Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 581

COPIER> OPTION> IMG-RDR
DF2DSTL2 Adj DADF dust dtct level at job end:bck
Lv.1 Details To adjust dust detection level with dust detection correction control
that is executed by the Scanner Unit (paper back) after the job is
completed in DADF mode.
Reduce the value in the case of frequent display of cleaning
instruction at the time of dust detection. As the value is smaller, the
dust is less detected.
Increase the value in the case of black lines. As the value is larger,
the small dust is more likely detected.
Use case • When black line occurs due to dust
• Upon user's request
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Caution When increasing the value too much, the cleaning instruction screen
may appear too often since even small dust that will not be appeared
on the image can be detected.
When reducing the value too much, black lines may appear on the
image.
Display/adj/set range 0 to 255
0: OFF
Default value 200
Supplement/memo Black lines can appear on the image if there is dust. With dust
detection correction control, the image is corrected to prevent black
lines once dust is detected.
■ IMG-MCON
PASCAL
Lv.1 Details
Use case
Adj/set/operate method 1) Enter the setting value, and then press OK key.
Display/adj/set range
Default value
SCR-SLCT
Lv.2 Details
T-5-65
Use case
Adj/set/operate method 1) Enter the setting value, and then press OK key.
Display/adj/set range
Default value
Related user mode
TMC-SLCT
Lv.2 Details
Adj/set/operate method 1) Enter the setting value, and then press OK key.
Display/adj/set range
Default value
COPIER> OPTION> IMG-MCON
Use/no use of auto gradation adj data
To set to use/not to use the gradation adjustment data gamma LUT
that is generated by auto gradation adjustment (Full/Quick Adjust)
control.
Selection is available as to whether to use gamma LUT at the time of
image formation.
When PASCAL-related failure occurs/when identifying the cause of
PASCAL-related failure
2) Turn OFF/ON the main power switch.
0 to 3
0: Initial LUT is used. (Automatic gradation adjustment is not used.)
1: Auto gradation adjustment is used.
2 to 3: Not used
1
Halftone process in Photo Printout mode
To set halftone process (error diffusion, screen 2 types) in Photo
Printout mode when making a copy.
Change the setting if the copy image has a problem with the initial
setting (Low screen ruling).
Select 0 (error diffusion) in the case of moire (suitable for character
reproduction).
Select 2 (High screen ruling) in the case of rough dots.
When moire image or rough dots occurs on copy image
2) Turn OFF/ON the main power switch.
0 to 2
0: Error diffusion, 1: Low screen ruling, 2: High screen ruling
1
Function Settings> Copy> Photo Printout Mode
Setting of error diffusion coefficient
To set coefficient to be used for error diffusion process.
Specify according to the level of granularity and dot stability.
2) Turn OFF/ON the main power switch.
0: Small granularity/low dot stability
1: Small granularity/low dot stability (color mode), Large granularity/
high dot stability (B&W mode)
2: Large granularity/high dot stability
2
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