Kodak Document Scanner 9500 with/without Image Manager 9500 Instrukcja Użytkownika

Integrator’sGuideA-61124Document Scanner 9500 withImage ManagerDocument Scanner 9500without Image Manager

A-61124 March 1999 3-3Bar code header informationIf the Bar Code Accessory is installed and enabled and a barcode is detected on the document, the dec

A-61122/A-61124 March 1999 E-27BrightnessBrightness indicates that calibration is functioning correctly and isdirectly affected by threshold. Loss in

EASTMAN KODAK COMPANYDocument ImagingRochester, New York 14650Kodak, Digital Science and the dsmonogram symbol are trademarks ofEastman Kodak Company.

3-4 A-61124 March 1999Image header formatThe following table gives the position and the format of eachpiece of data placed in the image header:Offset

A-61124 March 1999 3-5NOTES:• The header created for a rear side image is identical to theheader created for a front side image except for the litera

3-6 A-61124 March 1999Default Image Header Format01234567891011121314151617181920212223242526272829Front # Length =30 31 32 33 34 35 36 37 38 39 40 41

3-8 A-61124 March 1999Retrieving images andheadersHeaders and images are transferred to the host system via theSCSI Read command. The data can be tran

A-61124 March 1999 3-9Recommended retrievalmethodsThe following examples illustrate how to retrieve image headersand images.To read compound images (i

A-61124 March 1999 4-14 Scanner — Host CommunicationsThis chapter provides an overview of the communication linkbetween the scanner and the host syste

A-61124 March 1999 5-1 5 The SCSI InterfaceThis chapter describes the SCSI interface used with the scanners.For complete information on the appropr

5-2 A-61124 March 1999SCSI interface signallinesThe SCSI interface uses 18 signal lines:Select (SEL)Acknowledge (ACK)Attention (ATN)Reset (RST)Target

A-61124 March 1999 5-3Arbitration phase — an essential phase in a multi-hostenvironment with multiple initiators. In this phase, multipleinitiators

A-61124 March 1999 1-11 IntroductionThis Integrator’s Guide contains information that applies to thefollowing Document Scanners:• Kodak Digital Scienc

5-4 A-61124 March 1999SCSI status responsesIn the SCSI communication mode, a function is consideredincomplete until a valid status response is receiv

A-61124 March 1999 5-5SCSI message responsesMessage Code Direction Function/Action SCSI SpecRefCommandComplete00H scanner->host Scanner indicating

5-6 A-61124 March 1999SCSI conformanceThe scanner conforms to the SCSI specifications as follows:• Single-ended, 8-bit bus, Cable A, shielded connec

A-61124 March 1999 5-7SCSI commandsThis section lists the SCSI commands that the scanner supports.Information for each command includes:• Command fo

5-8 A-61124 March 1999Define Window Parameters commandCommand op code: 24HSCSI Specification: Section 14.2.1Command block descriptorBitByte7 6 5 4321

A-61124 March 1999 5-9Define Window descriptor bytesBit Byte 7 6 543 2 1 00 Window Identifier1Reserved2 (MSB)X Resolution3(LSB)4 (MSB)Y Resolution5(L

5-10 A-61124 March 1999Define Window Parameters dataDescriptor Data DefinitionWindow Identifier = SFFFFF00 S=Side (0-Front, 1-Rear)FFFFF=Mode (0-18)A

A-61124 March 1999 5-11Descriptor Data DefinitionBit Ordering = 0000H 0001HAlways scans left to right, top to bottomData packing within a byte (bit

5-12 A-61124 March 1999Get Window commandCommand op code: 25HSCSI Specification: Section 14.2.2Command block descriptorBitByte7 654321 00 Operation C

A-61124 March 1999 5-13Get Window Parameters header dataDescriptor Data DefinitionWindow Data Length = 54 882 1756The value is equal to the data

1-2 A-61124 March 1999About this guideThis Integrator’s Guide provides the information need ed to use theKodak Digital ScienceDocument Scanner 9500.Yo

