Kodakメーカー9500の使用説明書/サービス説明書
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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.
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.
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 d ocuments , and disable scanning .
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.
A-61124 March 1999 2-3 When an error occurs, the host will receive a SCSI Check Condition S tatus. 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.
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.
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.
3-2 A-61124 March 1999 Image address The scanner assigns an image address to the scanned document. The image a ddress 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.
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.
3-4 A-61124 March 1999 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 .
A-61124 March 1999 3-5 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 # .
3-6 A-61124 March 1999 Default Image Header F ormat 0123456789 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 F r on t # Le ng t h = 30 31 32 33 34 35 36 37 38 39 40 4.
3-8 A-61124 March 1999 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.
A-61124 March 1999 3-9 Recommended retrieval methods The following examp les illustrate how to retrieve image h eaders and images. To read compound images (image header with image) using packets: • Perform a SCSI Read asking for 64K bytes of compound data.
A-61124 March 1999 4-1 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.
A-61124 March 1999 5-1 5 The SCSI Interface This chapter descr ibes the SCSI inter f ace used with the scanners. For complete inf ormat ion on the appropriat e SCSI specificat ion, ref er to SCSI-2 W orking Draf t ANSI X. 131- 198X , Revision 6, 10/29/88.
5-2 A-61124 Marc h 1999 SCSI interface signal lines The SCSI inter f ace uses 18 signal lines: Select (SEL) Acknowledge (ACK) Attention (ATN) Reset (RST) Target Busy (BSY) Data (DB(0)-DB(7)) Data Pari.
A-61124 March 1999 5-3 A rbitrati on phase — an essent ial phase in a multi-host environment with mult iple init iat ors. I n t h is phase, m ultiple initiators com pet e for cont r ol of t he bus. O nly one initiator can have control of t he bus at a time.
5-4 A-61124 Marc h 1999 SCSI status responses In the SCSI communication m ode, a f unction is considered incomplete until a valid stat us r esponse is r eceived from t he ot her end of t he SCSI link.
A-61124 March 1999 5-5 SCSI message responses Message Code Di rect ion Functi on/ Action SCSI Spec Ref Command Complete 00H scanner->host Scanner indicat ing the I/ O process is completed and a valid status has been sent. Section 5.6.5 Initi ator-De tected Error 05H host->scanner Scanner cont inues cur r ent I/O process.
5-6 A-61124 Marc h 1999 SCSI conformance The scanner conf orms t o t he SCSI specif icat ions as f ollows: • Single-ended, 8- bit bus, Cable A, shielded connector (Alternat ive 2). Cable B is not supported. • Single-initiat or ( one host ) is supported.
A-61124 March 1999 5-7 SCSI commands This section list s t he SCSI commands t hat t he scanner supports. Inf or m at ion for each com mand includes: • Command f or mat operation codes ( op codes). • Section numbers t o r ef erence in t he SCSI - 2 Specif ications.
5-8 A-61124 Marc h 1999 Define Window Par ameters command Command op code: 24H SCSI Specifi cation: Sect ion 14. 2. 1 Command block descriptor Bit By te 7 6 5 4321 0 0 Operation Code (24H) 1 Logical U.
A-61124 March 1999 5-9 Define Window descript or bytes Bit Byte 7 6 5 43 2 1 0 0 W indow Identifier 1 Reserve d 2 (MSB) X Re s o l ut io n 3 (LSB) 4 (MSB) Y Re s o l ut io n 5 (LSB) 6 (MSB) 7 Upper Le.
5-10 A-61124 Marc h 1999 Define Window Parameters data Descriptor Data Definition W indow Identifier = SFFFFF00 S=Side (0-Front, 1-Rear) FFFFF=Mode (0-18) Auto = 0 Auto windows not supported X Resol u.
A-61124 March 1999 5-11 Descriptor Data Definition Bit Ordering = 0000H 0001H Alway s scans lef t to right, top to bottom Data pack ing within a by te (bit ordering) is selectable: 0000H=ms b/right;ls.
