Konica Minolta bizhub C250 Service Manual page 231

8. Utility Mode
<Vertical Adjustment>
Functions • To adjust the zoom ratio in the sub scan direction for the Scanner Section
Use • The Scanner Assy has been replaced.
• The Scanner Motor has been replaced.
• The Scanner Drive Cables have been replaced.
Adjustment
Specification
Adjustment If the D width on the copy sample is less than one on color chart, increase the setting.
Instructions If the D width on the copy sample exceeds one on color chart, decrease the setting.
Setting/ 1. Call the Administrator Setting to the screen.
2. Touch [System Setting] → [Expert Adjustment] → [Scanner Adjustment] → [Vertical
Procedure
Adjustment].
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 the D width on the image of the copy.
6. If the image 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.
(9) ADF Adjustment
<Centering>
Functions • To make a manual adjustment of the document centering position in each of the ADF
modes.
Use • To use when the "Centering Auto Adjustment" cannot make adjustment completely.
Setting/
Procedure
188
D
4038F3C518DA
4038F3C502DA
Field Service Ver. 1.0 Jul. 2005
•Measure D width on the color chart and on
the sample copy, and adjust the gap to be
within the following specification.
Specifications
D: ± 1.5 mm
Setting Range
0.990 to 1.010 (in 0.001 increments)
1. Call the Administrator Setting to the
screen.
2. Touch [System Setting] → [Expert
Adjustment] → [ADF Adjustment] →
[Centering].
3. Enter the numeric value using the
[+] / [-] key.
Adjustment range: -3 mm to +3 mm
• To read the image in direction A, use [-]
key.
• To read the image in direction B, use [+]
key.
4. Press [OK].