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TECHKON
Manual
Scan-Measurement-Device SpectroJet
Software ExPresso 3
TECHKON manuals, technical documentation and programs are copyrighted. Reproduction, translation or transfer to an electronic medium – in whole or in parts – is prohibited.
TECHKON software is the intellectual property of TECHKON GmbH. Purchase of the soft-ware grants the user a license for the use on one computer only. Programs may only be copied for back-up purposes. TECHKON can not be held liable for any damages that may occur by the use of the software.
The TECHKON team takes great care in producing this manual. Nevertheless, we can not fully guarantee the complete absence of errors. TECHKON GmbH and the authors can not be held liable neither for any possibly incorrect statements nor their consequences.
Products that are not made by TECHKON GmbH are mentioned for information purposes only and such statements do not represent trademark infringement. All registered trademarks are recognized.
TECHKON products and product names are registered internationally under several intellec-tual patents and trademarks.
Specifications can be subject to change without notice.
Version 1.0, November 2009
You can reach us at the following address:
TECHKON GmbH WiesbadenerStr.27•D-61462Königstein/Germany Telephone:+49(0)6174924450•Telefax:+49(0)6174924499 E-mail:info@techkon.com•http://www.techkon.com
Welcome
We welcome you among the worldwide community of users of TECHKON products. We are happy that you have selected this high-quality measurement instrument. It will be a valuable tool for your day-to-day quality control tasks. With this manual we inviteyoutolearnhowtouseSpectroJetandthesoftwareExPresso3.
The manual is divided into three chapters:
Chapter 1: General description of the measurement system Chapter 2: Installation of SpectroJetandExPresso3
Chapter3: HowtouseSpectroJetandthesoftwareExPresso3
You will be fascinated how easy the system is to use. You will know how to work with SpectroJet after only a few minutes. The third chapter will show you detailed insight into the measurement functions.
Please get the device registered by using the detachable registration card, which is the last page of this manual. That way we can keep you updated about product news.
Pleasevisitusaswellontheinternetathttp://www.techkon.com.You will find useful information about the complete product range and new software versions.
Do you have any suggestions for improvements or do you require information that goes beyond the contents of this manual? We will be glad to hear from you. Your sug-gestions or questions make an important contribution to the continuous optimization of our documentation and products.
Your TECHKON Team
Content
Chapter 1: General description of the measurement system
1.1 Product description ..............................................................................5 1.2 Packing list ............................................................................................. 9
Chapter 2: Installation of SpectroJetandExPresso3
2.1 Assembly of SpectroJet ....................................................................... 10 2.2 InstallationofthesoftwareExPresso3 ........................................... 11
Chapter3: HowtouseSpectroJetandthesoftwareExPresso3
3.1 OperationofSpectroJet ...................................................................... 12 3.2 Careandmaintenance ......................................................................... 17 3.3 Softwareoverview ................................................................................ 20 3.4 Softwaresettings ...................................................................................23 3.5 Definingandrunningaprintjob .......................................................40
Appendix:
Technical specifications Manufacturer certificate Registration card
Manual TECHKON SpectroJet Chapter 1 – General description Page 5
Chapter 1
General description of the measurement system
1.1 Product description
Accurate, fast and easy to use
SpectroJet revolutionizes automatic measurements of print quality on print control bars, color wedges and test charts.
Color measurement made easy: The compact measurement device is quickly guided by hand along the color bar. Tracking wheels on the bottom of the device ensure a se-cure and straight run. At longer distances the device can be slid along a guiding track. The measurement data is transferred simultaneously to a PC in order to control the color quality of the printing press.
All-purpose device
Thanks to the modular concept of SpectroJet it can be used for any printing process and quality standard. ISO 12647, PSO, Fogra media wedge, Gracol G7™ or any other standardization method can be applied: SpectroJet will always deliver all relevant mea-surement data necessary for evaluating high quality prints.
The supplied software TECHKON SpectroConnect displays clearly all measurement values on the computer screen, which are transferred by SpectroJet via an USB connection. All measurement values can be exported as well into other applications, such as Microsoft Excel™ for example. The additionally available software TECHKON ExPresso is especially suited for the evaluation and documentation of the print quality according to various quality control methods, e. g. ISO 12647 or Gracol G7™.
ISO compliant measurements
By software command a physical polarizing filter can be inserted which is the pre-condition for conforming to the print standards. Multiple functions – color densities, colorimetry, printing contrast, gray balance, dot gain or ink setting recommendations – SpectroJet is a versatile and valuable tool for achieving highest print quality and boosting the productivity of a printing press.
Page 6 Manual TECHKON SpectroJet Chapter 1 – General description
All advantages at a glance:
Easy to handle
• forautomaticmeasurementsofcolori- metric values, densities, dot gain, print- ing contrast and gray balance • TECHKONExPressoPC-softwarecan be operated with or without the touch- screen
Modular and compact
• workswithanysheetorpressformat• space-savingmeasurementdevicefits on any table• alsooninclinedtablesperfectlyto handle• deliverycontainsallcomponentssup- plied in a practical carrying case
Easy to install
• installationismadewithinseconds• measurementdeviceismaintenance free • robustdesignforreliablefunctionin a harsh industrial environment
Complete measurement information
• anycolorbarcanbemeasured (patch size has to match aperture size)• colorbarcanbeatanylocationonthe printed sheet• nolimitationonpaperthickness• universallydesignedforISO12647 (PSO), Gracol G7™ or any other quality standard• idealforreadingFogramediawedge and similar color control targets
Manual TECHKON SpectroJet Chapter 1 – General description Page 7
Accurate
• precisespectralengineinpatented measurement head with automatically insertable polarizing filter for easy positioning conforming to ISO and DIN standards (e. g. CIE L*a*b*- and ∆E-measurements)• UVcutfilteroptionavailable
Fast
• highresolutionspectralmeasurement of a complete color bar within seconds (e.g. 500 mm in only 3 seconds!)• informationoverviewdisplaysrelevant parameters for quality control in real- time
The perfect tool for spot- and scan-measurements.
