Oki MC780f MC770/780 User Guide - Advanced - Page 184
Erasing black frames around images, Adjusting exposure, Adjusting contrast, RANGE ADJUSTMENT
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USEFUL FUNCTIONS [OFF] - Select this option when you want to disable the feature and include blank pages in your scans. 1 Note • The equipment may not detect blank pages correctly in the following cases: • The original consists of half-tone pages. • Pages contain small text/images, such as a page number printed on a blank page. Erasing black frames around images 2 You may want to scan originals with the original cover left open especially when they are as small as a drivers license or as thick a book as a dictionary. In this case, the open cover admits light to the Original Glass surface, producing a scan image with a black outer frame. This black frame can be erased using the Outside Erase feature. 3 • The feature may not produce an appropriate output when your original contains a concave shaped image with a dent. • The margins may not be erased correctly under the following conditions: - Light intrudes into the margin area of the original placed on the Original Glass. - Hands or fingers holding the original on the Original Glass are scanned. Adjusting exposure Use and to select the preferable exposure setting from 11 levels. If [AUTO] is selected, the automatic exposure adjustment feature is enabled, automatically setting the exposure best suited to your originals. 4 Adjusting contrast Use and 9 levels. to select the preferable contrast setting from 5 [ON] - Select this option to enable the Outside Erase feature. Pressing the button makes the Range Adjustment slider available. [OFF] - Select this option to disable the Outside Erase feature. 6 RANGE ADJUSTMENT - Use and to select the appropriate sensitivity from 7 levels to detect the boundary between the image and outer frame. The higher the level, the more area is erased. Memo • The sensitivity level for detecting images and the outer 7 frame can be changed for each job using the control panel. Note • The contrast setting is available only when [FULL COLOR] or [AUTO COLOR] is selected for the color mode setting. Note • Regardless of the settings, this feature is disabled under the following conditions: - The Document Cover is closed at the time of scanning. - The originals are scanned from the Reversing Automatic Document Feeder. • Set the appropriate exposure manually. Enabling Outside Erase cancels the automatic exposure adjustment feature. P.184 "Adjusting exposure" - 184 -