Canon iR7086, Руководство по обслуживанию

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Chapter 5
5-17
F-5-40
Advise the user to clean the area where the CCD stops in stream reading if the message has appeared. A label indicating the points for stream reading (for small-
size and large-size) is attached to the rear of the copyboard glass.
If a jam has occurred, the machine will not execute dust detection at the end of a job. If the ongoing job is cancelled, it will execute dust detection at the end of
operation.
F-5-41
SERVICE MODE:
COPIER>OPTION>BODY>DFDST-L1 (level 2)
use it to adjust dust detection level between sheets (for small size paper)
COPIER>OPTION>BODY>DFDST-L2 (level 2)
use it to adjust dust detection level at the end of a job (for small size paper)
COPIER>OPTION>BODY>DFDST-L3 (level 2)
use it to adjust dust detection level between sheets (for large size paper)
COPIER>OPTION>BODY>DFDST-L4 (level 2)
use it to adjust dust detection level at the end of a job (for large size paper)
5.3.5.2 Dust Detection in Stream Reading Mode
0011-2230
iR7086
In addition to the common points for stream reading, the machine uses an additional 4 points at intervals of 0.5 mm to avoid areas of dust (in total, 5 points).
If it detects dust, however, it changes the point of reading to prevent dust from appearing in images. The detection of dust is executed at the end of each single job
that uses stream reading; the machine moves the ADF belt idly when stream reading is selected and identifies any black line as an area of dust.
When it detects dust, it resets the current point of stream reading, and uses the point of reference on the leftmost edge for dust detection; if dust is detected, it moves
the point of stream reading to the right by 1 point (0.5 mm) for detection of dust for a second time. If dust is not detected, the machine uses that point as the point
for stream reading. If dust is detected once again, it will use the next point. If dust is detected at all 5 points, the machine will indicate the message "Copyboard
Glass Soiled," which will remain unit the ADF is opened and the copyboard glass is cleaned.
Black line on
output
Dust
3 mm (7 points)
Small-size point of
reference for reading
Points of cleaning
Label
185mm
385mm
Large-size point of
reference for reading