Kodak 9500 manual Fault recovery, Interactive/online method Batch/offline method

Page 7

Fault recovery

Interactive/online method

Batch/offline method

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.

Use the Interactive/online method when your primary concern is that the database has no duplicate images.

Follow these steps to use the Interactive/o nline 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.

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.

2-4

A-61124 March 1999

Image 7 Contents
Integrator’s Guide Document size Introduction About this guide Scanning Concepts SetupScanning documents Error handling March Interactive/online method Batch/offline method Fault recoveryImage Headers Image header contentsCompression type ResolutionImage address Header flagsImage Deskew Flag Bar code header informationSkew Angle Image header format Offset Format Dynamic Data Set by CommandMarch Default Image Header Format Requested Resultant Last Transfer Retrieving images and headersTo read the header and then read the image Recommended retrieval methodsScsi data rates Scanner Host CommunicationsScsi overview Scsi bus Scsi InterfaceIssuing Scsi commands Scsi interface signal linesMarch Status Response Code Meaning Scsi status responsesMessage Code Direction Function/Action Scsi Spec Scsi message responsesScsi conformance Command Number Scsi commandsScsi command summary Command OpDefine Window Parameters header Define Window Parameters commandCommand block descriptor Command op code 24H Scsi Specification SectionDefine Window descriptor bytes Descriptor Data Definition Define Window Parameters dataDescriptor Data Definition Get Window Parameters header Get Window commandCommand op code 25H Scsi Specification Section Get Window dataGet Window Parameters header data Get Window descriptor bytes Get Window Parameters data Descriptor Data Definition Command op code 12H Scsi Specification Section Inquiry commandInquiry descriptor bytes Inquiry data Command op code 28H Scsi Specification Section Read commandRead data Command op code 17H Scsi Specification Section Release Unit commandCommand op code 03H Scsi Specification Section Request Sense commandRequest Sense descriptor bytes ILI Request Sense dataDescription Seq. Id# Required Error Trans Panel Command op code 1BH Scsi Specification Section Reserve Unit commandScan command Command op code 16H Scsi Specification SectionCommand op code 2AH Scsi Specification Section Send commandSend data Command block Using the Send command for scanner- unique commandsCommand op code 00H Scsi Specification Section Test Unit Ready commandScanner-unique command format Scanner-unique CommandsScsi Command summaryMarch AX/Y/Z Cropping/ Auto Cropping CommandsDescription Values DX No scan EX Bit order Information returned is in the following format FX/Y/Z Compression GC Last image addressHC command sets the image address for the next document GX End of job HA Set mode HC Next image addressJA command Example JA Define modeJX/Y/Z Scan threshold Cont NX/Y/Z command selects the Noise filter for the current mode SX/Y/Z Reverse image TX Simplex/duplex status YX/Y/Z Border Reduction WX/Y/Z Skew Correction W command enables or disables document skew correctionTemporarily overriding a group of parameters Scanner-unique command samplesPermanently changing individual parameters Permanently changing a group of parameters Recommended usage of scanner-unique commands Pin J45 Signals Diagnostic Interface J45/COIN3Usage Protocol Pinouts Sample interfaces Appendix a Glossary Gray levels Error diffusion modeDocument image level Gray scale imagePatch Multilevel indexingNoise Noise filterSeed Scanner-unique commandScaling ScreeningUnited States and Canada Accessory-specificAppendix B Reference Materials Ordering publicationsAppendix C Assigning Image Addresses March Image processing parameters Appendix D Image Processing Parameter DefaultsModes Parameter Command 13,17 14,18 11,15 12,16 Filter Table D-2 Scanner Recommended Image processing parameters∙ YX/Y/Z ∙ AX/Y/Z March Terminology Appendix E Image ProcessingAdaptive Threshold Processing separates the foreground Auto-cropping Image processing capabilitiesReverse imaging Simplex/duplex selection Compression is used to reduce the number of bytes needed for Contrast without ATP 61122/A-61124 March 61122/A-61124 March Noise filter 61122/A-61124 March Product Resolution Base Resolution Dpi ResolutionScreening/Dithering Bit/pixel image. The thresholding value ranges from 0 to 61122/A-61124 March Image processing settings for the ATP Adaptive Threshold Processor ATP accessoryATP Contrast settings Image a Image B Image C Image D ATP Threshold settingsSkew Detection and Correction Scanner/MicroimagerCorrection and auto-cropping work Auto-croppingExample Full width of Scanner Border reduction Border reductionPrinted Images Evaluating scanned imagesSource image types Scanned imagesPhotographic images Computer-generated imagesTarget Evaluation criteriaAliasing StaircasingFigure C Image resolution61122/A-61124 March By counting the number of black and white steps BrightnessDocument A G I N G
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