Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 580

■ IMG-RDR
COPIER> OPTION> IMG-RDR
DFDST-L1 DADF mode dust dtct level adj: ppr intvl
Lv.1 Details To adjust dust detection level with dust detection correction control
that is executed at paper interval 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.
DFDST-L2 DADF mode dust dtct level adj: after job
Lv.1 Details To adjust dust detection level with dust detection correction control
5 that is executed 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.
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COPIER> OPTION> IMG-RDR
DF2DSTL1 DADF dust dtct lvl adj at ppr intvl:bck
Lv.1 Details To adjust dust detection level with dust detection correction control
that is executed at paper interval by the Scanner Unit (paper back) 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.