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Technology■>■Image■Formation■System■>■Controls■>■Toner■supply■assembly
Technology■>■Image■Formation■System■>■Controls■>■Toner■supply■assembly
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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.
DC controller(UN1)
Developing
supply count
ATR control
Toner container driver motor
CCW
Toner stirring plateA
Toner stirring plateB
Toner container
Piezo sensor
(TS1 TS4)
Toner feeding
screw
Hopper unit
Developing assembly
Toner supply
level sensor
(PS1
～
PS4)
M9~M12
CL2~CL5
M5~M8
Developing motor
Toner supply
clutch
Toner supply drive unit
•■ Toner■supply■control
Title
Description
Timing■to■supply
Operation■of■main■unit
Supply■to■
hopper
To■supply■developer■in■
the■toner■container■to■
the■hopper■unit
When■the■output■result■of■
piezo■sensors■(TS1■to■4)■is■
changed■from■H■to■L
The■toner■container■drive■motors■
(M9■to■12)■are■driven■for■2■
seconds■(*
1
)
Supply■to■
developing■
assembly■
To■supply■developer■in■
the■hopper■unit■to■the■
developing■assembly
Toner■supply■is■determined■
to■be■necessary■by■the■result■
of■ATR■control
The■developing■motors■(M5■to8)■
and■the■toner■supply■clutches■
(CL2■to■5)■are■driven■for■the■
specified■period.
*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.■Due■to■this■operation,■when■performing■continuous■printing■with■high■image■
ratio,■"Preparing■toner..."■may■be■displayed■on■the■UI■screen.■In■that■case,■wait■for■up■to■80■
seconds■until■the■machine■is■recovered.
F-2-109
T-2-42
•■ Toner■level■detection
Detection■description
Detection■timing
Detecting■to■
(location)■
Message■
(machine■
operation)■
Whether■Toner■
Container■can■
be■removed
Empty■toner■warning■1
(Level■of■toner■in■the■
Toner■Container■is■
approx.■10%.)*1
Prediction■from■the■
Developing■Assembly■
toner■supply■count■
(Judged■from■the■
number■of■supplying■
toner■to■the■Hopper■
Unit.)
Developing■
Assembly■
supply■count
*2
Please■prepare■
a■toner■container■
(continuous■print■
is■available)
Disabled
Empty■toner■warning■2
(Level■of■toner■in■the■
Hopper■Unit■is■approx.■
100%.)
When■the■sensor■output■
result■is■changed■from■
H■to■L
Piezo■sensor The■toner■
container■can■
be■replaced■
(continuous■print■
is■available)
Enabled
Empty■toner■(Level■of■
toner■in■the■Hopper■
Unit■is■approx.■0%.)
After■approx.■1000■
sheets■are■printed■
from■the■point■that■the■
Developing■Assembly■
toner■supply■count■is■
started■after■the■empty■
toner■warning■2■(in■
case■of■A4■and■dot■ratio■
at■5%■image■for■each■
color)
Developing■
Assembly■
supply■count
*2
Please■replace■a■
toner■container■
(the■main■
unit■stops■the■
operation)
Enabled
*1:■It■is■5%■for■Europe.
*2:■Developing■Assembly■supply■count■shows■the■level■of■toner■supplied■from■the■Hopper■Unit■
to■the■Developing■Assembly.
T-2-43