Canon imageRUNNER ADVANCE C255 Series, Руководство по обслуживанию, Страница: 769 / 987

COPIER (Service mode for copier) > OPTION (Specification setting mode) > IMG-MCON
BGE-OFS 2 Fine adj at bckgd adj (bckgd removal)
Detail To make a fine adjustment of the background adjustment (background removal) level which can
be set manually.
Break up the adjustment values into smaller ones when user does not satisfy with the default
adjustment values.
Use Case When color fogging occurs on the output image when copying yellowed blank paper as an original
Adj/Set/Operate Method Enter the setting value (switch negative/positive by -/+ key) and press OK key.
Caution Since the background color is set to be washed out with this mode, not only the background of
yellowed blank paper, but also other light colors (light blue, etc.) are washed out.
Display/Adj/Set Range -15 to 15
Default Value 0
Additional Functions
Mode
Copy> Options> Density> Background Density
■ IMG-DEV
COPIER (Service mode for copier) > OPTION (Specification setting mode) > IMG-DEV
AUTO-DH 1 ON/OFF of proc auto adj at warm-up rotn
Detail To set ON/OFF of process auto adjustment (D-max/D-half control) at warm-up rotation.
Use Case When density varies at the time of making a large number of outputs
Adj/Set/Operate Method Enter the setting value, and then press OK key.
Display/Adj/Set Range 0 to 2
0: OFF, 1: ON (HH environment only), 2: ON (all environments)
Default Value 1
DV-RT-LG 2 ON/OFF of Drum Unit first idle rotation
Detail To set ON/OFF of idle rotation of the Drum Unit to be performed first time for the day.
Although idle rotation is not performed in the normal operation to extend the life of Drum Unit,
execute it for 60 seconds when any problem (image failure, etc.) occurs.
Use Case When an image failure occurs
Adj/Set/Operate Method Enter the setting value, and then press OK key.
Display/Adj/Set Range 0 to 1
0: OFF, 1: ON (60 seconds)
Default Value 0
DV-RT-KP 2 ON/OFF fog prevention: clr/B&W mix job
Detail To set ON/OFF of fogging prevention mode when fogging occurs on the single Bk image at a mixed
job including color printing and B&W printing.
When fogging occurs, set 1. Fogging is reduced by making the Developing Assemblies of Y, M, C
colors driven in single Bk mode to apply the developing AC high voltage.
Use Case When fogging occurs on the single Bk image at a mixed job including color printing and B&W
printing
Adj/Set/Operate Method Enter the setting value, and then press OK key.
Caution When 1 is set, the life of Developing Assemblies of Y, M and C becomes slightly shorter.
Display/Adj/Set Range 0 to 1
0: OFF, 1: ON
Default Value 0
8. Service Mode
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