Fujitsu fi-8190 Operator's Manual page 192

Example
When an A5 size image is printed on an A4 size document and [A4] is specified for [Paper Size] in the
scanner driver.
→An A5 size image is pasted in the center of an A4 size blank image.
● When [Automatic] is specified for [Paper Size] in the scanner driver, the most suitable size is selected from
standard sizes which can be specified for [Paper Size]. Note that the size of the image may become smaller
than the original document depending on the document scanned, or part of the image may appear missing.
Example
When an A5 size image is printed in the center of an A4 size document
→The image is output in A5 size.
To output the scanned image in the actual size of the document, specify the document size for [Paper size].
192
Various Ways to Scan