5-12 A-61124 Marc h 1999 Get Window command Command op code: 25H SCSI Specifi cation: Sect ion 14. 2. 2 Command block descriptor Bit By te 7 654321 0 0 Operation Code (25H) 1 Logical Unit Num ber Rese.
A-61124 March 1999 5-13 Get Window Parameters header data Descriptor Data Definition W indow Data Length = 54 882 1756 The value is equal to the data header, not including the window data length (8 by.
5-14 A-61124 Marc h 1999 Get Window descriptor bytes B i t / B y t e 7 65 43210 0 W indow Identifier 1 Reserved 2 (MSB) X Resolution 3 (LSB) 4 (MSB) Y Resolution 5 (LSB) 6 (MSB) 7 Upper Left X 8 9 (LS.
A-61124 March 1999 5-15 Get Window Parameters data Descriptor Data Defin ition W indow Identifier = SFFFFF00 S=Side (0-Front, 1-Rear) FFFFF=Mode (0-18) Auto = 0 Auto windows not supported X Resolution = 70 to 300 Doc ument Sc anner 9500 Y Re so lu tio n = Upper Left X † = 0 to 14400* 0 to 12 inches (0 to 304.
5-16 A-61124 Marc h 1999 Descriptor Data Defin ition Noise Filter = 0, 1, 2 0 = no f ilter 1 = rem ove lone pixels 2 = majority rul e No Scan = 0 = 1 No s can off (scanning enabled) No scan on (s cann.
A-61124 March 1999 5-17 Inquir y command Command op code: 12H SCSI Specifi cation: Sect ion 7. 2. 5 Command block descriptor Bit Byte 76543210 0 Operation Code (12H) 1 Logical Unit Number Reserved EVP.
5-18 A-61124 Marc h 1999 Inquiry data Descriptor Data Definit ion Peripheral Qualif ier 000b Peripheral Device 06H Scanner device Remove Medium 0b Not rem ovable Device-T y pe Modifier 01H 02H Sim plex (fr ont only ) Duplex (f ront and rear) ISO Version 0 No c om pliance claim s ECMA Version 0 No com pliance claim s ANSI Version 2H ANSI X3.
A-61124 March 1999 5-19 Read command Command op code: 28H SCSI Specifi cation: Sect ion 14. 2. 5 Command block descriptor Bit Byte 7 6543 210 0 Operation Code (28H) 1 Logical Unit Number Reserved RelA.
5-20 A-61124 Marc h 1999 Release Unit command Command op code: 17H SCSI Specifi cation: Sect ion 14. 2. 6 Command block descriptor This comm and is not f ully implement ed.
A-61124 March 1999 5-21 Request Sense command Command op code: 03H SCSI Specifi cation: Sect ion 7. 2. 15 Command block descriptor Bit Byte 76543210 0 Operation Code (03H) 1 Logical Unit Number Reserv.
5-22 A-61124 Marc h 1999 Request Sense data Descriptor Data Definition Valid = 1 Data is alway s valid Error Code = 70H = 71H Cu rrent Error Deferred Erro r Segment Num ber = 0 Not used Filem ark = 0 .
A-61124 March 1999 5-23 Additional Info Scanner Di sabled Err or Sense Key Sens e Code Sense Qualifier Description Byt es Seq. Id# Recovery Required Fatal Error Calibration Required Stop Trans Contr o.
5-24 A-61124 Marc h 1999 Reserve Unit command Command op code: 16H SCSI Specifi cation: Sect ion 14. 2. 6 Command block descriptor This comm and is not f ully implement ed.
A-61124 March 1999 5-25 Send command Send is requir ed when executing scanner- uniq ue commands. Command op code: 2AH SCSI Specifi cation: Sect ion 14.
