Canon imageRUNNER ADVANCE 4551i Service Manual page 698

COPIER > ADJUST > MISC
K-ADJ 1
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Default Value
ACS-ADJ 1
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Default Value
ACS-EN 2
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Default Value
ACS-CNT 2
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Default Value
Set criteria for black text: front side
To set whether to judge the color of the text scanned with the Scanner Unit (for front side) as black.
As the value is larger, the text tends to be detected as black.
The setting is applied to the image on the front side when the Copyboard/DADF (1-path model) is
installed, whereas it is applied to the images on both the front and back sides when the DADF
(reverse model) is installed.
When adjusting the criteria for judging the color of the text scanned with the Scanner Unit (for front
side)
1) Enter the setting value (switch negative/positive by -/+ key) and press OK key.
2) Turn OFF/ON the main power switch.
-3 to 3
0
Set criteria for B&W/color in ACS:front
To set whether to judge the original scanned with the Scanner Unit (for front side) in ACS mode
as B&W/color original.
As the value is increased, the original tends to be detected as a B&W document, and as the value
is decreased, the original tends to be detected as a color document.
The setting is applied to the image on the front side when the Copyboard/DADF (1-path model) is
installed, whereas it is applied to the images on both the front and back sides when the DADF
(reverse model) is installed.
When adjusting the color recognition level in ACS mode at scanning with the Scanner Unit (for
front side)
1) Enter the setting value (switch negative/positive by -/+ key) and press OK key.
2) Turn OFF/ON the main power switch.
-3 to 3
0
Set ACS mode judgmt area: book mode, frt
To set the ACS judgment area in the image on the front side read with the Copyboard.
As the value is larger, the judgment area is widened.
When adjusting the ACS judgment area at copyboard reading
1) Enter the setting value (switch negative/positive by -/+ key) and press OK key.
2) Turn OFF/ON the main power switch.
-2 to 2
1
Set chromatic clr judgmt area: book, frt
To set the area to judge whether the image on the front side read with the Copyboard is color or
B&W at automatic color selection.
As the value is larger, the judgment area is widened.
When adjusting the area where the pixel is counted to judge whether it is a color/B&W image
1) Enter the setting value (switch negative/positive by -/+ key) and press OK key.
2) Turn OFF/ON the main power switch.
-2 to 2
0
685
8. Service Mode