Appendix A
85
A
Scanner
1
Windows
®
XP in this User’s Guide includes Windows
®
XP Home Edition and Windows
®
XP Professional.
2
For the latest driver updates for the Mac OS X you are using, visit us at http://solutions.brother.com/ and click “Downloads” from your model page.
DS-820W
DS-920DW
Color / Black
Yes / Yes
Duplex Scan
No
Yes
TWAIN Compliant
Windows
®
Windows
®
XP
®
/ Windows
®
7 / Windows
®
8
Macintosh
Mac OS X 10.6.x, 10.7.x, 10.8.x
Color Depth
Input
48 bit color Processing
Output
24 bit color Processing
Resolution
Optical
Up to 600 ×
600 dpi
Interpolated
1200 dpi
Scanning Width
Up to 8.5 in. (216 mm)
Gray Scale
Input
16 bit
Output
8 bit
Scanning Max. Speed
Mono 8.0 ppm (7.5 seconds (Letter) up to 300 dpi)
7.5 ppm (8 seconds (A4) up to 300 dpi)
4.3 ppm (14.1 seconds (Letter) above 400 dpi)
4 ppm (15 seconds (A4) above 400 dpi)
Color 8.0 ppm (7.5 seconds (Letter) up to 300 dpi)
7.5 ppm (8 seconds (A4) up to 300 dpi)
4.3 ppm (14.1 seconds (Letter) above 400 dpi)
4 ppm (15 seconds (A4) above 400 dpi)
Duplex Scanning Max. Speed
-
Mono 5.3 ppm (11.3 seconds
(Letter) up to 300 dpi)
5 ppm (12 seconds (A4) up
to 300 dpi)
3 ppm (19.8 seconds (Let-
ter) above 400 dpi)
2.9 ppm (21 seconds (A4)
above 400 dpi)
Color 5.3 ppm (11.3 seconds
(Letter) up to 300 dpi)
5 ppm (12 seconds (A4) up
to 300 dpi)
3 ppm (19.8 seconds (Let-
ter) above 400 dpi)
2.9 ppm (21 seconds (A4)
above 400 dpi)