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Technical Explanation > Image Formation System > Controls > Transfer/Separation
Technical Explanation > Image Formation System > Controls > Transfer/Separation
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Secondary Transfer Outer Roller Cleaning Control
Purpose: To prevent transfer failure and soiling at the back of the paper caused by soiling of
the Secondary Transfer Outer Roller
Control description:
The secondary transfer cleaning bias, which has been generated on the Secondary
Transfer High-voltage PCB (UN03), is applied to the Secondary Transfer Outer Roller.
Residual toner on the Secondary Transfer Outer Roller is attached to the ITB, and then
collected by the ITB Cleaning Unit.
[1]
[3]
[2]
Control timing
Adjustment timing
Conditions
Automatic adjustment by the
output of a specific number of
prints
When a job starts
Each time
At paper interval
For each 100 accumulated images
When transparency is fed
At job completion
Each time
Automatic adjustment by the
accumulation of video count
values
At paper interval
For each accumulated video count
value of 3000%
After 30 images from the start of a
job and the video count value of less
than 2.0% (equivalent to accumulated
video count value of 100%)
At job completion
Each time
Jam removal
At recovery from jam
Jam occurrence
At startup
At main power-on
8 hours or more have elapsed in
high-speed startup mode
At normal startup
At recovery from sleep mode 8 hours or more have elapsed in
sleep mode
Automatic adjustment by
replacement
Drum Unit replacement
When a new Drum Unit is inserted
Replace the Developing Unit. When FUNCTION > INSTALL >
INISET-Y/M/C/K/4C is executed
Control timing
Adjustment timing
Conditions
At initial installation
At power-on
At initial installation
When Settings/Registration is
executed
Adjustment/Maintenance > Adjust Image Quality > Auto Adjust
Gradation
Adjustment/Maintenance > Adjust Image Quality > Correct Shading
Adjustment/Maintenance > Adjust Image Quality >Correct Color
Mismatch
Adjustment/Maintenance > Maintenance > Clean Inside Main Unit
When service mode is executed When FUNCTION > CLEANING > 2TR-CLN is executed
Related Service Mode:
COPIER > FUNCTION > CLEANING > 2TR-CLN : Clean of Secondary Transfer Outer
Roller
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Separation
This control separates paper from the ITB by elastic force of the paper. (Curvature separation
method)
In the case of thin paper which has low elastic force, the Static Eliminator removes positive
potential at the back of the paper.
This reduces electrostatic absorption force of the paper so that paper can be easily
separated.
[1]
[3]
[2]
[4]
Parts name
[1] Secondary Transfer Outer Roller
[2] Secondary Transfer Inner Roller
[3] Separation Static Eliminator
[4] Paper
T-2-29
F-2-57
T-2-30