Kodak I780 - Document Scanner User manual

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1 Introduction
The Kodak i600/i700 Series Scanners are high-volume production
scanners which includes image processing technology that can
improve image quality and sometimes make the reproduction better
than the original.
You can use the ISIS Driver or TWAIN Datasource (both are available
on the CD that is included with the scanner).
Other popular scanning applications are also compatible with these
scanners, however these applications may not be able to access all of
the image processing options. Please refer to your vendor’s
documentation for specific information.
The Kodak i600/i700 Series Scanners provide both color/grayscale and
black and white scanning simultaneously with throughput speeds
ranging from 80 to 130 ppm.
About this manual This manual provides the following:
Chapter 1, Introduction includes a brief summary of the Kodak i600/
i700 Series Scanners.
Chapter 2, Best Practices includes information to use when setting up
applications, recommendations on how to handle jam recoveries,
image addressing information, controlling print streams, electronic color
dropout and much more.
Chapter 3, Using the TWAIN Datasource includes information on using
the dialog boxes presented by the TWAIN Datasource and an
explanation of the fields on each tab.
Chapter 4, Using the ISIS Driver includes information on using the tabs
presented by the ISIS driver and an explanation of fields on each tab.
Appendix A, TWAIN Image Processing Terminology — the TWAIN
Datasource for the Kodak i600/i700 Series Scanners has been updated
to include new terminology for traditional Kodak image processing
functions. See this appendix for a comparative chart to map between
terms.
NOTE: The scanned images used in this guide were selected for the
challenges presented to a typical scanner due to the low-
contrast characteristics of the images.

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Image outputs The i600/i700 Series Scanners are duplex scanners. This means both
the front and the rear side of each document may be captured. For
each side captured, the scanner creates a black and white and color/
grayscale image. The host application controls which of these images is
transferred to the host to be stored as an image file.
The Kodak i600/i700 Series Scanners can return black and white,
grayscale or color* images to the host. Below is a description of the
valid combinations.
•Front black and white: FB.tif. This image file represents the
contents of the front side of the document using 1-bit per pixel.
•Front color: FC.jpg. This image file represents the contents of the
front side of the document using 24-bits per pixel.
•Back black and white: BB.tif. This image file represents the
contents of the rear side of the document using 1-bit per pixel.
•Back color: BC.jpg. This image file represents the contents of the
rear side of the document using 24-bits per pixel.
NOTE: Actual file formats are determined by the host application.
These image files can be controlled through the application
independently.
FB.tif
(front black and white)
FC.jpg
(front color)
BB.tif
(back black and white)
BC.jpg
(back color)

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Another example of a simultaneous output where all four images are
returned to the host would create the following four files:
•Front grayscale: FG.jpg. This image file represents the contents of
the front side of the document using 8-bits per pixel.
•Front black and white: FB.tif. This image file represents the
contents of the front side of the document using 1-bit per pixel.
•Back grayscale: BG.jpg. This image file represents the contents of
the rear side of the document using 8-bits per pixel.
•Back black and white: BB.tif. This image file represents the
contents of the rear side of the document using 1-bit per pixel.
NOTE: Actual file formats are determined by the host application.
These image files can be controlled through the application
independently.
*The Kodak i610 Scanner only returns black and white/grayscale images.
FG.jpg
(front grayscale)
FB.tif
(front black and white)
BG.jpg
(back grayscale)
BB.tif
(back black and white)

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2 Best Practices
This chapter provides you with recommendations for program logic,
which will allow you to interact efficiently with the i600/i700 Series
Scanners. This high-level information is not intended to be used as a
coding guide. The following information is provided in this chapter:
• Basic image capture
• Switching between color/grayscale and black and white
• Jam recovery
• Image file storage locations
• Bar code recognition
• Controlling print strings
• Electronic color dropout (form design, drop-out colors)
• Available image header information and its uses
• Zone processing (recombining images, especially for viewing)
NOTE: The term host in the sections that follow refers to either the
driver or application.
Basic image capture Basic image capture is a high-level logic flow for retrieving images from
the scanner.
Follow this sequence to scan documents:
• set up the scanner,
• enable scanning,
• initiate polling,
• feed documents,
• and disable scanning.

