Toner Supply Area - Canon imageRUNNER 1750 Series Service Manual

2
Technical Explanation > Image Formation System > Controls > Toner Supply Area

■ Toner Supply Area

● Toner Supply Control
Route of Toner Supply
Toner Cartridge
TS2
M 5 M 2
[5] [4] [3]
DC Controller PCB
TS1 Hopper Toner Sensor
M2 Main Motor
M6 Hopper Motor
M5 Bottle Motor
[1] Hopper Toner Sensor detection signal
[2] Bottle Motor drive signal
[3] Main Motor drive signal
[4] Hopper Motor drive signal
2 Technical Explanation > Image Formation System > Controls > Toner Supply Area
TS1
Sub Hopper
Toner Feed Screw
Toner Feed Screw
Developing Assembly
M 6
[2] [1]
F-2-72
Title Description
Supply to the To supply developer When output result of Hopper
in the Toner Container Toner Sensor (TS1) changes from
Sub Hopper
into the Sub Hopper H to L.
Supply to the To supply developer The Developing Clutch is turned
from the Sub Hopper On and the Main Motor (M2) is
Developing
to the Developing driven.*1
Assembly
Assembly. When output result of Developing
Assembly Toner Sensor (TS2)
changes from H to L while the
above conditions are satisfied.
*1 The screw of Developing Assembly is driven by the Main Motor; therefore, supplying toner
while the Main Drive Motor is not driven causes toner leakage.
● Toner level detection
Detection description Detection timing
Toner-out alert (when the When output result of the
sensor changes from H to
number of printable sheets
L while there has been no
reaches 1000 (sheets)
change in value of the sensor
based on 6% of image
despite a supply operation for
ratio with A4 paper)
approx. 150 sec.
Toner-out (Level of toner in
When the Developing
Assembly Toner Sensor (TS2)
the Developing Assembly
detects toner-out and the
is approx. 0%.)
machine has printed 1000
sheets with 6% image ratio
with A4 paper.
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Operation of the host
Supply timing
machine
To drive the
Bottle Motor (M5)
intermittently (to rotate
for 3 sec and stop for 2
sec).
To drive the
Hopper Motor (M6)
intermittently (to rotate
for 1 sec and stop for 1
sec)
T-2-28
Message
Detecting to
(machine
(location)
operation)
Hopper Toner Supply toner.
Sensor
Developing count Supply toner.
by Developing
Assembly Toner
Sensor (TS2)
T-2-29
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