4931
Cause
Paper feed adjustment may have failed for the following reasons.
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The paper for printing a test pattern is soiled. Otherwise, you have loaded colored paper.
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The printer may be exposed to strong light, such as direct sunlight, which can cause the sensors to malfunction.
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The test pattern was printed too faintly.
What to Do
Tap OK on the touch screen to dismiss the error, and then take the following actions.
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Load unused paper.
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Make adjustments to ensure that the printer is not exposed to strong light.
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Print a nozzle check pattern to check the print head status.
If the pattern has gaps or horizontal white lines, the print head nozzle is blocked. Clean the print head.
