Xerox DocuMate 4799 Manuel - Page 16
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Également pour Xerox DocuMate 4799 : Caractéristiques Manuel (26 pages), Mise en place (6 pages)
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Performance and Image Quality
Other factors, such as the color depth and resolution (dpi – dots per inch) of the scanned
image, as well as the scanning interface itself, also contribute to the overall speed of the
scanner. The Reference Scanner was connected to the FreeFlow Makeready PC via an Ultra-
Wide SCSI interface, which provides the best performance especially for high volume scanning
operations (large data). The Xerox DocuMate 4799 utilizes a Hi-speed USB 2.0 interface, which
offers plug-and-play convenience and is more widely used in the industry today.
FreeFlow Makeready allows customers to scan black and white or color documents and save
them as RDO (Raster Document Object) or Adobe PDF (Portable Document Format) files.
Makeready provides two options for saving scanned documents as PDFs: a Xerox option and
an Acrobat (Distiller) option. Both options produce an Adobe PDF file, however, the resulting
file size may vary depending on the option selected and/or the scanner driver.
Performance at a Glance
Scan Speeds (20 page, 8.5" x 11" landscape document at 600 dpi)
Simplex
Black & White
Duplex
File Size
1
Simplex
Grayscale
Duplex
File Size
Color
Simplex
Duplex
File Size
Overall
Fair
Good
Very Good
1
In order to simulate grayscale (8 bits per pixel), the Reference Scanner captures halftone
images at 1 bit per pixel (black and white) and renders them using halftone screening. Refer to
Image Quality for more information
3-2
Xerox® DocuMate® 4799 and 4790
Reference Scanner
Performance and Image Quality Expectations Guide
Xerox DocuMate 4799