Xerox Documate 4790 User Guide

							Scanning and Configuring OneTouch
Xerox
® DocuMate® 4790
User’s Guide6-103 –AutoCrop to original—Select this option to let the software automatically determine the size of the 
item being scanned.
–Straighten image—Select this option to have the software automatically determine if a page is skewed, 
then straighten its image. If the page is scanned at too great an angle, the image may not straighten 
correctly. In that case, re-scan the page.
–Auto detect color—Determines if a document contains color or not and produces the appropriate 
scanned image. Typically, Auto Color Detect is used when you have a stack of pages to scan, some color 
and others not. Instead of you having to change the scan settings from Color to Black&White and back 
again, the scanner can choose the correct settings automatically.
–Skip blank originals—Recognizes when a page is blank and removes its image. For instance, if you are 
scanning a stack of pages that includes a blank page, its image will not be included with the other 
images from the stack.
–Rotate image—Select an option in this list to have the final image rotated when scanning is complete. 
–Flip back side—Select this option if you are scanning duplex pages that are calendar style orientation. 
This option will rotate the back side image 180 degrees from the front side.  When scanning in duplex 
mode without this option selected, the back side image of calendar orientation pages will appear upside 
down in the final scan. This option does not automatically determine book page orientation versus 
calendar page orientation.  If you have this option selected when scanning book orientation pages, the 
image for the back side of the page will appear upside down in the final scan.  If you are scanning a 
batch of documents that contain both types of orientation, we recommend that you select Automatic in 
the Rotate image list. 
–Perform edge cleanup—Select this option to have the software remove any thin lines that may be 
around the edges in the scanned image. Edge Cleanup only applies if AutoCrop and AutoDeskew are 
selected so the software can determine where the edges are located. Therefore, selecting Edge Cleanup 
will also select AutoCrop and AutoDeskew. This option is only available when scanning in Black&White.
–Despeckle—Speckles are small spots on an image that the scanner interpreted as a valid part of the 
document. The Despeckle option identifies these spots and removes them. This option is only available 
when scanning in Black&White.
–Color dropout—color dropout is the ability of your scanner to automatically remove a color from a 
scanned image. For example, if you are scanning a letter with a red watermark, you can choose to filter 
out the red so the scanned letter just shows the text and not the red watermark. Color dropout applies to 
Black & White or Grayscale scanning modes.
–Bit depth reduction—Click the drop down menu and select an option from the list. The Bit depth 
reduction options are only available when scanning in black and white.
Error diffusion, Bayer, and Halftone patterns are the intentional application of noise (dithering) in the 
image to help alleviate banding when scanning in binary (black and white) mode. For example, if you 
scan a color photo in black and white, the image file will have large blocks of black and white and the 
image barely recognizable. Dithering the image creates a black and white image that is recognizable.
Dynamic threshold attempts to evaluate the scanned page and automatically adjust the brightness 
and contrast levels to produce the best quality image when scanning in black and white.  
						

							Scanning and Configuring OneTouch
Xerox
® DocuMate® 4790
User’s Guide 6-104 7. Click OK or Apply to add the Acuity options to your scan configuration.
Hardware Properties
1. Right-click on the OneTouch icon and choose Show Hardware from the pop-up menu.
2. The Hardware Properties dialog box opens and shows information about your Xerox scanner.
3. Click the Properties button. 
The Acuity icon on the top of the 
OneTouch Panel and on the scan 
configuration remind you that the 
scan will use the Acuity settings.
The summary of the scan settings  
						

							Scanning and Configuring OneTouch
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® DocuMate® 4790
User’s Guide6-105
Device Settings
Please refer to Device Settings on page 154
Driver Settings
Please refer to Driver Settings on page 156 
						

							Scanning and Configuring OneTouch
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® DocuMate® 4790
User’s Guide 6-106 
						

