How can I tell which scanning resolution to use for the best results?
Resolution refers to how many dots per inch (dpi) or dots per centimeter (dpcm) your image contains. The best resolution for a scanned image depends on the type of image you're scanning and the final output device. As a rule of thumb for most images (except line art), use a scanning resolution that is approximately one third of your output resolution. For example, use a scanning resolution up to 100 dpi with a 300 dpi laser printer, and up to 200 dpi with a 600 dpi laser printer. For 1440 dpi ink jet printers, such as the EPSON Stylus Color series, use a scanning resolution of up to 300 dpi. Try a scanning resolution of 240 dpi for 720 dpi printing. Here are some recommended settings for different types of scans.
Image Type Scanning resolution Photograph 300 dpi Text with images 400 dpi Film or slides 300 to 3200 dpi Line art 300 to 3200 dpi Image for web 96 to 150 dpi Text for OCR 400 dpi Newspaper 400 dpi Magazine 300 dpi
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