count
ATR Sensor result
Related Error Code:
T-2-36
E020-01A8/01B8 : ATR Sensor (Y) output error
E020-02A8/02B8 : ATR Sensor (M) output error
E020-03A8/03B8 : ATR Sensor (C) output error
E020-04A8/04B8 : ATR Sensor (Bk) output error
E020-01C8 : Error in take-up of Sealing Member (Y)
E020-02C8 : Error in take-up of Sealing Member (M)
E020-03C8 : Error in take-up of Sealing Member (C)
E020-04C8 : Error in take-up of Sealing Member (Bk)
Toner Supply Sensor
PS26,27,28,29
M04
M05
Bottle Motor(YM)
Bottle Motor(CK)
ATR Sensor
UN21,22,23,24
UN05
Main Controller PCB
Video Count Value
2-51
F-2-67
2-51