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Scanner setup To set up the scanner:
1. Set up your scanner operating conditions:
• simplex/duplex
• image order
• transport timeout
• transport timeout response
• length detection status and response
• multi-feed detection status and response
• starting document count
• Energy Star timeout
• printing parameters (printing status, print font, orientation and
strings)
• confirmation tone
For information on programming these conditions, see Chapters 3
or 4 (depending on your driver). For other vendor tool kits, refer to
their documentation.
2. Determine if any changes to the image processing parameters need
to be made for the current application.
NOTE: This check needs to occur for up to four separate images
from the six available options depending on your
application: Front Color, Front Black and white, Front
Grayscale, Rear Color, Rear Black and white, Rear
Grayscale.
Image Processing parameter changes remain in effect until one of
the following conditions occur:
• The scanner is powered down using the power switch.
• New imaging parameters are sent from the host.
3. Prepare documents according to the instructions found in the Kodak
i600/i700 Series Scanners User’s Guide.

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Enable scanning The host must issue a Scan command to enable scanning before
documents can be transported through the scanner. If scanning has not
been enabled, the feeder and transport system will not turn on.
Initiate polling Initiate host system polling of the scanner to ensure scanned document
images are transferred from the image buffer to the host system.
Polling should continue until scanning is disabled.
For more information see the sections entitled, “Controlling image
transfer order” and “Image header information” later in this chapter.
Feed documents Feed documents according to the instructions found in the Kodak i600/
i700 Series Scanners User’s Guide.
Disable scanning Scanning is disabled to allow the host to download configuration/setup
changes between jobs and to handle certain types of errors.
Scanning is also disabled when one of the following conditions occur:
• The scanner is first powered on using the power switch.
• A 1394 bus device Reset command is executed.
• A scanner unique End-of-Job command is issued by the host
computer.
• Transport timeout is set to End-of-Job.
• An error occurs requiring fault recovery.
NOTE: When scanning is disabled, documents cannot be scanned until
the host enables scanning.
Error handling The scanner recognizes and reports a variety of error conditions.
Some errors are reported to the host (via the 1394 interface) or via the
LEDs on the scanner while others are reported to both the host and the
LEDs.
An error (via the 1394 interface) is defined as either a current or
deferred error.
A current error results from a problem in processing the current scanner
command. This can include sending an invalid command, trying to read
from an empty image buffer, or an end-of-job condition. Since one or
more errors may be pending at any time, current errors are reported
first.
A deferred error results from an error condition within the scanner, such
as a document jam. Deferred errors are reported after current errors.
NOTE: Low-level 1394 commands and information are handled by the
device driver. The following information is provided for reference
only.

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Some error conditions disable scanning and cause the document
transport to stop. This is done to prevent additional images from
entering the image buffer while allowing the host to perform fault
recovery activities.
NOTE: The scanner cannot determine exactly which images were
affected by the error and which images were not.
If an error occurs that disables the scanner, the host can continue to
read images from the image buffer without enabling the scanner.
However, when the image buffer has been emptied, an error will be
generated indicating fault recovery is required. This differentiates
between an end-of-job disable and a disable caused by an error. The
operator may continue scanning documents after the host enables the
scanner.
Controlling image
transfer order
This section provides job stream examples which can be used in
scanning applications.
The host application is responsible for determining the order in which
the scanner returns images. Front images must always be retrieved
before rear images.
Black and white only -
duplex
This job stream is available for all i600/i700 Series Scanners.
1. Prepare documents.
2. Start the scanner to do black and white duplex scanning (front black
and white and rear black and white).
3. Setup the scanner to retrieve black and white images.
4. Enable the scanner and start polling.
Loop
Read front black and white image header
Read front black and white image
Read rear black and white image header
Read rear black and white image
End loop

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Color only - duplex This job stream is available for i620, i640, i660 and i780 Scanners.
1. Prepare documents.
2. Start the scanner to do color duplex scanning (front color and rear
color).
3. Setup the scanner to retrieve color images.
4. Enable the scanner and start polling.
Loop
Read front color image header
Read front color image
Read rear color image header
Read rear color image
End loop
Grayscale only - duplex This job stream is available for all i600/i700 Series Scanners.
1. Prepare documents.
2. Start the scanner to do grayscale duplex scanning (front grayscale
and rear grayscale).
3. Setup the scanner to retrieve grayscale images.
4. Enable the scanner and start polling.
Loop
Read front grayscale image header
Read front grayscale image
Read rear grayscale image header
Read rear grayscale image
End loop

