Kodak I1800 Series Bedienungsanleitung

A-61580 November 2007 1-1

1 Introduction

The Kodak i1800 Series Scanners are high-volume production

scanners which include 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) or Kodak Capture Software

to enable image processing.

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 i1800 Series Scanners provide both color/grayscale and

black and white scanning simultaneously with throughput speeds up to

200 ppm.

About this manual This manual provides the following:

Chapter 1, Introduction includes a brief summary of the Kodak i1800

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

drop-out 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 i1800 Series Scanners have 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.

1-2 A-61580 November 2007

Image outputs The i1800 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 i1800 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 one-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 one-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)

A-61580 November 2007 1-3

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.

FG.jpg

(front grayscale)

FB.tif

(front black and white)

BG.jpg

(back grayscale)

BB.tif

(back black and white)

A-61580 November 2007 2-1

2 Best Practices

This chapter provides you with recommendations for program logic,

which will allow you to interact efficiently with the i1800 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)

• Programmable keys

• Starting image addresses

• Patch reading

•Batching

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.

2-2 A-61580 November 2007

Scanner setup To set up the scanner:

1. Set up your scanner operating conditions:

• simplex/duplex

• image order

• lamp timeout

• transport timeout

• transport timeout response

• length detection status and response

• multi-feed detection status and response

• starting document count

• printing parameters (printing status, print font, orientation and

strings)

• programmable keys

• batching parameters (batch level, count, start and end-of-batch

functions)*

• patch parameters (patch types to recognize, transfer patch

definition)*

• starting image address*

• level to follow level rules*

• image address formats*

*These items are only available when Image Addressing is enabled.

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. Select your Document Type/Color Correction as appropriate for

color document scanning. See Chapters 3 or 4 (depending on your

driver). For other vendor tool kits, refer to their documentation.

3. 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, Back Color, Back Black and white, Back

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.

4. Prepare documents according to the instructions found in the Kodak

i1860 User’s Guide.

A-61580 November 2007 2-3

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 i1800

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.

• An End-of-Job indicator is sent by the operator from the operator

control panel touchscreen.

• A scanner-unique End-of-Job command is issued by the host

computer.

• 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 either the host or the touchscreen, while

others are reported to both the host and the touchscreen.

An error is defined as either a current or deferred error.

A current error results from a problem in processing the current

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.

NOTE: Low level commands and information will be handled by your

device driver. The following information is provided for reference

only.

When an error occurs, the host will receive a 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 Request Sense command. The Sense data will

indicate the type of error that has occurred.

2-4 A-61580 November 2007

To receive subsequent pending errors, the host must execute a 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 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 touchscreen. 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.

A-61580 November 2007 2-5

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 back images.

Black and white only -

duplex

1. Prepare documents.

2. Start the scanner to do black and white duplex scanning (front black

and white and back 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 back black and white image header

Read back black and white image

End loop

Color only - duplex 1. Prepare documents.

2. Start the scanner to do color duplex scanning (front color and back

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 back color image header

Read back color image

End loop

Grayscale only - duplex 1. Prepare documents.

2. Start the scanner to do grayscale duplex scanning (front grayscale

and back 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 back grayscale image header

Read back grayscale image

End loop

2-6 A-61580 November 2007

Dual stream - simplex 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. Enable the scanner and start polling.

Loop

Read front black and white image header

Read back black and white image

Read front color image header

Read back color image

End loop

Dual stream - duplex 1. Prepare documents.

2. Start the scanner to do dual stream duplex scanning (front black and

white, front color, back black and white and back 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 back black and white image

Read front color image header

Read back color image

Read front black and white image header

Read black and white image

Read back color image header

Read color image

End loop

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