Epson Perfection V500 - Manual (Page 151)

Type a name for your custom size, enter the size, click the Save button, then click OK.
Your new size appears in the Size list.
Click the arrow next to the Resolution list and select the number of dots per inch at which
you want to scan. See the table below for guidelines.
What you will do with the scanned
image
Suggested scan resolution
Send via e-mail, upload to web, view
only on the screen
96 to 150 dpi
Print 300 dpi
Use the settings in the Image Adjustments area of the window to modify the image quality
if necessary. See the table below for guidelines.
Setting Description
Brightness Adjusts the overall image lightness and darkness.
Contrast Adjusts the difference between the light and dark
areas of the overall image.
Unsharp Mask Turn on to make the edges of image areas clearer
for an overall sharper image. Turn off to leave
softer edges.