Epson Perfection 3170 Troubleshooting Manual
Scanning tips and troubleshooting guide
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EPSON SCANNING TIPS AND TROUBLESHOOTING GUIDE
SELECT A SUITABLE RESOLUTION
The best scanning resolution depends on the purpose of the scan.
When you specify a high resolution, the number of pixels increases and the scanned image
becomes finer in texture. However, increasing the resolution causes the file size to increase. For
example, an 8.5 x 11-inch original scanned at 300 dpi can produce a 24MB file. The same original
scanned at 72 dpi creates only a 1.3MB file. Large files take longer to process and print, so select
the lowest possible resolution that produces acceptable quality.
Specify a suitable resolution according to your scanning purpose. Recommended resolutions for
scanning print material:
Web pages
Sending E-mail
Printing
Saving as a PDF file
Sending Fax
OCR (Optical Character Recognition)
Use Target Size to specify the output size of the scanned image.
If you are enlarging your image, you must increase the resolution (dpi) proportionally to maintain
the resolution of your original. Try scanning slides at 1200 dpi or higher.
If you reduce the size of the image on a page, it does not decrease its file size.
SCAN SETTINGS
For photos:
PURPOSE
Epson Perfection 3170 Scanner
RESOLUTION
96 dpi
96 to 150 dpi
300 dpi
300 dpi
200 dpi
300 dpi
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Table of Contents
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Summary of Contents for Epson Perfection 3170
- Page 1 EPSON SCANNING TIPS AND TROUBLESHOOTING GUIDE Epson Perfection 3170 Scanner SELECT A SUITABLE RESOLUTION The best scanning resolution depends on the purpose of the scan. When you specify a high resolution, the number of pixels increases and the scanned image becomes finer in texture.
- Page 2 For film: For slides: Specify Adjustment settings, if necessary, such as dust removal for slides and film.
- Page 3 PLACING FILM OR SLIDES ON SCANNER You can scan 35mm slides, 35mm film or negative strips, and Medium Format transparencies on the Epson 3170 using the appropriate film holders which come with the scanner. 1. The first step is always to open the document cover and slide up the reflective document mat gently to remove it.
- Page 4 2. Place slides in the holder, base side facing down as shown below. NOTE: The base side of the film is the side where the film maker's name and film ID numbers can be read correctly. Also, when you look at an image on the film from the base side, the image should appear normal, not reversed.
- Page 5 SCAN MEDIUM FORMAT FILM 1. With the base side facing down, place the film on the 120/220 (6 x 12 cm) size film holder with the entire frame positioned inside the film holder opening. Set the cover on the film and press until you hear a click.
- Page 6 1. Open the document cover and remove the reflective document mat. 2. Slide the film holder into the document cover. 3. Insert the reflective document mat in the top and bottom fittings of the document cover. http://files.support.epson.com/htmldocs/per418/per418rf/index.htm for more information.
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Page 7: Scanning Problems
SCANNING PROBLEMS The edges of a document are not scanned Place documents away from the edges of the document table to avoid unwanted image cropping. The area with a width of maximum .08 inch (2.1 mm) from the horizontal guide and .06 inch (1.5 mm) from the vertical guide cannot be scanned. - Page 8 • Change the Display Gamma setting of the scanned image for your output device, such as a monitor or printer, in the Configuration dialog box in EPSON Scan. • Select Unsharp Mask Filter in the Professional Mode main window. If moiré patterns appear in the image, see Moiré...
- Page 9 Moiré (cross-hatch) patterns appear in the scanned image A moiré is a cross-hatch pattern that appears on scanned images when you scan printed materials. It is a result of interference that occurs due to the difference between the pitches of the scanning and the halftone screens. Try one or more of the following solutions.
- Page 10 • Change the Display Gamma setting of the scanned image for your output device, such as monitor or printer, in the Configuration dialog box in EPSON Scan. • Select Color Control and select Continuous auto exposure in the Configuration dialog box.
- Page 11 You cannot scan film in the Full Auto mode or from the Thumbnail Preview When scanning film, EPSON Scan may be unable to detect the images, or may crop or group the images in an undesirable way, such as the following example.