5-26 A-61124 Marc h 1999 Using the Send command for scanner- unique commands Scanner-unique com mands may be sent to the scanner dur ing the Data Tr ansf er phase of a SCSI Send command. IMPORTANT : The Transfer Type f ield m ust be set t o 80H. The f ollowing tables illustrate how a scanner-uniq ue DA command with a data field of 345.
A-61124 March 1999 5-27 Test Unit Ready command Command op code: 00H SCSI Specifi cation: Sect ion 7. 2. 17 Command block descriptor Bit Byte 7 6543210 0 Operation Code (00H) 1 Logical U nit Number Re.
A-61124 March 1999 6-1 6 Scanner-unique Commands This chapter provides informat ion about the scanner-uniq ue commands used f or communication and dat a exchange between the scanner and host system.
6-2 A-61124 Marc h 1999 Command summary The following table pr ovides a summary of all available scanner- unique commands. Detailed descriptions of each command appear on the pages indicat ed.
A-61124 March 1999 6-3 There are t hree types of im age processing com mands: • X commands af fect bot h front and rear scanning. • Y com mands aff ect only fr ont scanning. • Z com mands aff ect only rear scanning . W hen using SCSI Send: For duplex scanners, all three t ypes of commands m ay be used.
6-4 A-61124 Marc h 1999 Commands Each scanner-unique com mand is described in this sect ion. The command descript ions appear in alphabetical order. A X/Y/Z Cropping/ A uto Cropping The AX/ Y/Z command def ines the scan window (cropping parameter s) to be used for the current m ode.
A-61124 March 1999 6-5 BX/Y/Z — Scan resolution The BX /Y/Z command def ines scanning r esolution for t he current mode. Data Field Command Field res B X/Y/Z Data Field Description Value(s) res scan re solution in dots per inch 70 to 300* * Values mus t be specif ied in increm ents of 10 dpi.
6-6 A-61124 Marc h 1999 DX — No scan The DX com mand enables or disables scanning f or the cur rent mode. Data Field Command Field stat D X Data Field Descrip tion Valu e(s) stat no s can off (scanning enabled) 0 no scan on (s canning disabled) 1 EX — Bit order The EX command def ines the bit or der within a byte of imag e data.
A-61124 March 1999 6-7 FX/Y/Z — Compression T he FX/Y/Z com mand defines t he compression f or the current mode. It allows the optional specificat ion of a K-f actor f or Gr oup III, two-dimensi onal compression.
6-8 A-61124 Marc h 1999 GX — End of job The GX command initiates t he scanner End of Job seq uence. This sequence includes: • turning off the f eeder • flushing the transport • turning off the transpor t • disabling scanning NOTE: The imag e buffer is not cleared.
A-61124 March 1999 6-9 JA — Define mode The JA command alter s the preprog rammed application m ode by storing the current oper ating mode in its place.
6-10 A-61124 Marc h 1999 JA command Exampl e 2: • Mode 4 is the curr ent application mode. • T he host executes the f ollowing FX command to disable compression: HEX 30 46 58 CHAR 0 F X • T he h.
A-61124 March 1999 6-11 KX/Y/Z — Scan contrast The KX/ Y/Z command def ines the contrast used for t he current mode. NOTE: A contrast of 0 results in a f ixed threshold.
6-12 A-61124 Marc h 1999 MX/Y/Z — Image enhancement filter The MX/Y/Z command selects an Im age Enhancement f ilter f or the current mode. Data Field Command Field filter M X/Y/Z Data Field Descrip .
A-61124 March 1999 6-13 SX/Y/Z — Rev e rse image The SX/Y/Z com mand changes t he white/black polarity f or the current mode. Data Field Command Field rev S X/Y/Z Data Field Descrip tion Valu e(s) r.
6-14 A-61124 Marc h 1999 YX/Y/Z — Border Reduction If auto-cropping is off (see AX , Y , Z comm and), the Y command removes borders on sides of documents.
A-61124 March 1999 6-15 Scanner-unique command samples There ar e several way s to alter the default image processing parameters: • t emporarily override an individual parameter • t emporarily ove.
