Detecting The Toner Level And Controlling The Toner Supply Mechanism - Canon imageRUNNER 7095 Service Manual

7.7.5 Detecting the Toner Level and Controlling the Toner Supply Mechanism

The following shows the components associated with the machine's toner supply control system:
Sub hopper toner sensor (TS4)
Purpose: to keep the toner inside the sub hopper to a specific level.
Operation: upon detection of the absence of toner, the machine rotates
the toner feedscrew inside the sub hopper to supply toner to the buffer.
Toner sensor TS1;inside the buffer
Purpose: To keep the toner inside the hopper to a specific level.
Operation: If the absence of toner is detected, the toner feeding screw
inside the sub hopper is rotated to supply the buffer with toner.
Developing assembly toner sensor TS3
Purpose: to keep the toner inside the developing assembly to a specific level.
Operation: upon detection of the absence of toner, the machine rotates the magnet
roller to supply toner to the developing assembly.
J511B
1
5V
15
TS-SNS
16
0V
17
J504B
5V
1
BUFFER_WARNING
2
0V
3
5V
4
BUFFER_NG
5
0V
6
5V
9
DEVELOP_TS
10
0V
11
15
F-7-30
When the absence of toner is detected, '0'.
F-7-31
Toner bottle
Buffer toner lower limit sensor TS2
Purpose: to detect the absence of toner inside the buffer.
Operation: upon detection of the absence of toner,
the machine stops the ongoing operation, and
Magnet roller
indicates a message to that effect.
TS4
TS1
Chapter 7
0010-8067
Sub hopper
7-23