							Xerox® DocuMate® 4790
User’s Guide7-107
7Scanning from TWAIN 
and WIA
Accessing the Scanner Interface
Every scanning application will access the scanner using a different method. Below is a brief list of common 
applications and how to initiate a scan from within that application, including some of the applications which 
may have been provided with your scanner. Please refer to the application’s user guide for instructions on using 
the application and accessing the scanner.
•Visioneer OneTouch: Open the Visioneer OneTouch properties window and under the configuration list 
select Configure Before Scan. Click on OK to save the changes and close Visioneer OneTouch. The next time 
you scan using that button, the scanner interface will open for you to set the scan options and start scanning.
•Nuance PaperPort: On the toolbar click on the scanner icon to open the scan pane on the left side of the 
PaperPort desktop. Click on the Select... button to open the scanner selection window. Select either the 
TWAIN or WIA driver for your scanner model and then click OK. If you get a message that the scanner is not 
in the PaperPort database, follow the instruction on-screen to run the Scanner Setup Wizard.
•Nuance OmniPage: Go to Tools, then select Options.... Click on the Scanner tab, then click on Setup. Follow 
the instructions on-screen to setup OmniPage to work with the scanner. 
Choosing TWAIN or WIA
A note about your scanner and the TWAIN standard:
TWAIN is a widely recognized standard that computers use to receive images from scanners and digital cameras. 
The TWAIN scanning interface can be accessed from any TWAIN scanning application you have installed on the 
computer. The driver interface described herein is the TWAIN driver that has been developed for your scanner. 
However, there are some applications that have their own TWAIN interface. If you are scanning from a software 
application, and see the interface shown in this section, you can use these instructions to scan with the TWAIN 
interface. If you do not see this TWAIN interface, please refer to your scanning application’s user guide for 
instructions.
A note about your scanner and Microsoft WIA (Windows Image Acquisition):
The WIA platform has been developed to enable image transfer from devices using standard Windows 
applications, such as Paint or Windows Fax and Scan, without the need to install additional scanning software. 
Microsoft has developed its own interface for using the scanner with the Windows applications, as well as any 
other WIA compatible applications you may have installed. However, when using a WIA 2.0 compatible 
application, the default behavior will display the TWAIN interface as described in this document. You can change 
the driver behavior to show the Windows interface instead of the custom interface described herein. Please refer 
to Driver Settings for the Hardware Properties and Interface Behavior on page 154 for more information.  
						

							Scanning from TWAIN and WIA
Xerox
® DocuMate® 4790
User’s Guide 7-108 Please refer to your Windows documentation for WIA scanning instructions if you do not see the interface 
described below, or if you have any questions regarding Windows scanning applications. 
Scanning
Some features described herein may not be available for the current scanner. Please disregard any information 
about features that you do not see in the interface for your scanner.
Note: Visioneer Acuity must be installed for the image processing options, described in this document, to be 
available in the interface for your scanner. Only features that are appropriate for your scanner will be enabled 
after Visioneer Acuity is installed. Visioneer Acuity is automatically installed when you install the scanner driver 
from the installation disc. If you downloaded the scanner driver from our website, make sure you also download 
and install Visioneer Acuity.
1. Load the document(s) in the scanner.
2. Adjust the settings in the interface for the item you are scanning.
3. Click on the Scan button.
4. When scanning is complete, click Done to close the interface.
5. The scanned images are now in the scanning application.
Te c h n i c a l  N o t e :  
Some scanners have the option to change the background color between black and white.  Below is a list of some 
of the scanning options that may be disabled based on the current background color:
•Fill Margin Holes
•Automatic Image Cropping (Crop to original)
•Straighten Image 
						

