User`s guide

Appendix A:Scanner and Printer Specific Features
ScanShop User’s Guide - 75
Bits Per Pixel
Four levels of bits per pixel are offered: 1 bit/pixel for black and white,
4bits/pixel for gray scale, 8bits/pixel for gray scale, and 24 bits/pixel for color.
Auto Document Feeder
If the ADF is installed, its checkbox will appear “solid.” When available, clicking
on this checkbox alternately enables and disables use of the ADF for scans.
If you try to scan with the ADF selected but have no paper inserted in the ADF,
an error message will appear at the bottom of your image display window. The
Preview function is also disabled when the scanner is in ADF mode.
Transparency Unit
Clicking on this checkbox, if it is available, selects scanning using the
transparency unit. This will allow you to scan from a transparency.
Brightness
The brightness slider bar varies the brightness of the image, ranging from darkest
on the left to lightest on the right.
Zoom X, Zoom Y
Entering percentage values in these controls lets you change the magnification of
the scanned image, while preserving the DPI value. For example, choosing a
value of 200% along a particular direction will cause twice as many pixels to be
used to represent the same length, so that at a constant DPI, that image will be
twice as long in that direction.
The zoom can be set from 50% to 200% in 1% increments.
Document Size
In selecting the size of the area to be scanned, the following standard document
sizes are typically offered:
• letter
•A5
• A5 (land)