It is essential that you turn on the scanner before you turn on the computer. If you are already working on the computer and need to use the scanner and it is shut off, always shut down the computer, turn on the scanner, and restart the computer. Always turn off the scanner after you've shut down the computer. Please follow these procedures or you'll risk damaging the scanner.

1. Lift up the top of the scanner. Place whatever image you wish to scan face down on the plate glass, aligning the image with the orange arrow in the upper right hand corner.
2. Close the top of the scanner.
3. Open up Adobe Photoshop by finding the Launcher and double-clicking on the icon for Adobe Photoshop. Go to File and Import, and then select the Apple Color OneScanner.
4. This will open the scanner dialog box, which has a grid on the left hand side to show the scanned image, and various control buttons on the right hand side. Press the Preview button in the lower right hand corner to see a preview of what the scan will look like.
5. Position and hold down the cursor in the upper left hand corner of the grid to draw a cropping border of "marching ants" around the edges of the part of the image you want to appear in the scan.
6. If the tone of the preview image looks too light or dark, click on the Tone button in the lower left hand corner. It will open a dialog box showing thumbnail versions of various exposures of the image. To change the exposure, click on the thumbnail that best approximates the exposure you would like to see in the image, and press Apply.
7. You can also manipulate the distribution of light and shadow in the scanned image. Click on the Threshold button in the lower left hand corner. Using the cursor, you can move the arrows at the opposite ends of the Highlight/Shadow spectrum to adjust the light/shadow distribution. Click on Apply to apply these changes.
8. When you are scanning for the Web or for PowerPoint, you should use images with a 72 dpi (dots-per-inch) resolution. It is usually best to scan an image at the same resolution as the final image, in order to minimize distortion or loss/addition of information. However, depending on the size of the original image that you are scanning, you may need to scan at different resolutions for different size images and then resize the image in Photoshop.
9. For large images that take up almost all of the glass plate on the flatbed, select a resolution of 72 dpi on the scanner. Using the cursor, select the Custom resolution from the pulldown menu in the Resolution box in the upper right hand corner. Enter 72 as the custom resolution. You will notice that the Height and Width of the image in pixel size will automatically adjust to fit the resolution in the Image Info. section.
10. Click on the Scan button to scan. This should take 15-30 seconds.
11. The scanned image will appear in Photoshop. Click on the image to select. Go to Image and select Image Size. This will open up a dialog box specifying the resolution and dimensions of the image in screen size and print size (images will print out larger on a printer because most printers have higher resolution than most computer monitors. It will also tell you the resolution of the image, which for Web and PowerPoint images, should be 72 dpi. If you want to resize the image, enter a new dimension in the Width or Height box. For example, for a fullsize image, enter 768 into either the Width or Height box for whichever is the greater dimension. Be sure that the Resample Image and Constrain Proportions boxes are checked at the bottom of the dialog box. Click on "OK" to close the box.

To adjust and change the image and save it, follow instructions for Adobe Photoshop.
12. If you are scanning an image that takes up a smaller part of the glass plate on the flatbed, you will probably need to scan at a higher resolution and then change the resolution in Photoshop. Press the Preview button to scan a preview image, then crop the image to the size you want. You will notice the image dimensions in height and width in the dialog box. Move the cursor to the Resolution pulldown menu and select a resolution that will give you the dimensions that you want (the dimensions became greater the greater the resolution you select). For an image that takes up only half of the glass plate, you might try a 120 or 150 dpi resolution, and for an image that takes up 1/4 of the plate, you might use 300 dpi. Press the Scan button to scan the image. When the image appears in Adobe Photoshop, go to Image and then Image Size. Adjust the image dimensions to the size that you want. Then change the resolution of the image to 72. You may need to enter the new dimensions twice.
13. If you want to scan a small image as a thumbnail image, it is best to select a resolution of 72 on the scanner and then decrease the pixel dimensions once you get the image into Photoshop.
14. If you are planning to scan pages with text (Ex. a magazine), you should scan at a higher resolution. But remember, the smaller the size of the text, the more likely you are to encounter distortion in the scan.
15. Remember to shut down the flatbed scanner after you shut down the computer.