User`s guide

Appendix A:Scanner and Printer Specific Features
ScanShop User’s Guide - 119
Bits Per Pixel
Three levels of bits per pixel are offered: 1 bit/pixel for black and white, and 4 or
8bits/pixel for gray scale.
Brightness
The brightness slider bar varies the brightness of the image, ranging from darkest
on the left to lightest on the right.
Contrast
The contrast slider bar allows you to vary the image contrast. Sliding it to the
right increases the contrast.
Threshold
The threshold slider bar allows you to select the level, below which all pixels are
set to black, and above which all pixels are set to white. Moving the slider bar
setting to the right increases this threshold level.
Auto Document Feeder
The Automatic Document Feeder (ADF) is an option on IS50 and IS60 scanners
(part number DF-60) and comes standard on the model IS410. The ADF
checkbox is located under the Threshold slider bar. If your scanner has an ADF,
it will be selectable.
If you try to scan with the ADF selected but do not have paper inserted in the
ADF, an error message will appear at the bottom of your image display window.
The Preview function is disabled when the scanner is in ADF mode.
Document Size
All three Ricoh scanners allow manual input of document size, but the
pre-defined document sizes are different for the IS50/IS60 and the IS410. The
abbreviated menu button for the IS50 and IS60 displays are as follows:
• letter
•legal
•A5
• A5 (land)