Scan Area - Konica Minolta bizhub C450 Service Manual

10. Service Mode
10.4.6

Scan Area

• Use the following Color Chart for the adjustment of the Scanner Section.
• If the Color Chart is not available, a scale may be used instead.
C
B
A
Original Reference
A. Image Position: Leading Edge
Functions • To adjust variations in mounting accuracy and sensitivity of the Scanner Home Sen-
sor and in mounting accuracy of the Original Width Scale by varying the scan start
position in the main scan direction.
Use When the Original Glass is replaced.
When the Original Width Scale is replaced.
Adjustment
Specification
B
Adjustment If width B on the copy is less than 6.5 mm, increase the setting value.
Instructions If width B on the copy is more than 7.5 mm, decrease the setting value.
Adjustment 1. Call the Service Mode to the screen.
2. Touch these keys in this order: "Machine" → "Scan Area" → "Image Position: Lead-
Procedure
ing Edge."
3. Position the Color Chart correctly so that the original reference point is aligned with
the scale.
4. Press the Start key to make a copy.
5. Check point B on the image of the copy.
6. If width B on the copy falls outside the specified range, change the setting using the
+/- key.
7. Press the Start key to make another copy.
8. Check the image on the copy to see if the specifications are met.
9. Make adjustments until the specifications are met.
230
• A: Image Position: Side Edge
• B: Image Position: Leading Edge
• C: Cross Direction Adjustment
• D: Feed Direction Adjustment
D
4036fs3018c0
•Adjust so that width B on the sample copy
made falls within the specified range.
•An adjustment must have been completed
correctly of "Print Positioning: Leading Edge"
of Printer Area.
Specifications
B: 7 ± 0.5 mm
4036fs3020c0
(10 ± 0.5 mm if a scale is used)
Setting Range
-5.0 to +5.0 (in 0.1 mm increments)
Field Service Ver. 1.0 Mar. 2005