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A-61122/A-61124 March 1999 E-9
Resolution
The resolution of a scanned image is defined by the number of
pixels-per-inch (also known as dots-per-inch or dpi) that are used
to create the image.
The scanner is capable of producing document images of varying
resolutions.
For example, if the desired resolution is 100 dpi, and the scanner
uses a base resolution of 200 dpi and the desired (100 dpi)
resolution is achieved by scaling down from 200 dpi.
There is at least one base resolution for the scanner. The base
resolution is scaled down to achieve all other resolutions.
Product Resolution
(dpi)
Base Resolution
Document Scanner 9500 70 to 200*
210 to 300*
200
300
Document Scanner 5500 70 to 200
210 to 300
200
300
Document Scanner 7500 70 to 200
210 to 300
200
300
Document Scanner/
Microimager 990
67 to 200 200
* Actual resolution will be rounded to the nearest 10 pixels per inch.
For example, if 67 dpi is requested, the scanner rounds the resolution
to 70 dpi. If 202 dpi is requested, the scanner rounds the resolution
to 200 dpi.
NOTE: An Image Enhancement filter may only be specified when
using a base resolution. If any other resolution is used,
the Image Enhancement filter is automatically set to
option 1 - Halftone Removal (low pass filter).
Refer to Chapter 6,
Scanner-unique Commands
for a description
of the BX/Y/Z command.