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Dual stream - black and
white and color - duplex
This job stream is available for i620, i640, i660 and i780 Scanners.
1. Prepare documents.
2. Start the scanner to do dual stream duplex scanning by selecting
front black and white, front color, rear black and white and rear
color.
3. Setup the scanner to retrieve black and white images first.
4. Enable the scanner and start polling.
Loop
Read front black and white image header
Read front black and white image
Read front color image header
Read front color image
Read rear black and white image header
Read rear black and white image
Read rear color image header
Read rear color image
End loop
Dual stream - black and
white and grayscale -
duplex
This job stream is available for all i600/i700 Series Scanners.
1. Prepare documents.
2. Start the scanner to do dual stream duplex scanning by selecting
front black and white, front grayscale, rear black and white and rear
grayscale.
3. Setup the scanner to retrieve black and white images first.
4. Enable the scanner and start polling.
Loop
Read front black and white image header
Read front black and white image
Read front grayscale image header
Read front grayscale image
Read rear black and white image header
Read rear black and white image
Read rear grayscale image header
Read rear grayscale image
End loop

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Single-stream duplex
alternating between black
and white and color/
grayscale (Toggle patch)
This job stream is available for i620, i640, i660 and i780 Scanners. For
the i610 Scanner, you can only toggle between black and white and
grayscale.
1. Prepare documents with a Type 4/Toggle patch before and after any
color/grayscale documents.
2. Configure image processing parameters for all four images. Before
enabling the scanner, select only the front and rear black and white
images to be retrieved.
3. Select One - based on Toggle Patch on the Advanced tab
(TWAIN) or In the images per side drop-down box on the Image
Processing tab (ISIS).
4. Start scanning.
Images begin in black and white and will change to color/grayscale
when the first toggle patch is detected. Images remain in color/
grayscale until the next toggle patch is detected. Images of the toggle
patch sheets will not be returned to the host.
Single-stream duplex
alternating between
black and white and
color/grayscale using
automatic color
detection
This job stream is available for i620, i640, i660 and i780 Scanners. For
the i610 Scanner, you can only toggle between black and white and
grayscale.
1. Configure image processing parameters for all four images. Before
initiating the scanner, select only the front and rear black and white
images to be retrieved.
2. Enable Auto Color Detection by choosing Low, Medium, High or
Custom.
3. Start scanning.
The scanner will determine if it should return a black and white or color/
grayscale image based on a document-by-document analysis of the
color content.

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Jam and fault
recovery
This section provides recommendations for application logic associated
with scanner jam and fault recovery.
If your scanner is enabled and you are polling when a document jam or
other fault occurs, use the following procedure to restart scanning.
IMPORTANT: Before beginning fault recovery, make sure all the
headers and images have been transferred from the
image buffer to the host system.
When a document jam or other fault occurs, the feeder and the
transport will stop and the scanner will be disabled.
1. When all images have been retrieved from the scanner (image
buffer empty), display the last image retrieved for operator viewing.
2. Use the image header of the last image retrieved to determine
sequential counter.
3. Use the information above +1 to seed the sequential counter before
re-enabling the scanner.
4. Instruct the operator to sort through the stack of documents being
scanned to find the document that produced the last successfully
scanned image. They must rescan all of the documents that follow
the last successfully scanned document.
5. Enable the scanner.
Image file storage
locations
This section provides general recommendations regarding the impact
of image file storage locations on the overall throughput of the scanner.
You can receive up to four image files per document. Decisions about
where to write these files when retrieving them from the scanner could
impact the overall throughput of the scanner. In order to prevent
overwriting data the scanner stops feeding paper when the internal
image buffer is almost full. Scanning will not resume until enough
images are retrieved by the host to clear sufficient buffer memory. In
order to minimize the number of times this condition might occur, it is
recommended that image files are written to a local hard drive in order
to avoid the potential overhead of transferring files across the network
to remote drives during scanning.

