Kodak Document Scanner 9500 with Image Manager Assembly Instructions

Integrator’s
Guide
A-61124
Document Scanner 9500 with
Image Manager
Document Scanner 9500
without Image Manager

A-61124 March 1999 1-1
1 Introduction
This Integrator’s Guide contains information that applies to the
following Document Scanners:
• Kodak Digital Science ™ Document Scanner 9500 with the
Kodak Digital Science Image Manager
•
Kodak Digital Science ™ Document Scanner 9500 without the
Kodak Digital Science Image Manager
These scanners are high-performance, high-resolution rotary
scanners designed for medium- to high-volume digital capture of
business documents. The information captured may include
printed characters, handwritten text and graphics from documents
of various sizes.
Following are some features of the scanner:
Document size:
Length: 2.5 to 30 in. (64 to 762 mm)
Width: 2.5 to 12 in. (64 to 305 mm)
Thickness: 0.0015 to 0.014 in. (0.0381 to 0.36 mm)
Resolution (dpi): 70 to 200
Transport Speed (ips): 24
Resolution (dpi): 210 to 300
Transport Speed (ips): 16
Page images are transmitted to a host computer (via standard
SCSI interface) along with an image header which allows for easy
indexing, database storage, and retrieval.

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About this guide This Integrator’s Guide provides the information need ed to use the
Kodak Digital Science Document Scanner 9500.
You should be familiar with the operation of the scanner. If you are
not, refer the Appendix B,
Reference Materials for a complete
listing of available publications.
In addition to this information, the Integrator’s Guide contains the
following chapters:
• Chapter 2,
Scanning Concepts , provides an overview of the
scanning process.
• Chapter 3, Image Headers, provides an overview of the
information generated during the scanning process.
• Chapter 4, Scanner-host Communications , describes the
communications between the scanner and the host system.
• Chapter 5, The SCSI Interface , describes the SCSI bus, SCSI
commands, SCSI status and message responses and SCSI
conformance.
• Chapter 6,
Scanner-unique Commands, describes the
commands used to control the scanner from the host
computer.
• Chapter 7,
The Diagnostic Interface (J45/COIN3), describes
the communications between the scanner and an RS-232
terminal that can be used as an interface to receive diagnostic
information.
• Appendix A,
Glossary , provides a list of commonly used terms
and definitions pertaining to the scanning environment.
• Appendix B, Reference Materials, provides a list of other
available publications from Kodak supporting the Document
Scanner 9500.
• Appendix C,
Assigning Image Addresses, defines the fields
required for a valid image address.
• Appendix D, Image Processing Parameter Defaults , provides
default parameter values and recommended image processing
parameters.
• Appendix E,
Image Processing, provides an overview of the
image processing capabilities of the scanner/microimager,
which are controlled by the host computer and methods for
evaluating digitally scanned images.

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2 Scanning Concepts
This chapter provides an overview of the scanning process, a
discussion of error conditions, and two methods of fault recovery.
Scanning documents Follow this sequence to scan documents: set up the scanner,
enable scanning, initiate polling, feed documents, and disable
scanning.
Setup To set up the scanner:
1. Determine and select the mode (configuration) to be used for
the current application.
The mode may be selected by the host computer using a
scanner-unique command (HA), or by the operator using the
scanner control panel.
2. Determine if any changes to the Image Processing parameters
need to be made for the current application. Execute the
required scanner-unique command(s) to make the desired
changes.
Image Processing parameter changes remain in effect until
one of the following conditions occur:
— The scanner is powered down using the main power
switch.
— A SCSI bus device Reset command is executed.
— A single parameter change is overridden by another
change to the same parameter.
3. Set the Sequential ID Number Seed and/or the Next Image
Address using a scanner-unique command (DC and HC,
respectively), if desired.
4. Calibrate the scanner. For procedures on how to do this, see
the
Kodak Digital Science Scanner 9500, User’s Guide.
5. Prepare documents according to the instructions found in the
Kodak Digital Science Scanner 9500, User’s Guide .

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Enable scanning The host must issue a SCSI Scan command (XX) 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.
Feed documents Feed documents according to the instructions found in the
Kodak
Digital Science
Document Scanner 9500, 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 disabled when one of the following conditions occur:
• The scanner is first powered on using the main power switch.
• A SCSI bus device Reset command is executed.
• An End-of-Job indicator is sent by the operator from the
scanner control panel.
• A scanner-unique End-of-Job command (GX) is issued by the
host computer.
• An error occurs requiring fault recovery.
• The scanner portion of the machine has not been calibrated.
NOTE:Once scanning has been disabled, documents cannot be
scanned until the host enables scanning by issuing a
SCSI Scan command.
Error handling The scanner recognizes and reports a variety of error conditions .
Some errors are reported to either the host (via the SCSI
interface) or the scanner control panel, while others are reported
to both the host and the scanner control panel.
An error (via the SCSI interface) is defined as either a current
error or a deferred error.
A current error results from a problem in processing the current
SCSI 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 that may have
occurred are reported after current errors.

