Troubleshooting guide

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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. 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:

PURPOSE RESOLUTION

Web pages 96 dpi

Sending E-mail 96 to 150 dpi

Printing 300 dpi

Saving as a PDF file 300 dpi

Sending Fax 200 dpi

OCR (Optical Character Recognition) 300 dpi

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:

Summary of content (11 pages)

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. 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.
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. Please remember to replace the reflective document mat when you are finished. 2. Second, load the transparency into the film holder and position it on the document table.
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. NOTES: • Make sure the document cover is completely closed; otherwise you cannot obtain proper colored images. • A newton ring (ring-shaped stripe pattern) may appear in the scanned image.
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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. 2. Set the cover on the film and press until you hear a click. Press around the entire perimeter of the cover to make sure it is secured. 3. Place the film holder on the document table so that the triangle mark on its tab is aligned with the triangle on the document table.
PAGE 6
STORING THE FILM HOLDERS When you're not using the film holders, you can store up to two holders inside the document cover. 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. See http://files.support.epson.com/htmldocs/per418/per418rf/index.htm for more information.
PAGE 7
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. You cannot scan a document or you only get a few dots for the scanned image Try one or more of the following solutions.
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• 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 (cross-hatch) patterns appear in the scanned image below for more information. • Select Color Control and check Continuous auto exposure in the Configuration dialog box, or adjust the Exposure setting using the Mode main window.
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. • Select the Descreening Filter check box in the Home Mode or the Professional Mode main window.
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. Or, adjust the Exposure setting by using the Professional Mode main window. Auto Exposure button in the • Check the color matching and color management capabilities of your computer, display adapter, and software.
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. • Images with a dark background may be cropped irregularly. • Images with a very bright background may be cropped irregularly. • Color negative films whose base color (background) is extremely light or dark cannot be cropped regularly.