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Bar code recognition The i600/i700 Series Scanners do not include a bar code accessory.
Your capture application (e.g., Kodak Capture Software) may provide
bar code functionality. The main imaging parameter, which may effect
bar code read rates, is resolution. Either black and white, grayscale or
color images may be used for bar code applications. Refer to your
software documentation for their recommendations and/or
requirements for image quality to achieve desired read rates.
Controlling print strings Full control and access to the scanner’s print string functionality is
available to the host application. In addition, the print string information
is returned to the host in the image header.
Print string formatting • Maximum character length 40.
• Character set full alphanumeric, including special characters.
• Distance from lead edge a minimum of a .035-inch.
• Can print to within ½-inch of the trial edge.
Electronic color
dropout
The i600/i700 Series Scanners provide the ability to create dropout
images without changing lamps. Red, green, blue dropout functionality
can be selected. Only one color can be dropped out at a time. This
dropout performance is equivalent to color dropout functionality when
using the traditional color lamp technique.
Electronic color dropout is used with OCR and ICR applications. See
your vendor’s documentation for recommendations on image quality
characteristics.
Electronic color dropout is applied to the black and white image only.
There are four imaging parameters, which effect electronic color
dropout: Threshold Value/Filter Threshold, Background Value/
Background, Contrast %, and Threshold. The default settings are:
Contrast% = 0
Threshold = 90
Color Filter = 175
Background = 245 this value should be set to match background
color of your document.
If the values above do not give you the desired results, you may need to
vary these values accordingly.

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Red dropout Following is a list of Pantone colors which may be used with the red
dropout option.
Red Dropout — Complete Dropout.
Red Dropout Near Complete Dropout
100U 129U 155U 177U 1925U 231U 372U
101U 130U 156U 178U 196U 232U 379U
102U 134U 157U Warm Red 197U Rhodamine
Red U
380U
Yellow U 135U 158U 1765U 198U 236U 386U
106U 136U 1555U 1767U 199U 237U 387U
107U 137U 1565U 1775U 203U 238U 393U
108U 1345U 1575U 1777U 204U 239U 394U
109U 1355U 1585U 1785U 205U 2365U 395U
113U 1365U 162U 1787U 206U 2375U 3935U
114U 1375U 163U 1788U 210U 2385U 3945U
115U 141U 164U Red 032 U 211U 2395U 3945U
116U 142U 165U 182U 212U 243U 3965U
120U 143U 1625U 183U 213U 244U
121U 144U 1635U 184U 217U 245U
122U 148U 1645U 185U 218U 246U
123U 149U 1655U 189U 219U 250U
1205U 150U 1665U 190U Rubine
Red U
251U
1215U 151U 169U 191U 223U 252U
1225U 1485U 170U 192U 224U 256U
1235U 1495U 171U 1895U 225U 2562U
127U 1505U 172U 1905U 226U 263U
128U Orange
021 U
176U 1915U 230U 2706U
Purple U 2635U

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Green Dropout Complete Dropout
Green Dropout Near Complete Dropout
Blue Dropout Complete Dropout
Blue Dropout Near Complete Dropout
100U 113U 1345U 3375U 374U 387U 3935U
101U 114U 155U 351U 375U 388U 3945U
102U 120U 2706U 352U 379U 389U 3955U
Yellow U 1205U 317U 365U 380U 393U 3965U
106U 1215U 3245U 366U 381U 394U
107U 127U 331U 372U 382U 395U
108U 134U 332U 373U 386U 396U
121U 2975U 318U 324U 3242 344U 358U
148U 304U
100U 256U 2716U 284U 298U 311U 3242U
1205U 2562U 2707U 290U 2975U 312U 3252U
217U 263U 2717U 291U 2985U 3105U 3245U
230U 264U 2708U 292U 2995U 3115U 3255U
2365U 2635U 277U 2905U 304U 317U 331U
243U 2645U 278U 2915U 305U 318U 332U
244U 270U 279u 2925U 306U 319U 393U
250U 2705U 283u 297U 310U 324U 3935U
251U 2706u
101U 236U 299U

