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User GuidePro C7500/C7500H

White Bird Tracks

Bird-track-like white spots appear in the area around 10 mm (0.4 inches) from the trailing edge of the paper.

Illustration of White Spots: Like Bird Footprints

Cause:

This may occur if the transfer entrance guide plate is stained at low temperature and humidity.

Solution:

1Clean the transfer entrance guide plate.

For details, see Clean the Transfer Entrance Guide Plate

2Print the image. Has the problem been resolved?

Yes

Finished!

No

Go to the next step.

3Increase the temperature of the machine’s ambient environment.

Increase the temperature to approximately 20°C and humidity to approximately 30%.

4Print the image. Has the problem been resolved?

Yes

Finished!

No

Go to the next step.

5Using a ruler, measure the length of the area with white spots (excluding the margin).

6If the paper is not registered as custom paper, register the brand of the paper.

7In [Detailed settings] for the custom paper you are using, select 1239: [Margin], and then move the image closer to the trailing edge in the following setting according to the measured length

1239-01: Margin: BW/FC/FCS/S: Leading Edge

1239-03: Margin: FCS: Leading Edge: Clear/Special

1239-04: Margin: FCS: Leading Edge: White

1239-05: Margin: FCS: Leading Edge: Metallic

8Print the image. Has the problem been resolved?

Yes

Finished!

No

No further improvement is likely.