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Process/Operation > Image Formation System > Controls > Toner Supply Assembly
Process/Operation > Image Formation System > Controls > Toner Supply Assembly
● Toner Supply Control/Toner Level Detection
Toner is supplied from the Toner Container to the Developing Assembly. At the same time,
toner level in the Hopper Unit is detected. The light emitted from the Toner Level LED PCB
is received on the Toner Level PT PCB, and toner level in the Hopper Assembly is detected
according to the light reception.
Toner Supply Motor
Toner Container Motor
M6,M8,M10,M12
DC Controller PCB
(UN9)
Developing
Assembly
supply count
M7,M9,M11,M13
Toner
Container
Drum Unit
Upper Feed Unit
Toner Supply Screw
Toner Supply Spring
Toner level LED PCB(UN18-UN21)
Toner level PT PCB(UN22-UN25)
Hopper Unit
Toner Supply Control
Title
Description
Supply timing
Operation of the host machine
Supply to
the Hopper
Toner is supplied from
the Toner Container to
the Hopper Unit.
When the output result of
Toner Level PT PCB (UN22
to UN25) is changed from L
to H.
The Toner Container Motors (M7,
M9, M11, M13) are driven and
toner is supplied until the Sensor
shows L.
Supply to the
Developing
Assembly
Toner is supplied from
the Hopper Unit to the
Developing Assembly.
When toner supply is
determined necessary by
the result of ATR control.
The Toner Supply Motors (M6,
M8, M10, M12) are driven for 1
block.
F-2-98
T-2-33
Toner Level Detection
Detection
description
Detection timing
Detecting to
(location)
Message
(machine operation)
Empty toner warning
1 (approx. 10% left
until the toner is out)
Prediction from the Developing
Assembly toner supply count (Judged
from the number of toner supply to the
Hopper Unit.)
Developing
Assembly
supply count *1
Please prepare a toner
container(Continuous
printing is enabled.)
Empty toner (approx.
0% left until the toner
is out)
The output result of the Toner Level
PT PCBs (UN22 to UN25) is changed
from L to H and the H state continues
for 60 seconds.
Toner Level PT
PCB
Replace the toner
cartridge. (Host
machine is stopped.)
*1: Developing Assembly supply count shows the level of toner supplied from the Hopper Unit
to the Developing Assembly.
NOTE:
The Developing Assembly supply count is reset in the case that the Toner Container is
removed and then installed while absence of toner is detected, print operation is made,
and then presence of toner is detected. Therefore, there is no need to reset the service
mode. Note that the supply count is not reset in other cases.
Because the Hopper Assembly in this equipment is very small, printing cannot be
executed after absence of toner in the Toner Container is detected. Therefore, the
3-level display, which is available with the existing models, is not available.
In the case that the Toner Container is replaced while continuous printing is available,
warning message will not be cleared. To clear the warning message, select the
following: User Mode > Adjustment/Maintenance > Replace Toner While Printing Is Still
Possible, and then select the target color.
Example: when selecting black
A message “Did you replace the black toner while printing was possible? (Perform this
operation only if toner was replaced when printing was possible.)” is displayed. By
selecting “Yes”, the supply count is reset and the warning is cleared.
Related error codes: (x : 0 = Y, 1 = M, 2 = C, 3 = Bk)
E025-0x00
Toner Supply Motor error
E025-0x10
Toner Container Motor error
E025-0x20
Toner Container Motor Driver error
E025-0x30
Toner Container Motor short circuit error
T-2-34
