Canon imageRUNNER ADVANCE C350 series Service Manual page 974

FEEDER> ADJUST
DOCST2 DADF img lead edge margin: back, 2-sided
Lv.1 Details To adjust the margin at the leading edge of the image on the back
side at DADF 2-sided reading.
As the value is incremented by 1, the margin at the leading edge of
the image is decreased by 0.1mm. (The image moves in the direction
of the leading edge of the sheet.)
Execute this item when the output image after DADF installation is
displaced.
When replacing the Scanner Unit or Controller PCB/clearing the
Reader-related RAM data, enter the value of service label.
Use case - When installing DADF
- When replacing the Main Controller PCB/clearing RAM data
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Display/adj/set range -30 to 30
Unit 0.1 mm
Default value 0
Related service mode FEEDER> ADJUST> DOCSTDUP
LA-SPD2 Fine adj of DADF image magnifictn: back
Lv.1 Details To make a fine adjustment of the image magnification ratio in vertical
scanning direction at DADF reading.
As the value is incremented by 1, the image is reduced by 0.01% in
vertical scanning direction. (The feeding speed increases, and the
image is reduced.)
When replacing the Main Controller PCB/clearing RAM data, enter
the value of service label.
Use case - When installing DADF
- When replacing the Main Controller PCB/clearing RAM data
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Display/adj/set range -200 to 200
Unit 0.01 %
Default value 0
8
Service Mode > FEEDER > ADJUST
8 Service Mode > FEEDER > ADJUST
FEEDER> ADJUST
DOCSTDUP DADF img lead edge margin:front, 2-sided
Lv.1 Details To adjust the margin at the leading edge of the image on the front
side at DADF 2-sided reading.
As the value is incremented by 1, the margin at the leading edge of
the image is decreased by 0.1mm. (The image moves in the direction
of the leading edge of the sheet.)
Execute this item when the output image after DADF installation is
displaced.
When replacing the Scanner Unit or Controller PCB/clearing the
Reader-related RAM data, enter the value of service label.
Use case - When installing DADF
- When replacing the Scanner Unit
- When clearing the Reader-related RAM data
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Caution Be sure to use DOCST at the time of 1-sided reading.
Display/adj/set range -30 to 30
Unit 0.1 mm
Default value 0
Related service mode FEEDER> ADJUST> DOCST, DOCST2
Supplement/memo Since the front side reading operation differs between 1-sided and
2-sided reading, separate service modes have been prepared to
improve the accuracy.
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T-8-69
8-204