5-14 A-61124 March 1999Get Window descriptor bytesBit/Byte7 65432100 Window Identifier1 Reserved2 (MSB) X Resolution3 (LSB)4 (MSB) Y Resolution5 (LSB

A-61124 March 1999 5-15Get Window Parameters dataDescriptor Data DefinitionWindow Identifier = SFFFFF00 S=Side (0-Front, 1-Rear)FFFFF=Mode (0-18)Auto

5-16 A-61124 March 1999Descriptor Data DefinitionNoise Filter = 0, 1, 2 0 = no filter1 = remove lone pixels2 = majority ruleNo Scan = 0= 1No scan off

A-61124 March 1999 5-17Inquiry commandCommand op code: 12HSCSI Specification: Section 7.2.5Command block descriptorBitByte765432100 Operation Code (1

5-18 A-61124 March 1999Inquiry dataDescriptor Data DefinitionPeripheral Qualifier 000bPeripheral Device 06H Scanner deviceRemove Medium 0b Not remova

A-61124 March 1999 5-19Read commandCommand op code: 28HSCSI Specification: Section 14.2.5Command block descriptorBitByte765432100 Operation Code (28H

5-20 A-61124 March 1999Release Unit commandCommand op code: 17HSCSI Specification: Section 14.2.6Command block descriptorThis command is not fully im

A-61124 March 1999 5-21Request Sense commandCommand op code: 03HSCSI Specification: Section 7.2.15Command block descriptorBitByte765432100 Operation

5-22 A-61124 March 1999Request Sense dataDescriptor Data DefinitionValid = 1 Data is always validError Code = 70H= 71HCurrent ErrorDeferred ErrorSegm

A-61124 March 1999 5-23Additional Info Scanner Disabled ErrorSenseKeySenseCodeSenseQualifierDescriptionBytesSeq. Id#RecoveryRequiredFatalErrorCalibra

A-61124 March 1999 2-12 Scanning ConceptsThis chapter provides an overview of the scanning process , adiscussion of error conditions, and two methods

5-24 A-61124 March 1999Reserve Unit commandCommand op code: 16HSCSI Specification: Section 14.2.6Command block descriptorThis command is not fully im

A-61124 March 1999 5-25Send commandSend is required when executing scanner-unique commands.Command op code: 2AHSCSI Specification: Section 14.2.8Comm

5-26 A-61124 March 1999Using the Sendcommand for scanner-unique commandsScanner-unique commands may be sent to the scanner during theData Transfer ph

A-61124 March 1999 5-27Test Unit Ready commandCommand op code: 00HSCSI Specification: Section 7.2.17Command block descriptorBitByte7 65432100 Operati

A-61124 March 1999 6-16 Scanner-unique CommandsThis chapter provides information about the scanner-uniquecommands used for communication and data e

6-2 A-61124 March 1999Command summaryThe following table provides a summary of all available scanner-unique commands. Detailed descriptions of each

A-61124 March 1999 6-3There are three types of image processing commands:• X commands affect both front and rear scanning.• Y commands affect only

6-4 A-61124 March 1999CommandsEach scanner-unique command is described in this section. Thecommand descriptions appear in alphabetical order.AX/Y/Z C

A-61124 March 1999 6-5BX/Y/Z — Scan resolutionThe BX/Y/Z command defines scanning resolution for the currentmode.Data Field Command Fieldres B X/Y/ZD

6-6 A-61124 March 1999DX — No scanThe DX command enables or disables scanning for the currentmode.Data Field Command Fieldstat D XData Field Descript

2-2 A-61124 March 1999Enable scanningThe host must issue a SCSI Scan command (XX) to enablescanning before documents can be transported through thesca

A-61124 March 1999 6-7FX/Y/Z — CompressionThe FX/Y/Z command defines the compression for the currentmode. It allows the optional specification of a K

6-8 A-61124 March 1999GX — End of jobThe GX command initiates the scanner End of Job sequence.This sequence includes:• turning off the feeder• flushi

