Презентация на тему iRADVC7000/9000s

side of sleeve
3. Toner leakage (Y, M)
4. Toner leakage

(Bk)

No toner is applied on the rear side of sleeve cylinder.

The front side of machine is soiled with toner including carrier. If the soiling gets worse, the front side of paper is soiled.

The front side of machine is soiled with toner including carrier. If the soiling gets worse, the front side of paper is soiled.

Need to replace the developing assembly

Clean inside the machine

Perform service work

Clean inside the machine.
Is the developing assembly heavier than the service part (new) developing assembly?

Same or lighter.
Wait and see

Yes

After shaking the developing assembly gently, execute STIR Bk inside the machine. As the result, the assembly lose weight.

Output 200 pages of PG 10 images.

Service work: Workflow

* Faulty images due to high voltage error are output
Images with solid area even in margins or images with toner (rough texture)
throughout the page is output.

*Replace the 1st transfer H.V. PCB ass’y (FM3-9590).

As the measure against the temperature rise inside the machine, place the machine far away from the wall as much as possible, and replace the 3 filters regularly.
　　 - Distance between the rear side of machine and the wall: preferably 10cm or more
　　- Filter (3 filters) replacement intervals: every 500K images

B. Upgrade Dcon
　Upgrade Dcon to ver59.01 or later. (The settings described in C in the next page take effect properly only with Dcon ver59.01 or later.)

*Output PG 10 images and replace the developing assembly at the same time. The symptom is not solved simply by replacing the 1st transfer H.V. PCB ass’y.

*PG10 image: Test image reproduced by
　all the 4 colors (YMCK).

YES

NO

Does the symptom solved by outputting 200 pages of PG 10 images?

the developing assembly stop frequency: Level 1 > Copier

> Option> FNC-SW > INTROT-1 > from “200” to “50.”
- Change the TD ratio limiter table: Level 2 > Copier > Adjust > DENS > LLMT-PT > from “0” to “1” (Affected color only).
- Increase toner discharge amount at time of low duty job: Level 2 > Copier > Option > IMG-DEV > DEVL-VTH > from “1” to “2.”　　
　　　　　* Pay attention to the waste toner bottle replacement intervals
　　　　　* If possible, turn off the environment heater (smeared image or deterioration of hue change may occur.)

Output 25 pages of CA1 chart and then let the machine execute the post rotation. Repeat this cycle 4 times.

Notes:

1. If the value of service mode item “SIGG” has been changed, replace the developing assembly of the affected
color, and then perform the initialization on the new developing assembly. This will reset the value of “SIGG”
to the default and the new service mode settings described in “C” above take effect properly.
Level1>COPIER>ADJUST>DENS>SIGG-X

2. If the main power switch is turned off immediately after a large number of pages are output, the temperature
overshoot occurs, and consequently leading to the temperature rise inside the machine.

Relation between LLMT-PT value and T/D ratio control range

Execute the auto gradation correction
(full correction).

Claw
[2] Dust filter (FL2-8946)

Replacement interval: every 500K images
[3] Ozone filter (FL3-4101) Replacement interval: every 500K images　

[1]

[1]

[2]

[3]

[4]

[5]

[6]

[4] Fixing screw
[5] Finger recess
[6] Dust filter (FL2-0439) Replacement interval: every 500K images　

developer both in the normal condition and at occurrence

of rear side coating
failure or developer leakage are explained below.

If developer remains unmoving in the front/A-B front side, developer leakage at the front or developer leakage due to
increased amount of toner may occurs.
If developer remains unmoving in the rear (D) side, excess developer is discharged, and the amount of toner inside
the developing assembly may decrease.

into the developing assembly or leaving of toner bottle

in high
temperature environment

B. Temperature rise inside the machine
　　　When a large number of originals with a low density is printed, toner [1] is not consumed and turns
into agglomeration [4] in a space between the developing sleeve [2] and the blade [3], consequently
causing coating failure [5] on the sleeve.









C. Error in servicing
　　　At the time of replacing the developing assembly, the initialization is performed.
But, a used developing assembly is used for this work.

bottle of affected color and
output 200 pages

of PG10 images to discharge the
toner agglomeration.
- Remove the foreign material with a special tool.

Need to replace the developing assembly

Output 10 pages of PG10 images so that the initial/post rotation will be executed.

Solved

NO

Perform service work

Service work: Workflow

As the measure against the temperature rise inside the machine, place the machine far away from the wall as much as possible, and replace the 3 filters regularly.
　　 - Distance between the rear side of machine and the wall: preferably 10cm or more
　　- Filter (3 filters) replacement intervals: every 500K images

B. Upgrade Dcon
　Upgrade Dcon to ver59.01 or later. (The settings described in C in the next page take effect properly only with Dcon ver59.01 or later.)

* PG10 image: Test image reproduced by all the 4 colors (YMCK).

the developing assembly stop frequency: Level 1 > Copier

> Option > FNC-SW > INTROT-1 > from “200” to “50.”
- Change the TD ratio limiter table: Level 2 > Copier > Adjust > DENS > LLMT-PT > from “0” to “1” (Affected color only).
- Increase toner discharge amount at time of low duty job: Level 2 > Copier > Option > IMG-DEV > DEVL-VTH > from “1” to “2.”　　
　　　　　* Pay attention to the waste toner bottle replacement intervals
　　　　　* If possible, turn off the environment heater (smeared image or deterioration of hue change may occur.)

Output 25 pages of CA1 chart and then let the machine execute the post rotation. Repeat this cycle 4 times.

Notes:

1. If the value of service mode item “SIGG” has been changed, replace the developing assembly of the affected
color, and then perform the initialization on the new developing assembly. This will reset the value of “SIGG”
to the default and the new service mode settings described in “C” above take effect properly.
Level1>COPIER>ADJUST>DENS>SIGG-X

2. If the main power switch is turned off immediately after a large number of pages are output, the temperature
overshoot occurs, and consequently leading to the temperature rise inside the machine.

Relation between LLMT-PT value and T/D ratio control range

Execute the auto gradation correction
(full correction).

6. White spots (Y,M,C)

[Symptom]
In case of less color jobs, white spots may appear on image due to shortage of the toner amount in the color developing assemblies of Y, M and C is reduced.
[Cause]
When there are less color jobs, the toner supply control of the color developing assembly does not operate as expected resulting in toner supply shortage.

P-1 　White spots image

[A] White spots (2 - 3mm in diameter)

[A]