User manual AVISION AV220D2

[. . . ] Sheet-fed Duplex Scanner User's Manual Regulatory model: FF-0901H Avision Inc. Trademarks Microsoft is a U. S. IBM, IBM PC are registered trademarks of International Business Machines Corp. Other brands and product names herein are trademarks or registered trademarks of their respective holders. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual, or otherwise, without the prior written permission of Avision Inc. [. . . ] If your image contains red color watermark or background, choose the R (Red) channel then any red watermark or background will be removed. This feature is used to sharpen your text when using OCR (Optical Character Recognition) software. The "Custom" option allows you to specify your desired color to be removed by entering its RGB (Red, Green, and Blue) value respectively. Tolerance: Specify the allowable color range to be removed for the color you selected. Specified range: 1 ~ 100 The large the numeric value, the wider the color dropout range is. Note that this function supports only black & white and gray images. Therefore, be sure to choose any black & white or gray image type while applying this function. 4-25 The Color Dropout dialog box 4-26 User's Manual 4. 4. 2 Other Color Dropout Options Advanced Processing provides two options that can adjust your scanned image in the best optimal result. Filter Threshold This value is used to determine the color which will be dropped out. A lower value will drop more of the selected color out, while a higher value will leave more of the selected color in. The pixel which is higher than the background value will be adjusted to the lightest point. Adjust the value for both the Filter Threshold and Background Level to produce the best optimal result. Background Level Example, slightly adjusting the background value makes your text more clear. Original 4-27 Remove Blue, Threshold: 20, Background: 255 Remove Blue, Threshold: 20, Background Level: 210 4-28 User's Manual 4. 5 The Paper Tab The Paper tab allows you to define values relating to image output (i. e. , Auto Crop or not, Scan Area, OverScan, Multi-Feed Detection). The Paper tab dialog box 4-29 4. 5. 1 Cropping Cropping allows you to capture a portion of the document being scanned. Options Automatic Description Automatic adjusts the cropping window according to different document sizes. If you select this option, you can use the arrow keys to define the x and y offset values, width and length to redefine your scanned area. The Display window will show image placement as you change the values. If you select this option, you can use the arrow keys to define the x and y offset values, width and length to redefine your scanned area. The Display window will show image placement as you change the values. Fixed to Transport EOP (End of Page) Detection 4-30 User's Manual The following options are only available when Fixed to Transport is selected. X-Offset -- the distance from the left end of the scanner to the left edge of the scanning area. Y-Offset -- the position from the top end of the document to the top end of the scanning area. Center: automatically calculates the x-offset for centerfed feeding based upon document size selected. -- relocate the scan area by click the arrow key on the cross sign while retain the scan size. View the result from the Display window. 4-31 4. 5. 2 Other Paper Selection Deskew Use this option to automatically deskew a document. Note: If the skew angle is too great, some of the image may be cut off. Scan Area Choose your desired paper size with the drop-down list box. Or you may select a custom paper size by clicking the Scan Area box and then click Add to include in the choice. [. . . ] (95%) Wipe the glass and the white area as illustrated in below by moving the swab from side to side to rid the dust or dirt. Glass 7-2 User's Manual 7. 3 Replacing the Snap-in Pad Module After scanning approximately 20, 000 pages through the ADF, the pad may be worn out and you may experience problems with document feeding. In this case, it is highly recommended to replace the pad module with a new one. For ordering the pad module, please consult your nearest dealer and follow the procedure below to replace it. Press both arms of the ADF snap-in pad module inwardly with your fingers to pull out the ADF snap-in pad module. Assembling Procedure 1. [. . . ]