A-61124 March 1999 6-9JA — Define modeThe JA command alters the preprogrammed application mode bystoring the current operating mode in its place. Af

6-10 A-61124 March 1999JA command Example 2:• Mode 4 is the current application mode.• The host executes the following FX command to disablecompres

A-61124 March 1999 6-11KX/Y/Z — Scan contrastThe KX/Y/Z command defines the contrast used for the currentmode.NOTE: A contrast of 0 results in a fixe

6-12 A-61124 March 1999MX/Y/Z — Imageenhancement filterThe MX/Y/Z command selects an Image Enhancement filter forthe current mode.Data Field Command

A-61124 March 1999 6-13SX/Y/Z — Reverse imageThe SX/Y/Z command changes the white/black polarity forthe current mode.Data Field Command Fieldrev S X/

6-14 A-61124 March 1999YX/Y/Z — BorderReductionIf auto-cropping is off (see AX, Y, Z command), the Ycommand removes borders on sides of documents.Dat

A-61124 March 1999 6-15Scanner-uniquecommand samplesThere are several ways to alter the default image processingparameters:• temporarily override an

6-16 A-61124 March 1999The following table illustrates how the use of a string of scanner-unique commands can temporarily override current modeparame

A-61124 March 1999 2-3When an error occurs, the host will receive a SCSI CheckCondition Status. This indicates to the host that there may beone curren

A-61124 March 1999 6-17Permanently changing a group of parametersA permanent change to a group of parameters is performed bytemporarily overriding a

6-18 A-61124 March 1999Recommended usage ofscanner-uniquecommandsThe recommended method of downloading and saving imageprocessing parameters, when us

A-61124 March 1999 7-1 7 The Diagnostic Interface (J45/COIN3)This chapter describes the communications between the scannerand an RS-232 terminal, w

A-61124 March 1999 A-1Appendix A GlossaryBatchA number of documents to be scanned as a group.Bi-tonal imageAn unscreened image that consists of pixels

A-2 A-61124 March 1999Document image levelRank associated with a type of document. Up to four levels —Level 3, Level 2, Level 1, and Level 0 — can be

A-61124 March 1999 A-3Multilevel indexingA method of organizing documents in a structured manner whenone type of document is associated with a particu

A-4 A-61124 March 1999ScalingMethod used to obtain output resolutions other than the baseresolution of the scanner. Can be done only from a higherreso

A-61124 March 1999 B-1Appendix B Reference MaterialsThe following publications are available for theKodak DigitalScienceDocument Scanner 9500.A-61092

A-61124 March 1999 C-1Appendix C Assigning Image AddressesAn image address may contain up to 15 characters, consisting ofa maximum of 12 digits and a

C-2 A-61124 March 1999• Three Level Offset FormatField A is defined as having a field length of zero.Field B is defined as having a field length grea

2-4 A-61124 March 1999Fault recoveryFault recovery methods are required when unanticipatedcircumstances interrupt scanning, such as a document jam. Th

A-61124 March 1999 D-1Appendix D Image Processing Parameter DefaultsImage processingparametersImage processing parameters are fine-tuned during integr

D-2 A-61124 March 1999Table D-1 — Scanner 9500 with the Image ManagerDefault image processing parametersParameter CommandModes1,5,9,Modes13,17Modes2,6

A-61124 March 1999 D-3Table D-2 — Scanner 9500Recommended Image processing parametersDocument Type Threshold(JX/Y/Z)Contrast(KX/Y/Z)Screen(LX/Y/Z)Imag

D-4 A-61124 March 1999Table D-3 — Scanner 9500 without the Image ManagerDefault image processing parametersParameter CommandModes1,5,9,13,17Modes2,6,1

A-61122/A-61124 March 1999 E-1Appendix E Image ProcessingThis appendix provides an overview of image processingcapabilities which are controlled by th

E-2 A-61122/A-61124 March 1999Image processingcapabilitiesThis section describes the standard capabilities of the scanner.Refer to the end of this sec

