Fujitsu fi-4860C Operator's Manual page 149

(* 1) If Binary mode is used, the scanned image of photograph may not be good.
Depending on the applications used, the method to specify "Photo" mode and the
name of the mode can be different. If the application allows you to change the
setting from FJTWAIN [TWAIN driver] dialog box, specify [Halftone], [Gray scale] or
[24bit Color] for Image Mode. In [Halftone] mode, you have to specify Dither pattern.
(* 2) For the details of cleaning, refer to "Chapter 3 DAILY CARE" on page 41.
(* 3) For the details on how to replace Lamps, refer to "Chapter 4 REPLACING
CONSUMABLES" on page 89.
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5.2 Troubleshooting
Continued from the previous page
Contact an authorized FUJITSU
Scanner service provider.