A-61124 March 1999 2-3
When an error occurs, the host will receive a SCSI Check
Condition Status. This indicates to the host that there may be
one current error and potentially one or more deferred errors.
The host must follow a Check Condition Status with a SCSI
Request Sense command. The Sense data will indicate the type
of error that has occurred.
To receive subsequent pending errors, the host must execute a
SCSI Test Unit Ready command. If a deferred error is pending,
the Test Unit Ready command will terminate with a Check
Condition Status. The host follows with a SCSI Request Sense
command. The combination of Request Sense followed by Test
Unit Ready must be repeated until a "good" status is returned on
the Test Unit Ready command. A "good" status indicates no
errors (current or deferred) are pending.
IMPORTANT:
If at any point the host receives a Check Condition
for a command and fails to issue a subsequent
Request Sense command, the scanner will clear
all (current and deferred) Sense data.
Some error conditions disable scanning and cause the document
transport to stop. These errors are reported on the scanner
control panel. This is done to prevent additional images from
entering the image buffer while allowing the host to perform fault
recovery activities. To aid in fault recovery, the information bytes
of the Request Sense data will contain a Sequential ID Number
for the approximate image upon which the error occurred.
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.

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Fault recovery Fault recovery methods are required when unanticipated
circumstances interrupt scanning, such as a document jam. The
two methods described below meet the needs of most users.
However, other methods may be used.
IMPORTANT:
Before beginning fault recovery, make sure all the
images and headers have been transferred from
the image buffer to the host system.
Interactive/online method Use the Interactive/online method when your primary concern is
that the database has no duplicate images.
Follow these steps to use the Interactive/online method:
1. At the host system, search through the most recently scanned
files to determine which images have been scanned and
transferred.
2. Find the last successfully scanned image. Record the
Sequential ID Number and/or the image address assigned to
the last successfully scanned image.
3. Sort through the stack of documents being scanned to find the
document that produced the last successfully scanned image.
You will have to rescan all of the documents that follow the last
successfully scanned document.
4. Download the Sequential ID Number and/or the Next Image
Address using a scanner-unique command (DC and HC,
respectively). The value(s) you download should correspond
to the document following the last successfully scanned image.
5. Begin scanning the documents that follow the last successfully
scanned document.
Batch/offline method Use the Batch/offline method when your primary concern is
efficient use of time, duplicates in the database do not present a
problem, and there is adequate space in the database for the
duplicate images (same images with different Sequential ID
Numbers and image addresses).
Follow these steps to use the Batch/offline method:
1. Remove the stack of successfully scanned documents from
the exit hopper.
2. Take the last three or four documents from the top of the stack
and put them into the feed tray or at the top of the next stack
of documents.
3. Begin scanning the documents.

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3 Image Headers
Image header contents This chapter provides an overview of the type of information
generated during the scanning process, and how to retrieve
images and headers.
The scanner collects the following information for each document
scanned:
Document number (Sequential ID Number)
The scanner assigns a unique Sequential ID Number to each
document. This number may be initialized by the host computer
using a scanner-unique command.
Image size
The scanner records the number of bytes required to store the
scanned document image.
Document level
The scanner assigns a document level to the scanned document
in one of the following ways:
•Press one of the Level Keys (I, II, III) on the control panel.
•Execute function code F94 (Level 1), F95 (Level 2), F96
(Level 3), or F07 (Level 0).
•Use the Footswitch accessory, if it is installed and enabled.
•Use a patch, if the Patch Reader accessory is installed and
enabled.
NOTE:If you do not use one of the methods above to assign a
document level, the level will be determined by the
mode defaults.
For example, assume the mode defaults assign a Level
2 to a document that follows a Level 3 document; and a
Level 1 to a document that follows a Level 2 document.
If the last document was assigned a Level 3, then the
current document is assigned a Level 2.
Mode
The scanner records the current operating mode that was
selected for the application.
Line length
The scanner records the number of pixels-per-line in an image.
Page length
The scanner records the number of lines-per-page in an image.