6-16 A-61124 Marc h 1999 The f ollowing table illustrates how the use of a string of scanner- unique comm ands can temporarily override current mode parameters: RESULT A CT ION Compression Resolut ion.
A-61124 March 1999 6-17 Permanently changing a group of parameters A permanent chang e to a group of paramet ers is perf ormed by temporar ily ov erriding a group of parameter s and then sending a scanner-uniq ue Define Mode (JA) command t o save the values to a specified m ode.
6-18 A-61124 Marc h 1999 Recommended usage of scanner-unique commands The recom mended method of downloading and saving image processing param eters, when using scanner- unique commands, is to use a S.
A-61124 March 1999 7-1 7 The Diagnostic Interface (J45/COIN3) This chapter descr ibes the communications bet ween the scanner and an RS-232 term inal, which may used to receive diagnostic informati on. Usage The diagnost ic interf ace ( also r ef erred t o as CO IN3) may be used to receive diagnostic messag es.
A-61124 March 1999 A-1 Appendix A Glossary Batch A number of documents to be scanned as a group. Bi-tonal image An unscreened image that consists of pixels which are either black or white (1 bit/pixel), as opposed to gray scale (screened) images which consist of pixels which are assigned a value based upon a range of gray shades.
A-2 A-61124 March 1999 Document image level Rank associated with a type of document. Up to four levels — Level 3, Level 2, L evel 1, and L evel 0 — can be used.
A-61124 March 1999 A-3 Multilevel indexing A method of organizing documents in a structured manner when one type of document is associated with a particular level and another type of document is associated with another level of greater or lesser importance.
A-4 A-61124 March 1999 Scaling Method used to obtain output resolutions other than the base resolution of the scanner . Can be done only from a higher resolution to a lower resolution . Scanner-unique command Allows the host computer and the scanner to communicate with each other.
A-61124 March 1999 B-1 Appendix B Reference Materials The following publications are available for the Kodak Digital Science Document Scanner 9500 . A-61092 User's Guide A-61124 Integrator's.
A-61124 March 1999 C-1 Appendix C Assigning Image Addresses An image a ddress may contain up to 15 characters, consisting of a maximum of 12 digits and a maximum of 3 delimiters. You must define the following four fields: • Field A represents Level 1.
C-2 A-61124 March 1999 • Three Level Offset Format Field A is defined as having a field length of zero. Field B is defined as having a field length greater than zero. Field C is defined as having a field length greater than zero. Fixed Field may be defined, if desired.
A-61124 March 1999 D-1 Appendix D Image Processing Parameter Defaults Image processing parameters Image processing parameters are fine-tuned during integration for each application/document type, with the goal of optimizing document image quality .
D-2 A-61124 March 1999 Table D-1 — Scanner 9500 with the Image Manager Default image processing parameters Parameter Command Modes 1,5,9, Modes 13,17 Modes 2,6,10 Modes 14,18 Modes 3,7,11,15 Modes 4.
A-61124 March 1999 D-3 Table D-2 — Scanner 9500 Recommended I mage processing parameters Document Type Threshold (JX/Y/Z) Contrast (KX/Y/Z) Screen (LX/Y/Z) Image Enhancement Filter Noise Filter (NX/.
D-4 A-61124 March 1999 Table D-3 — Scanner 9500 without the Image Manager Default image processing parameters Parameter Command Modes 1,5,9,13,17 Modes 2,6,10,14,18 Modes 3,7,11,15 Modes 4,8,12,16 S.
A-61122/A-61124 March 1999 E-1 Appendix E I mage P r ocessing Thi s appendix pr ov ides an ov er vi ew of im age proces sing capab ilities which a re con tro lled by the h os t compu te r using scanner -unique com mands and gui deli nes f or ev aluating s canned im ages.
E-2 A-61122/A-61124 March 1999 Ima g e processing capabilities This secti on describes the s tandard capab ilities o f th e sc anner. Ref er to the end of thi s secti on for inf or mati on o n ho w to use t he Adaptiv e Thres hold Proces sor accessory.