A-61122/A-61124 March 1999 E-3CompressionCompression is used to reduce the number of bytes needed forscanned document images, thus saving storage spac

E-4 A-61122/A-61124 March 1999Contrast (without ATP)Contrast determines the ability of the scanner to detect subtledifferences in gray levels. It is d

A-61122/A-61124 March 1999 E-5Image enhancement filtersImage Enhancement filters are used to optimize certain maximumcharacteristics.The following Ima

E-6 A-61122/A-61124 March 1999Mixed mode/Error diffusionMixed mode/Error diffusion processing screens photographicareas of a document to simulate gray

A-61124 March 1999 3-13 Image HeadersImage header contentsThis chapter provides an overview of the type of informationgenerated during the scanning pr

A-61122/A-61124 March 1999 E-7Noise filterThe scanner uses two types of Noise filters: Remove Lone Pixeland Majority Rule. Use the Noise filter to inc

E-8 A-61122/A-61124 March 1999This is the same document, using the Remove Lone Pixel Noisefilter to suppress the background noise:

A-61122/A-61124 March 1999 E-9ResolutionThe resolution of a scanned image is defined by the number ofpixels-per-inch (also known as dots-per-inch or d

E-10 A-61122/A-61124 March 1999Screening/DitheringScreening (dithering) is a method used to simulate gray levels.Screening is expressed in terms of le

A-61122/A-61124 March 1999 E-11ThresholdingThresholding is used to convert a gray scale image into a bi-tonal(1 bit/pixel) image. The thresholding val

E-12 A-61122/A-61124 March 1999This document was scanned using a (high) threshold value of170:This document was scanned using a (low) threshold value

A-61122/A-61124 March 1999 E-13Adaptive ThresholdProcessor (ATP) accessoryThe Adaptive Threshold Processor separates the foregroundinformation in an i

E-14 A-61122/A-61124 March 1999Image A was processed using a contrast value of 50. Image Bwas processed using a contrast value of 80. Compare the twoi

A-61122/A-61124 March 1999 E-15ATP Threshold settingsThe threshold parameter controls the lightness and darkness ofthe background in an image. Thresho

E-16 A-61122/A-61124 March 1999Image Manager capabilitiesTheKodak Digital ScienceImage Manager accessory providesskew detection and correction, auto-c

3-2 A-61124 March 1999Image addressThe scanner assigns an image address to the scanneddocument. The image address is based upon the index formatdefine

A-61122/A-61124 March 1999 E-17Auto-croppingWhen auto-cropping is turned on, it detects and crops theborders of a document and outputs the actual size

E-18 A-61122/A-61124 March 1999The illustrations that follow show examples of skew correction infixed cropping mode.Example 1Skewed document ----- Cen

A-61122/A-61124 March 1999 E-19Example 3If the entire image border is almost as dark as the scannerbackground (i.e., black or dark blue), deskew, auto

E-20 A-61122/A-61124 March 1999Border reductionThe border reduction feature only works when auto-cropping isturned off. Border reduction fills the are

A-61122/A-61124 March 1999 E-21Evaluating scanned imagesThis section describes methods for evaluating digitally scannedimages. Evaluating scanned imag

E-22 A-61122/A-61124 March 1999Computer-generated imagesComputer-generated images (printed by dot-matrix or laserprinters) are discrete in both tone a

A-61122/A-61124 March 1999 E-23Evaluation criteriaTargetThe target used is the IEEE Std 167A01987 Facsimile Test Chart.This target was chosen for its

E-24 A-61122/A-61124 March 1999StaircasingStaircasing is displayed when a detail on the scanned imageswitches from the scan line to the next line of t

A-61122/A-61124 March 1999 E-25Use of the Halftone Removal option lowers the resolution of theimage so it is lower than the scan resolution. The assoc

E-26 A-61122/A-61124 March 1999When using a traditional microcopy chart, resolution is read asthe smallest target that is clearly visible, with no lin