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Solution:

The solution depends on the length of intervals whereby the density fluctuation occurs.

1In the [Machine: Maintenance] group on the [Adjustment Settings for Skilled Operators] menu, execute 0502: [Execute Process Initial Setting].

2Print the image. Has the problem been resolved?

Yes

Finished!

No

In the [Machine: Maintenance] group on the [Adjustment Settings for Skilled Operators] menu, execute 0515: [Execute Developer Refreshing].

3Print the image. Has the problem been resolved?

Yes

Finished!

No

Go to the next step.

4Print a full-page, half-tone A3 sheet for each of cyan, magenta, yellow, and black, and then measure by a ruler, etc., the intervals between the spots affected by density fluctuation.

5Perform the following solution. If the applicable interval is not listed, contact your service representative.

Interval

Affected unit

Solution

40 mm

Charge roller's pitch circle

  1. Clean the charge roller.

  2. In the [Machine: Maintenance] group on the [Adjustment Settings for Skilled Operators] menu, execute 0502: [Execute Process Initial Setting].

  3. In the [Machine: Image Quality] group on the [Adjustment Settings for Skilled Operators] menu, select 0201: [Adjust Image Density/ DEMS] and execute [Image Density Adjustment: Manual Execute].

50 mm/25 mm

Development roller's pitch circle

In the [Machine: Image Quality] group on the [Adjustment Settings for Skilled Operators] menu, select 0201: [Adjust Image Density/ DEMS] and execute [Image Density Adjustment: Manual Execute].

63 mm

Paper transfer roller's pitch circle

See Banding: 63 mm (2.4 inches) Intervals.

189 mm

Photoconductor's pitch circle

  1. In the [Machine: Image Quality] group on the [Adjustment Settings for Skilled Operators] menu, select 0201: [Adjust Image Density/ DEMS] and execute [Image Density Adjustment: Manual Execute].

  2. If the problem persists, align the photoconductor's drum shaft and drum gear.

  3. If the problem persists, proceed the steps in Banding: 189 mm (7.5 inches) Intervals.

6If the problem persists or the applicable interval is not listed, contact the service representative.

Note

  • Do not use ethanol or any other organic solvent to clean the charge roller. Otherwise it may cause damage to the charge roller.

  • After performing the solution, it is recommended to perform the color calibration of the external controller.

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