Toner Supply Control/Toner Level Detection - Canon imageRUNNER ADVANCE C5045 Series Service Manual

2
MEMO:
Following shows detection result of toner cap position sensor and the operational
relationship with the main unit.
State of toner cap Toner cap position sensor 1
Released OFF
In motion(released → sealed)
OFF
Sealed ON
In motion(sealed → released)
ON

Toner supply control/toner level detection

Supplies the toner in the Toner Container to the Developing Assembly. At the same time, it
detects the toner level inside the Hopper Unit.
Toner container driver motor
M9~M12
CCW
DC controller(UN1)
Piezo sensor
(TS1 TS4)
Developing
supply count
Toner stirring plateB
Toner supply
level sensor
(PS1～PS4)
ATR control
Toner feeding
screw
2
Toner cap position sensor 2
ON
OFF
ON
OFF
Toner supply drive unit
Toner container
Toner stirring plateA
Toner supply
Hopper unit
clutch Developing motor
CL2~CL5 M5~M8
Developing assembly
•
Toner supply control
Title Description
Supply to To supply developer in
hopper the toner container to
the hopper unit
Supply to To supply developer in
developing the hopper unit to the
assembly developing assembly
T-2-37 T-2-37
*1: If the output result of piezo sensors TS1 to 4 keeps L despite drive of M9 to 12, make M9
to 12 driven for 2 seconds and then stopped for 2 seconds and repeat this procedure up to
20 times.
•
Toner level detection
Detection description
Out of toner warning
Expected from the Developing
(approx. 10% until
Assembly toner supply count
(judged from the number of
toner is out)
times of toner supply to the
Hopper Unit)
Out of toner warning
When the output result of
(approx. 5% until toner sensors is changed from H to L
is out)
Out of toner warning
Assembly Toner Supply count
(approx. 0% until toner is started from no toner warning
2, when a total of approx. 1000
is out)
sheets is printed. (In case of
image on A4, dot ratio of each
color is 5%)
*1: Developing Assembly toner supply count indicates the toner amount that is supplied from
the Hopper Unit to the Developing Assembly.
F-2-113 F-2-113
Timing to supply Operation of main unit
When the output result of The toner container drive motors
piezo sensors (TS1 to 4) is (M9 to 12) are driven for 2
changed from H to L seconds (*
Toner supply is determined The developing motors (M5 to8)
to be necessary by the result and the toner supply clutches
(CL2 to 5) are driven for the
of ATR control
specified period.
Detection
Detection timing
source (operation of main unit)
Developing Please prepare a toner
Assembly toner container (continuous
supply count (*
1
) print is available)
Piezo sensor The toner container can
be replaced (continuous
print is available)
Developing Please replace a toner
Assembly toner container (the main unit
supply count (*
1
) stops the operation)
2-70
1
)
T-2-38 T-2-38
Message
T-2-39 T-2-39
2-70