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Image header
information
An image header is associated with every image captured by the
scanner. Following is a list of information available in the image header.
Image length size of the image.
Image identifier indicates whether the image is front black and
white, rear black and white, front color or rear color.
Resolution the scanner records the selected scanner image
resolution in dots per inch.
X-axis upper left pixel horizontal offset to upper left corner of the
image. For more information, see the next section entitled, “Zone
processing”.
Y axis upper left pixel vertical offset to upper left corner of the
image. For more information, see the next section entitled, “Zone
processing”.
Width the scanner records the number of pixels-per-line in the
image. Width is also referred to as line length.
Length the scanner records the lines-per-page in the image. Length
is also referred to as page length.
Bits-per-pixel bits-per-pixel can equal 1 for black and white
imaging. 8 for grayscale or 24 for color imaging. Bits-per-pixel is also
referred to as pixel depth.
Compression type the scanner records the compression type used.
Values for black and white images are: No Compression, Group III,
Group III 2D or Group IV. The values for grayscale or color images are
No Compression or JPEG.
Polarity the scanner records image polarity. White pixels can be
indicated as 0 or 1.
Multifeed — indicates whether or not a multifeed was detected when
the image was scanned. This information can be used by the host to
assist operators during error recovery.
Deskew enabled — a flag in the image header reflects whether the
scanner was asked to perform deskew. If deskew is enabled, the image
header also indicates whether or not the document was deskewed.
Deskewed a flag the image header indicates whether or not the
image was deskewed.
Skew angle image header records the skew angle which was
determined for the scanned image. A severe skew angle may result in
no deskew being performed. If the scanner is unable to determine a
skew angle, the image will not be deskewed. The skew angle field of
the image header will be set to 0.
Print string the actual character string printed on the document is
returned in the image header. This string may be up to 40 characters in
length. Print strings are defined in the host application.
Sequential counter the scanner assigns a unique Sequential ID
Number to each document which is returned in the image header. The
host application controls the setting of the starting value for this counter.

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Patch Detect indicates whether or not the scanner detected a toggle
patch on the document (side independent). If a toggle patch appears on
a document, all images created from this document will have this
indicator set in the image header.
Toggle Patch indicates the side of the document where the toggle
patch was detected. If a toggle patch appears on a document, only the
images created from the side of the document containing the patch will
have this indicator set in the image header.
Zone processing Some applications have a requirement to store part of an image in color
or grayscale and the rest of the image in black and white format (this
saves storage space by not storing the entire image in color or
grayscale). Zone processing is a fixed crop window (the zone) located
relative to the upper left corner of a document. It allows the operator to
select via the host application an area on the document to be delivered
in color, grayscale or black and white format (a separate window for
both black and white and color/grayscale may be defined). Different
zones may be selected for both the front and rear of the image.
This feature may be used in conjunction with auto cropping. Following
is an example of producing a color zone.
Original
Black and white image Relative Cropping

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1. Prepare documents.
2. Start the scanner to do dual stream simplex scanning (front black
and white and front color).
3. Setup the scanner to retrieve black and white images first.
4. Setup front black and white to be auto cropping.
5. Setup front color to be relative cropping.
6. Enable the scanner and start polling.
Loop
Read front black and white image header
Read front black and white image (will return full image)
Read front color image header
Read front color image (will return only the color zone)
End loop

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3 Using the TWAIN Datasource
Installation The TWAIN Datasource is included with the scanner. You can install
the Datasource from the CD.
1. Insert the CD into the drive.
2. If auto-run is not enabled, double-click the setup.exe file.
3. Follow the instructions on each screen as prompted.
After installation is complete, install your application software on the
host PC.
A sample application called the Scan Validation Tool is also provided
as part of this installation. This application can be used to validate
scanner functionality. The screen shots in this chapter (from the Scan
Validation Tool) document the TWAIN Datasource graphical user
interface (GUI) which can be one option when creating your own
Setting Shortcut.
Overview All Kodak Scanners have the capability of providing a wide variety of
electronic images. This can be accomplished by using the provided
TWAIN Datasource in concert with your scanning application. The
TWAIN Datasource is the part of the capture system which links the
scanner to your scanning application.
When using the TWAIN Datasource, the main Kodak Scanner window
will display a list of Setting Shortcuts. Each Setting Shortcut is a group
of specific image and device settings. The supplied Setting Shortcuts
represent some common electronic image outputs. If none of the
Setting Shortcuts meet your scanning needs, you can create a
customized Setting Shortcut.
This chapter provides descriptions of the scanner features using
options on the TWAIN Datasource tabs. If you are using the TWAIN
Datasource, follow the procedures in this chapter to set up your
scanner. If you are using the ISIS Driver, see Chapter 4, Using the ISIS
Driver.
Terminology and
features
If you have used previous scanners from Kodak, you may be familiar
with many of the image processing features already. With the new
graphical user interface in the TWAIN Datasource, some of the names
of those features have changed. Refer to Appendix A, TWAIN Image
Processing Terminology for a cross reference of previous names with
new names.

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Accessing the Scan
Validation tool
1. Select Start>Programs>Kodak>Document Imaging>Scan
Validation Tool.
2. From the Driver Types box, select TWAIN.
3. From the Drivers box, select Kodak Scanner: i600 or i700 and click
OK.
4. Select the Setup icon.
The main Kodak Scanner screen will be displayed.