A-61122/A-61124 March 1999 E-3 Co mpressio n Com pres sion i s used to reduc e the number of b ytes needed f or scanned doc ument i mages , thus s av ing storage s pace and/or trans mi ssi on tim e. This i s acc ompli shed with s pecial algori thms that use run- length encodi ng.
E-4 A-61122/A-61124 March 1999 Contras t (without A TP) Co nt rast d ete rmin es t he a bilit y of th e sc anner to detect subtle diff erences i n gra y le vel s .
A-61122/A-61124 March 1999 E-5 Image enhan cement f ilters Image Enhanc ement fi lters ar e used to optimi z e cer tain max im um char acteristi cs. The f ollo wing Im age Enhancement f ilter options are a vai labl e for the scanner /micr oim ager 990 onl y .
E-6 A-61122/A-61124 March 1999 Mixe d mode/E rror diffusion Mi xed m ode/Err or di ffusion pr ocessing s creens photographi c areas of a docum ent to simul ate gra y le vel s , yet sharpens the edges of te xt.
A-61122/A-61124 March 1999 E-7 Noise filter The sc anner uses two t ypes of N oise f il ters : Rem ov e Lone Pix el and Maj ority R ule . Use the N oise f ilter to i ncreas e the com press ion ratio and i mpro ve the appear ance of docum ent im ages.
E-8 A-61122/A-61124 March 1999 This is the sam e document, using the R emov e Lone Pix el Nois e f il ter to s uppres s the bac kground noi se:.
A-61122/A-61124 March 1999 E-9 Resolution The r esolution of a scanned i mage is def ined b y the num ber of pix els- per-i nch (al so kno wn as dots -per -inch or dpi ) that ar e used to cr eate the im age. The sc anner is capab le of produci ng document i mages of v ar yi ng resol utions.
E-10 A-61122/A-61124 March 1999 Scr eening/Dithering Scr eening (dit hering) i s a method used to si mulate gra y le vels . Scr eening i s e xpr essed i n terms of le vel s, r anging from 2-l ev el to 64-l ev el, w ith se v eral le v els i n between. Scr eening is a pr ocess that gr oups neighboring pi x els together into a s uper- pix el.
A-61122/A-61124 March 1999 E-11 Threshol ding Thres holdi ng is us ed to con v er t a gra y scal e im age into a bi- tonal (1 bi t/pix el) i mage. The thres holdi ng v alue r anges fr om 0 to 255. A low th resh old value will p r oduce a li ghter im age , and can be used to subdue bac kgrounds and subtl e, unneeded inf ormation.
E-12 A-61122/A-61124 March 1999 Thi s docum ent was scanned us ing a ( high) thr eshold v alue of 170: Thi s docum ent was scanned us ing a ( low ) thr eshold v alue of 85.
A-61122/A-61124 March 1999 E-13 Adaptive Threshold Pr ocessor (A T P) accessory The Adapti ve Thres hold Pr ocess or s eparates the f oregr ound inf or mati on in an image ( i.e ., text, graphi cs, l ines , etc.) from the bac kground inf ormation ( i.
E-14 A-61122/A-61124 March 1999 Image A w as proc essed using a contr ast v alue of 50. Im age B w as process ed using a c ontrast v alue of 80. C ompare the tw o im ages. N otice t he wor d "f our" in b loc ks 5, 6, 7 and 8 w as not vis ib le in Im age A, b ut is v isib le in Image B .
A-61122/A-61124 March 1999 E-15 A TP Threshold s ettings The thr eshold param eter control s the lightnes s and darkness of the bac kground in an i mage. Thr eshold c an hav e a val ue between 0 and 255, w ith a def ault v alue of 90. As the thres hold is incre ase d, mo re of th e da rker grays in the ima ge will be come bl ack .
