Canon imageRUNNER ADVANCE 8105 Series Service Manual page 828

COPIER > FUNCTION > CCD
Deriving of MTF filter coefficient
MTF-CLC
To derive the MTF filter coefficient to be set for ASIC based on the
Lv.1 Details
MTF value of the DADF complex chart.
Use case When replacing the Reader Controller PCB/clearing RAM data
During operation: ACTIVE, When operation finished normally: OK!
Display/adj/set range
Related service mode COPIER> ADJUST> CCD> MTF-M1 to M12, MTF-S1 to S12,
MTF2-M1 to M12, MTF2-S1 to S12
Supplement/memo The scanning data of the DADF complex chart is indicated in the
label of the Scanner Unit (DADF/Reader).
DF-WLVL3 White level adj in book mode (B&W)
Lv.1 Details To adjust the white level for copyboard scanning automatically by
setting the paper which is usually used by the user on the Copyboard
Glass.
Use case - When replacing the Copyboard Glass
- When replacing the Scanner Unit
- When replacing the Reader Controller PCB/clearing RAM data
Adj/set/operate method 1) Set paper on the Copyboard Glass.
2) Select the item, and then press OK key.
Caution Be sure to execute DF-WLVL4 in a row.
During operation: ACTIVE, When operation finished normally: OK!
Display/adj/set range
Related service mode COPIER> ADJUST> CCD> DFTBK-BW
DF-WLVL4 White level adj in DADF mode (B&W)
Lv.1 Details To adjust the white level for DADF scanning automatically by setting
the paper which is usually used by the user on the DADF.
Use case - When replacing the Copyboard Glass
- When replacing the Scanner Unit
- When replacing the Reader Controller PCB/clearing RAM data
Adj/set/operate method 1) Set paper on the DADF.
2) Select the item, and then press OK key.
Caution Be sure to execute this item after DF-WLVL3.
During operation: ACTIVE, When operation finished normally: OK!
Display/adj/set range
Related service mode COPIER> ADJUST> CCD> DFTAR-R, DFTAR-G, DFTAR-B,
DFTAR2-R, DFTAR2-G, DFTAR2-B, DFTBK-BW
BW-TGT Set of B&W shading target value
Lv.1 Details After the white level data (X/Y/Z) for the Standard White Plate is set,
read the Standard White Plate and set the black and white shading
target value.
Use case When replacing the Copyboard Glass/Scanner Unit
Caution Be sure to execute this item after execution of COPIER> ADJUST>
CCD>W-PLT-X, W-PLT-Y, W-PLT-Z.
During operation: ACTIVE, When operation finished normally: OK!
Display/adj/set range
Related service mode COPIER> ADJUST> CCD> W-PLT-X, W-PLT-Y, W-PLT-Z
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Service Mode > COPIER > FUNCTION > DENS
T-8-43
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Service Mode > COPIER > FUNCTION > DENS
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DENS
COPIER > FUNCTION > DENS
DEV-AGG Exe of dev unevenness elimination mode
Lv.1 Details To stir toner when uneven developing occurs, execute image
formation with solid white without feeding.
Because the Drum Cleaning Blade is flipped when only solid white
images are formed, form solid black images periodically.
Although the operation takes approx. 10 minutes in the initial
settings, the duration of execution (number of times) can be changed
with AGG-SW.
Use case When unevenness occurs right after executing TONER-S
Adj/set/operate method Select the item, and then press OK key.
If using frequently, the Drum Cleaning Blade might be flipped.
Caution
Required time Approx. 10 minutes
Related service mode COPIER> FUNCTION> INSTALL> TONER-S
COPIER> FUNCTION> DENS> AGG-SW
AGG-SW Set dev unevenness elimination mod times
Lv.1 Details To set the number of times to execute the developing unevenness
elimination mode.
As the value is incremented by 1, the duration of execution is
increased by approx. 5 minutes.
+: Increase (When eliminating developing unevenness surely)
-: Decrease (When shortening the duration of execution)
Although the operation is executed successively for the specified
numbers, unevenness can be resolved by executing it approx. 4
times (approx. 20 minutes).
Use case When changing the number of times to execute the developing
unevenness elimination mode
Adj/set/operate method Enter the value, and then press OK key.
Display/adj/set range 1 to 5
Unit Number of times
Appropriate target value 4
Default value 2
Related service mode COPIER> FUNCTION> DENS> DEV-AGG
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