Microsoft 9.19 User Manual

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67 
 
4.7.7  Compression 
Click this tab and mark the check box to enable or disable JPEG compression for data 
transfer from the image scanner. (This function is available only for Color or Grayscale 
scans.) 
This function cannot be used when [Double-page spread] is selected. (V9.21) 
Depending on the scan settings and the scanner model, this function is also enabled when 
"Black & White" or "Halftone" is specified for [Image Mode].  
 
Figure Option dialog (Compression)  
 
♦ JPEG 
Transfer 
Converts scanned image data into JPEG format for transfer. Because of smaller data size, 
data transfer time is shorter than that of ordinary method (when the check box is not 
marked).  
 
♦ Jpeg 
Quality 
Specifies data compression rate for JPEG transfer. Increase the value when you prefer to 
get finer image quality, otherwise decrease the value for smaller data size. 
 
Note. 
・ 
Image quality may deteriorate due to scanning with JPEG compression. 
・ 
When JPEG compression is enabled, lengths and widths of images may slightly be 
different from that of the scans without JPEG compression.  
・ 
This function may not be available for some image scanner models.