4. Troubleshooting
•
Diagnostics > Adjustment > DADF Adjustment > Manual Adjustment
Purpose
To correct image position and magnification of scanned images via DADF manually. This function is
used when a result of automatic adjustment does not satisfy the expectation.
Operation Procedure
1) Choose one item from the table. There are three items to choose.
•
Image Position - Simplex Leading Edge
•
Image Position – Simplex Side Edge
•
Magnification – Vertical Direction
2) Select one item and press the “Edit” button.
3) Change the adjustment value with arrow button.
4) Image Position (Simplex Leading Edge, a) : If the current value is smaller than the
specification, press “+”. Otherwise, press “-”.
5) Image Position (Simplex Side Edge, b) : If the current value is smaller than the specification,
press “-”. Otherwise, press “+”.
6) Magnification (c) : If the current value is smaller than the specification, press “-”. Otherwise,
press “+”.
7) Press the “OK” button to apply the new value to the system.
E
xa mp le
Ca s e s
Le a d ing
Ed g e
S id e
Ed g e
Ve rtic a l Dire c tio n
Ad jus tme nt
= 11.5 mm
-15
= 8.8 mm
-
12
= 191.3 mm
+0.6% (ne a r -2.6mm)
= 188.0 mm
-0.5% (ne a r +2.0mm)
NOTE
The value of magnification adjustment needs to be calculated based on A3 size, 420mm ((190mm +
10mm*2)*2) if the used Scanner A/S Chart is A4 size.
Verification
1) Copy the Scanner A/S Chart. Scanning must be occur from the DADF.
2) To check the image position, compare the position of scale marks (,) of the chart to the copy.
3) To check the magnification, compare the length of line of the chart to the copy.
Specification
a, b : 10 ± 1.5 mm
c : 190 ± 1.5 mm
Image Position Unit : mm, Scale : 0.1, Min/Max : -6/+6
Magnification Unit : %, Scale : 0.1(0.42mm), Min/Max : 99/101
Reference
A4 Scanner A/S Chart
4-37
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