E-16 A-61122/A-61124 March 1999 Ima g e M anager capab ilities The K odak Digi tal Science Image Manager ac cess ory prov ides sk ew detection and c orrect ion, auto- cropping and bor der reduc tion. Thi s accessory is no t av ailable on t he Scanner /Mi cr oimag er 990.
A-61122/A-61124 March 1999 E-17 Auto-cropping W hen auto-croppi ng is turned on, i t detects and cr ops the border s of a document and outputs the actual si ze of the docum ent that w as scanned. The fol lo wing illustra tes h ow sk ew cor rect ion and auto- cr opping w ork.
E-18 A-61122/A-61124 March 1999 The illust ratio ns t ha t follow show example s o f skew correctio n in f ix ed croppi ng mode. Examp le 1 Skew e d d ocum en t - - - - - Ce nt er f ed U n - s k e w e.
A-61122/A-61124 March 1999 E-19 Examp le 3 If the entire im age border i s almost as dark as the scanner bac kground (i.e ., bl ac k or dark b lue), desk ew , auto-croppi ng and border r eduction m ay not w or k pr operly . The res ulting i mage will not be desk ew ed or auto- cropped, as s how n in the e xampl e belo w .
E-20 A-61122/A-61124 March 1999 Border reduc tion The border r eduction f eature only w or ks when auto- cr opping i s turned off. Border r eduction f ills th e are a ou tside o f the docum ent edges w ith a w hite bac kground w ithin the f ix ed cr opping w idth.
A-61122/A-61124 March 1999 E-21 Ev aluating scanned ima g es Thi s secti on descri bes methods f or ev aluating di gital ly scanned im ages. Ev aluating s canned images requi res an unders tanding of how sc anned im ages are cr eated and the types of sour ce docum ents used to c reate thes e im ages.
E-22 A-61122/A-61124 March 1999 Computer-gene rate d ima ges Com puter- generated im ages (printed by dot- matrix or l aser printers ) ar e discrete i n both tone and space. Di scr ete in tone means the im age consi sts of pi xel s on a grid. The num ber of bi ts-per- pix el determine the num ber of gra y le vel s av ail abl e.
A-61122/A-61124 March 1999 E-23 Ev aluation criteria Ta r g e t The tar get used i s the IEEE Std 167A01987 F acsim il e T est C har t. This tar get was chos en for its te xt and photographic content, as wel l as the assortment of r esoluti on targets .
E-24 A-61122/A-61124 March 1999 Stair casing Stair casi ng is dis pla yed w hen a detail on the scanned i mage s witches from the scan l ine to the nex t li ne of the grid. This is t he sam e degradati on seen on com puter-gener ated im ages and is mos t apparent on shal low sl opes and soft curv es.
A-61122/A-61124 March 1999 E-25 Use of the Hal ftone Rem ov al option l ower s the resol ution of the im age so it is l ower than the sc an resol ution. T he associ ated loss in r esoluti on may not be acceptab le f or al l appl icati ons . Figures C an d D illustrat e th e effec t of Half ton e Removal on th e alia sing patterns.
E-26 A-61122/A-61124 March 1999 When us ing a tr aditi onal m icr ocopy c har t, res oluti on is r ead as the sma llest t arge t th at is clea rly visible, with n o line lo ss (all fiv e li nes pres ent). 4.0 lin e pair s-pe r-millime ter is the la st tar get with all five lin es v isible.
A-61122/A-61124 March 1999 E-27 Brightne ss Br ightnes s indic ates that cali bration is functi oning correc tly and is dir ectly aff ected by thres hold. Loss i n brightness i n a scanned im age ma y indic ate a need to recal ibrate the scanner or to alter thres hold v alues .
EASTMAN KOD AK COMPAN Y Doc um ent Im ag i ng Roc hester , New York 14650 Kodak, Digital Science and t he ds m onogram symbol are t rademar ks of Eastm an Kodak Com pany. Print e d on recycled pape r. A-61124 3/99 © East m an Kodak Company, 1999 Prin ted in U .
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