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Solution:

1To identify the affected color, print three full-page, solid-fill A3 or DLT sheets for each of cyan, magenta, black, and green and three full-page, halftone A3 or DLT sheets for each of cyan, magenta, and yellow.

Because it is difficult to identify white spots on yellow, green is used instead of yellow.

2Detach the photoconductor unit of the affected color and check the drum surface. Is the surface stained?

Yes

Wipe the photoconductor unit with a dry cloth to remove the stain.

In the [Machine: Maintenance] group on the [Adjustment Settings for Operators] menu, execute 0504: [Execute Cleaning Initial Setting for PCU] for the specified color.

No

Replace the photoconductor unit.

3Print the image. Has the problem been resolved?

Yes

Finished!

No

Replaced the PCU cleaning unit and the photoconductor unit.

4If the problem persists, contact your service representative.

Note

  • For details about replacing the PCU cleaning unit and the photoconductor unit, see Replacement Guide.