Brother DS-600 - Manual (Page 28)

Windows ® Operation
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 If you switch scanners or your image quality has become unsatisfactory, you can re-calibrate your scanner
by choosing the CUSTOM button in DSmobileSCAN II window and select the Calibrate button.
 If you lose the black and white calibration paper that was included with your scanner, you can use any
plain “White” (the brighter the “White” the better) piece of letter size (or A4) printer paper to perform the
calibration. Simply fold the paper in half and insert the end opposite the fold into the scanner first when
calibrating. The following message will be displayed (see below).
Note
When the image quality has become unsatisfactory, we recommend you clean the scanner with the
included cleaning sheet (see Tips & Cautions page) and then recalibrate the scanner.