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Image address
The scanner assigns an image address to the scanned
document. The image address is based upon the index format
defined in the current operating mode and the document level
assigned to the document. Refer to Appendix C,
Assigning
Image Addresses
for additional information.
Header flags
The scanner records any flags that have been set for special
consideration. For example, a document image that may need to
go through a quality assurance check can be denoted by setting
a flag via the scanner control panel.
There are two types of flags:
•Latched flags. A latched flag is enabled and remains set until it
is disabled. In this case, the operator can execute function
code F73 and feed a set of documents. A flag is placed in the
header of all documents scanned until the operator executes
function code F73 to disable or reset the flag.
•Momentary flag. A momentary flag is set only for the next
document to be scanned. The operator can execute function
code F74 to momentarily set the flag and feed the document.
The flag is automatically reset for the next document.
Compression type
The scanner records the compression type used, which is
determined by either the mode definition or by the mode
definition override.
Date
The scanner records the date the document is scanned.
Time
The scanner records the time the document is scanned .
Resolution
The scanner records the selected scanned image resolution.
Bit order
The scanner records the selected bit order.
Skew Detection
If the Advanced Document Controller accessory is installed and
enabled, the scanner records whether or not a skew error was
detected.
Polarity
The scanner records the image polarity.

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Bar code header information
If the Bar Code Accessory is installed and enabled and a bar
code is detected on the document, the decoded information is
included in the image header.
Bar code information can contain a maximum of 106 ASCII
characters:
•80 characters of actual data
•9 delimiters
•a colon
•14 bytes of image address information
•a line feed
•a null terminator
Samples:
<Bar Code>:<IA><line feed><null>
<Bar Code 1>;<Bar Code 2>;<Bar Code 3>:<IA><line
feed><null>
When using bar code, some situations may require evaluation of
Image Header data and, perhaps, manual cleanup of the
information contained in the header:
• During normal bar code reading, if a bar code is not decoded
properly (i.e., not recognized or only a portion of the code is
recognized), the bar code data will not appear in the image
header. For example, if there are two bar codes on a
document and only the second bar code is read and decoded
properly, only the data contained in the second bar code will
appear in the image header (making it appear as though only
one bar code was placed on the document).
• During partial bar code reading, if a bar code is not decoded
(i.e., not recognized or only a portion of the code is
recognized), a question mark may appear in the image
header. For example, if the start character followed by the
minimum number of characters is readable, the image header
will contain bar code information (corresponding to what has
been successfully read and decoded) followed by a semi-
colon (;) and a question mark (?).
• During reading of multiple bar codes, duplicate bar code
information may be placed in the header.
Image Deskew Flag
If the image was successfully skew corrected, this flag is set to 1
otherwise this flag is set to 0. This requires the Image Manager.
Skew Angle
The scanner will report the detected skew angle from 0 to 44
degrees independent of whether the image was skew corrected.
This requires the Image Manager.

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Image header format The following table gives the position and the format of each
piece of data placed in the image header:
Offset Format Dynamic Data Set by
Command
7 ASCII-10 Sequential ID Number DC
27 ASCII-8 Image Size –
45 ASCII-2 Document Level –
54 ASCII-2 Mode HA
71 ASCII-8 Line Length –
95 ASCII-8 Page Length –
110 ASCII-9
(Alpha) Image Address - Fixed Field –
120 ASCII-10 Image Address - Level 3
Field –
131 ASCII-10 Image Address - Level 2
Field –
142 ASCII-10 Image Address - Level 1
Field –
154 ASCII-2 Momentary Flag –
156 ASCII-2 Latched Flag –
165 ASCII-2 Compression Type FX/Y/Z
175 ASCII-2 Date - Month (1 to 12) –
177 ASCII-2 Date - Day (1 to 31) –
179 ASCII-2 Date - Year (00 to 99) –
189 ASCII-2 Time - Hours (0 to 23) –
191 ASCII-2 Time - Minutes (0 to 59) –
193 ASCII-2 Time - Seconds (0 to 59) –
220 ASCII-3 Resolution BX/Y/Z
227 ASCII-2 Bit Order EX
233 ASCII-4 Skew∗–
242 ASCII-2 Polarity SX/Y/Z
256 ASCII-
106 Bar Code Data –
368 ASCII-2 Image Deskew Flag† –
375 ASCII-2 Skew Angle† –
* 0 = No skew warning
1 = Skew warning (if Skew Detection accessory is installed)
† If the Image Manager is installed

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NOTES:
• The header created for a rear side image is identical to the
header created for a front side image except for the literal value
(bytes 0–6); Front # is replaced by Rear #.
• Each piece of information collected during the scanning
process is placed in an image header associated with the
scanned document image (two-sided scanning produces two
image headers and two images-per-document; one-per-side).
• The image header consists of 512 bytes. The header format is
identical for all modes. The format is illustrated on the next
page.

