Kodak Document Scanner 9500 with Image Manager Instrucciones de montaje

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.

1-2 A-61124 March 1999

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.

A-61124 March 1999 2-1

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

2-2 A-61124 March 1999

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.

2-4 A-61124 March 1999

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.

A-61124 March 1999 3-1

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.

3-2 A-61124 March 1999

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.

A-61124 March 1999 3-3

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 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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