							Scanning from TWAIN and WIA
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® DocuMate® 4790
User’s Guide7-109
Locked Scanning Interface
If you see this locked version of the scanner’s interface you will be able to select a predefined scanning profile 
from the Presets list, and then click the Scan button to start scanning.
Yo u  c a n  a l s o  c l i c k  o n  t h e  Preview button to open the preview dialogue for you to scan a preview image and set 
custom scan regions.
Note: You can lock or unlock the scanner’s interface from the driver configuration options for your scanner. The 
instructions for changing this setting are in the Driver Settings section of this guide. If you are unable to change 
this setting the option may have been set by your system administrator. Please contact your system 
administrator for more information.
Using the Preview Window
Clicking the Preview button will display the preview window for the scanner interface. Use the preview option if 
you want to scan and display a sample image that reflects the current settings in the main interface. After the 
preview is displayed, you can then adjust the settings in the main interface until you are happy with how the 
sample image looks. The preview window is also where you can define custom scan regions. Please refer to Scan 
Regions for instructions on creating and scanning custom regions.
To use the preview window:
1. Select the initial scan settings you want to use for the preview image and scanning.
If you want to modify the settings for a particular preset, make sure you select that preset before continuing. 
						

							Scanning from TWAIN and WIA
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® DocuMate® 4790
User’s Guide 7-110 2. The preview window displays the scan area and the current scan region. This scan region reflects the paper 
size currently selected in the main interface. When you pass the mouse cursor over the scan region it will 
highlight for you to move or resize it. If you move, resize, or add scan regions the main interface will display 
User defined for the page size. Please refer to Scan Regions for instructions on creating, resizing and deleting 
regions.
Click the zoom in or zoom out button to zoom in or out on the preview image in 15% steps.  Click the up or 
down arrows for the Zoom level box to zoom in or out on the preview image in 5% steps.  Click the zoom to 
fit button to fit the entire preview area within the preview window. 
						

							Scanning from TWAIN and WIA
Xerox
® DocuMate® 4790
User’s Guide7-111 3. Click Show main UI to bring the main scanner interface in front of the preview window for you to adjust the 
scan settings. 
There are some settings in the main interface, such as brightness and contrast, which will immediately 
update the preview image after you adjust the setting. Other settings, such as changing from color scanning 
to black and white scanning, will not automatically update the sample image.
If you select any of the document image adjustment options, such as an option to automatically crop, 
straighten or rotate an image, it will not show in the sample image preview. The preview window displays an 
unaltered view of the item size and position in the scanner. Any document image adjustment options will be 
used while scanning and saving images.
4. After you adjust the scan settings, click Refresh preview to get a new sample image that reflects the most 
current settings in the main interface.
5. When you are happy with the sample image, you can click Scan in the preview window or in the main 
interface to scan and save the image with the current scan settings. 
						

							Scanning from TWAIN and WIA
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® DocuMate® 4790
User’s Guide 7-112 When you scan, any settings you adjusted are automatically saved to the Last used settings preset.  These 
settings are not retained in a preset until you click Save in the main interface to save the settings to the current 
preset, or save them to a new preset using the Save as dialogue.  If you select a different preset from the Presets 
list before scanning, the changes you made will be discarded.
Scan Regions
You can use the preview window to create custom scan regions for the scanner to use for scanning. For example, 
if you want to scan only a specific area of the image, you can move and resize a scan region to focus only on the 
area you want to scan. The final image will be only the size of the region you set.
Important: do not change the page size for the scanned image after you create custom regions. When you have 
set a custom region in the preview window, the page size field will display “user defined” indicating you have 
specified one or more custom regions for scanning. Changing the page size after you create a custom region 
discards the custom regions and sets a single scan region to the size you selected in the page size list.
Creating custom scan regions:
1. Select the preset you want to use for scanning.
2. In the main interface click Preview to open the preview window.
If no previous custom scan regions have been created for the preset you selected, the preview window will 
have a single scan region that is the page size for the current preset. This region will be labeled number 1 and 
be displayed as an outline in the preview area.
3. Place an item in the scanner and then click Get preview.
4. The scanner scans and displays a sample image.