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Default Image Header Format
01234567891011121314151617181920212223242526272829
Front # Length =
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
Level = Mode = LFLin
60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89
e Length = = Page Leng
90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 11
3
114 115 116 117 118 119
th = LfIA = =
120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 14
3
144 145 146 147 148 149
==
150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 17
3
174 175 176 177 178 179
Lf C m p = D a t e =
180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 20
3
204 205 206 207 208 209
Time - Roll # =
210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 23
3
234 235 236 237 238 239
Res= BO = SK= P0
240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 361 362 363
I= Lf
nu nu nu nu nu nu nu nu nu nu nu nu Bar Code Data nu
364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 … 511
Des= Ang= nu nu nu nu nu
nu = Null (00H)
Lf = Line Feed (0AH)
Blank = Blank (20H) NOTE: Resolution reported will be actual (rounded to the nearest
10 dpi).

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Retrieving images and
headers Headers and images are transferred to the host system via the
SCSI Read command. The data can be transferred in one of
three forms: header only, image only, or compound image, i.e.,
header with image. To determine the form, set the transfer type
within the SCSI Read command.
The image can be read in one of two ways:
• Read the header, then read the image.
• Read the compound image.
IMPORTANT:
The header should always be read before the
image. The header contains information
pertinent to the successful transfer of the image,
e.g., image size, and should be read prior to
reading the image.
The following table illustrates the results of one Read command
followed by another. Assume that Image 1 is followed by Image
2.
Last Transfer Requested Transfer Resultant Transfer
Compound (Header 1 and Image
1) Compound Header 2 Image 2
Compound (Header 1 and Image
1) Header Header 2
Compound (Header 1 and Image
1) Image Image 2*
Header 1 Compound Header 2**
Image 2
Header 1 Header Header 2**
Header 1 Image Image 1
Image 1 Compound Header 2
Image 2
Image 1 Header Header 2
Image 1 Image Image 2*
* Note that Header 2 was not transferred. This is not recommended.
** Note that Image 1 was not transferred.

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Recommended retrieval
methods The following examples illustrate how to retrieve image headers
and images.
To read compound images (image header with image) using
packets:
• Perform a SCSI Read asking for 64K bytes of compound data.
• From the header, you find the image is 316,000 bytes long.
Assuming the header is 512 bytes long, 65,024 bytes of image
were obtained from the first read. That means there are still
250,976 bytes of image to be read.
• Execute three more 64K-byte SCSI Read commands asking for
compound data to obtain a total of 261,632 (196,608 + 65,024)
bytes of image data.
• Execute a SCSI Read requesting 54,368 bytes of data.
To read the header and then read the image:
• Perform a SCSI Read asking for 512 bytes of header data.
• From the header, you find the image is 316,000 bytes long.
• Execute a SCSI Read asking for 316,000 bytes of image data.

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4 Scanner — Host Communications
This chapter provides an overview of the communication link
between the scanner and the host system. Communications
between the scanner and the host system occur across a SCSI
bus. The SCSI interface supports two-way command/data
communication between the scanner and the host system. The
SCSI-2 command set is supported.
Host to scanner
communications The host transmits machine setup information to the scanner
using both the SCSI Define Windows command and the SCSI
Send command. The SCSI Define Windows command is used to
set up image processing parameters such as resolution,
threshold, contrast, etc.
The SCSI Send command transmits scanner-unique commands.
These allow settings of both image processing parameters and
machine configuration. These commands are embedded within
the Send command as data and can be identified by the 2-byte,
scanner-unique command field. A series of scanner-unique
commands may be sent as one data string within a single Send
command.
Scanner to host
communications The scanner transmits digitized images to the host via the SCSI
interface using the SCSI Read command.
The scanner is capable of transmitting current image processing
setup information using the SCSI Get Windows command.
Additionally, the scanner can transmit both image processing and
configuration information using the SCSI Read command .
SCSI data rates The
Digital Science Document Scanner 9500 has a SCSI
controller which is capable of faster SCSI transfer rates. It is
capable of operating at a sustained maximum data transfer rate
of 7 megabytes-per-second. Actual data transfer rate is a function
of the host system configuration.

