Acer S2W 3300U Service Manual - Page 57

Windows NT doesn't support USB. Q: What is the proper resolution setting? A: For output purpose, the resolution setting is depends on the output printing device. (1) Continuous tone color printer (such as dye-sublimation printer) The scanning resolution should be set the same as the resolution of the printer. (2) Halftone printer (such as laser or inkjet printer) The scanning resolution dependent on both the gray level you want and the resolution of the printer. The general idea is: Scanning Resolution = the resolution of the printer / 2 For instance, to print the scanned image on a 360-dpi inkjet printer, the scanning resolution should be set as be 180 dpi ( 180 = 360 /2 ). To scan at higher resolution than the proper value does not do any good to the image quality but only waste time and storage space. Q: What if there are unwanted color lines on the scanned image or the image is always blurry? A: (1) Please make sure that the scanning windows is clean. (2) Try to use the most update MiraScan driver. The web site is http://www.acercm.com.au/service/index.htm http://www.acercm-eu.com/downloads/index.cfm http://www.acercm.com.tw/global/service/scan/drivers.htm http://www.acercm.com/drivers/imaging_drivers.html (3) If the above two options can't solve the problem, the scan module may be damaged during the shipping. Please contact the local dealer or supplier for the repair.