Konica Minolta bizhub C200 Service Manual page 178

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Field Service Ver. 2.0 Dec. 2008

(5) Gradation Adjustment

• It will not be displayed when the following setting is set to "ON."

[Service Mode] → [Imaging Process Adjustment] → [Dev. Bias Choice]

• To make an automatic adjustment of gradation based on the test pattern produced

and the readings taken by the scanner.

• Color reproduction performance becomes poor.

• The IU has been replaced.

• The image transfer belt unit has been replaced.

• Printer (Gradation)

• Printer (Resolution)

1. Perform image stabilization.

• Before executing gradation adjust, be sure to perform Image Stabilization.

2. Call the Admin. to the screen.

3. Touch [System Settings] → [Expert Adjustment] → [Gradation Adjustment].

4. Select the appropriate mode for the gradation adjustment.

5. Press the Start key to let the machine produce a test pattern.

6. Place the test pattern produced on the original glass.

7. Place ten blank sheets of A3/11 x 17 paper on the test pattern and lower the original

8. Press the Start key. (The machine will then start scanning the test pattern.)

9. Touch [OK] and repeat steps from 2 through 7 twice (a total of three times).

• If the image is faulty, perform the troubleshooting procedures for image problems.

: It gives the highest priority to gradation performance of the

image as it adjusts.

: It gives the highest priority to reproduction performance of

letters and lines as it adjusts.

: It gives the highest priority to increasing the number of

images to be stored in the memory as it adjusts.

8. Utility Mode

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