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5 The SCSI Interface
This chapter describes the SCSI interface used with the scanners.
For complete information on the appropriate SCSI specification,
refer to SCSI-2 Working Draft ANSI X. 131-198X, Revision 6,
10/29/88.
SCSI overview The SCSI interface provides a means of communication between
a maximum of eight computer and peripheral devices, giving the
host computer independence within this system. As a result, tape
drives, printers, optical disks, communications devices, etc., can
be added to the host computer(s) without requiring modification to
the generic system hardware or software. The interface uses
"logical" rather than "physical" addressing for all data structures.
SCSI bus The SCSI bus allows communication between any two SCSI
devices at a time. When two SCSI devices communicate on the
bus, one acts as an initiator and the other acts as a target. The
initiator is usually a host computer that originates operations, and
the target is usually a peripheral controller that performs the
operation. A SCSI device generally has a fixed role as an initiator
or target, but some may assume either role. The scanner acts
only as a SCSI target.
Access to the SCSI bus is handled through bus arbitration. The
SCSI device with the highest priority (as determined by its SCSI
ID bit) is given control of the bus. The SCSI device with an ID of 7
is the highest priority device. The initiator then selects a target
and the target controls all further communications. Data transfers
on the bus are asynchronous and follow a Request/Acknowledge
handshake protocol. One 8-bit byte of information is transferred
to the initiator with each handshake.
NOTE: The amount of time required to execute the SCSI
commands is affected by the number of peripheral devices
on the bus, as well as the priorities assigned to each
peripheral device. Therefore, the amount of time required
to execute the SCSI commands will vary based upon the
system configuration. It is recommended that a dedicated
host adapter be used with the scanner.

5-2 A-61124 March 1999
SCSI interface signal
lines The SCSI interface uses 18 signal lines:
Select (SEL)
Acknowledge (ACK)
Attention (ATN)
Reset (RST)
Target
Busy (BSY)
Data (DB(0)-DB(7))
Data Parity (DB(P))
Control/Data (C/D)
Input/Output (I/O)
Message (MSG)
Request (REQ)
Host
Computer
Initiator
Issuing SCSI
commands There are seven steps or phases for issuing commands to the
scanner or controller:
Bus Free
Arbitration
Selection
Command
Data
Status
Message
Bus Free phase — the SCSI bus is not being used by an initiator
(host computer) or the target (scanner). No signals on the bus
are asserted.

A-61124 March 1999 5-3
Arbitration phase — an essential phase in a multi-host
environment with multiple initiators. In this phase, multiple
initiators compete for control of the bus. Only one initiator can
have control of the bus at a time. The initiator asserts the BSY
signal, simultaneously this initiator outputs its own SCSI ID bit to
the SCSI bus. The initiator with the highest SCSI ID will win the
arbitration and assert the SEL (select) signal. If the initiator does
not win the arbitration, it will revert to the Bus Free phase.
Selection phase — software connections are established
between an initiator and a target device. The initiator selects the
target device by asserting the ID bit of the selected device and its
own ID bit. The initiator then de-asserts the BSY signal, selecting
the target device.
Command phase — the initiator issues a command to the target
device. Commands are transmitted in a fixed format of 6, 8, or 10
consecutive bytes. Each command is distinguished by a unique
op code.
Data phase — data will be exchanged between the initiator and
the target device after the specific commands are executed.
There are two types of data phases:
•Data-In, where the data is transmitted from the target device
to the initiator, or
•Data-Out, where the data is transmitted from the initiator to
the target device.
Status phase — a status code is returned from the target to the
initiator indicating the status in which the command terminated.
Occasionally, the system enters the Status phase from the
Command phase. Refer to the section entitled, “SCSI status
responses” later in this chapter.
Message phase — messages will be exchanged between the
initiator and the target device. A message is transmitted from the
target device to the initiator, indicating the completion of a
command. Refer to the section entitled, “SCSI message
responses” later in this chapter.

5-4 A-61124 March 1999
SCSI status responses In the SCSI communication mode, a function is considered
incomplete until a valid status response is received from the other
end of the SCSI link. There are three valid SCSI status
responses:
Status Response Code Meaning
Good Status 00H The frame was successfully
received and individual fields
within the frame contained legal
characters.
Check Condition
Status 02H A special condition occurred. A SCSI Request Sense command
is required to obtain information
about the cause of the condition.
Some host adapters
automatically perform a Request
Sense command.
Busy Status 08H Target is unable to accept
commands at the present time.
Host should try again. The host
should wait a minimum of 100
milliseconds before trying again.
NOTE: "H" in the list above indicates hexadecimal notation.