Epson Stylus NX510 Series Quick Manual page 41

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The ink cartridges may be low on ink. Check your cartridge status (see
page 33) and replace cartridges, if necessary (see page 34).
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If a dotted line appears in the image, clean the scanner glass with a soft, dry,
lint-free cloth (paper towels are not recommended and may permanently
scratch the surface), or use a small amount of glass cleaner on a soft cloth, if
necessary. Do not spray glass cleaner directly on the glass.
Problems and Solutions
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