Epson ET-4810 Series User Manual page 172

Solving Problems
The original was pressed with too much force.
Solutions
If you press with too much force, blurring, smudges, and spots may occur.
Do not press with too much force on the original or the document cover.
The copy density setting is too high.
Solutions
Lower the copy density setting.
"More Menu Options for Copying" on page 64
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Moiré (Cross-Hatch) Patterns Appear in the Copied Image
If the original is a printed document such as a magazine or a catalog, a dotted moiré pattern
appears.
Solutions
Change the reduce and enlarge setting. If a moiré pattern still appears, place the original at a slightly
different angle.
"More Menu Options for Copying" on page 64
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An Image of the Reverse Side of the Original Appears in the Copied Image
The following causes can be considered.
When scanning thin originals, images on the back may be scanned at the same time.
Solutions
Place the original on the scanner glass and then place a piece of black paper over it.
"Placing Originals on the Scanner Glass" on page 37
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Printing, Copying, Scanning, and Faxing Quality is Poor
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Copy Quality is Poor