The guiding track Spectro-Jet Track, which is option-ally available, supports the accurate scanning of long color bars.
TECHKON SpectroJet is the ideal extension to TECHKON’s renown hand held instruments: SpectroPlate is the perfect tool for accurately reading printing plates and SpectroDens is the mobile, multi-purpose spectro-densitometer, which can be used at any location.
TECHKON SpectroJet is delivered as a complete turn-key system. Within a few minutes the system is up and running.
One unique feature of SpectroJet is its flexibility to be used with any press type or format.
Page 8 Manual TECHKON SpectroJet Chapter 1 – General description
Dimensions
Two different performance packages
The scan-measurement device SpectroJet and the MS-Windows software ExPresso form a complete quality control system for increasing productivity and quality of a printing press.There are two different versions available:
SpectroJet + ExPresso Basicconsists of the spectral measuring device SpectroJet and the MS-Windows software ExPresso Basic with the following func-tions:• inkzonespecificdensitydisplay• colordensityforCMYKandspotcolors (spectral density) • measurementdataexport• densitometricgraybalance• dotarea,dotgainandprintingcontrast• slur/doublingvalue• targetvalues,references,tolerances, OK sheet• face-andreverseprinting• workswithanycolorbarlength• displayofsinglemeasurementswhen used as a hand held device• statisticalanalysisandreport• supportsupto6printingunits
SpectroJet + ExPresso Procontains the same functions as the “Basic” package and additionally: • graybalancedisplay(densitometric)• inkzonespecificcolorimetric ∆E*a*b* display, CIE L*a*b*, ∆L*a*b*, L*C*h*, ∆L*C*h*• “InkCheck”recommendationforink key setting• displayandevaluationaccordingto ISO 12647, Gracol G7™ generator• supportsupto16printingunits
A post-purchase software-upgrade from the Basic- to the Pro-version can be done easily.
70 mm
135 mm
Manual TECHKON SpectroJet Chapter 1 – General description Page 9
1.2 Packing list
Contents of delivery: • measurementdeviceSpectroJet• whitestandard,ACadapterwithuniversalplugs, USB cable, carrying case• CDwithsoftwareSpectroConnect• printcontrolstripTECHKONTCSDigital• manualwithISO9000certificate
System requirements for TECHKON software: MS-WindowsXP,Vista.
Optional accessories:
• SpectroJetTrack:horizontaltrackindifferentlengths with two vertical bars• softwareTECHKONExPresso delivered on CD with software protection key (USB-dongle)• printcontrolstripsTECHKONTCS,availableasEPS-andpdf-filesonCD (canbedownloadedfreeofchargeathttp://www.techkon.com)• software-upgradesfromExPressoBasictoExPressoPro
The carrying case protects SpectroJet and parts
Page 10 Manual TECHKON SpectroJet Chapter 2 – Installation
Chapter 2
Installation of SpectroJet and ExPresso 3
2.1 Assembly of SpectroJet
SpectroJet is a solidly designed measurement device which is very functional and easy to use. It is compact in size; the buttons can be reached with the right index finger when the device is held with the right hand. The LED row is always visible.
A great advantage of SpectroJet is the fact, that it can be easily positioned on the measurement sample.
The device incorporates a high-resolution spectral sensor which analyzes the color spectrum of the measured sample. The spectral data is the base information for calcu-lating densitometric and colorimetric data which is displayed. Densitometric values can be solid density, dot area, dot gain or trapping values. Colorimetric values are typically CIE L*a*b*- or ΔE-color information.
The USB-connector is for linking with a PC. The self-locking push-pull-connector fits into the socket at the back of the device.
Grip zone
USB connector
Device label with serial number at the bottom of the device
Measurementhead
Green measurementbutton
LED row
Tracking wheels
Stop rail for guiding track
Manual TECHKON SpectroJet Chapter 2 – Installation Page 11
2.2 Installation of the software ExPresso 3
System requirements:
• PCwithMS-WindowsXPorVista• 2USBports• Screenresolution:1024x768or higher
The software is optimized to be operated with a touch sensitive screen(forexample:Elotouch1715L17").However, working without a touchscreen by using a conventional mouse / trackpad and keyboard is also possible.
Recommended color bar:
Print control strip TECHKON TCS Digital (includedwithExPresso3software).
Installation:
It is important to carry out the following steps in the right order, to make sure that the USB device drivers will be installed properly.
1. Make sure that SpectroJet and the USB-dongle(softwareprotectionkey)areNOTconnected to the PC. Insert the TECHKON CD into the CD drive of the computer. (You willfindtheCDatthebackofthemanual).2. Select “ExPresso Installation” from the menu. The installation routine will start auto-matically. Follow the steps of the installation, until it is completed.3. Now, after the installation was finished successfully you can connect SpectroJet with the USB cable and the USB-dongle to the PC.4.TECHKONExPressocannowbelaunched.
Page 12 Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet
Chapter 3
How to use SpectroJet and the software ExPresso 3
3.1 Operation of SpectroJet
Installation of SpectroJet
• Connectthepush-pull-connector(1.)ofthe included data cable with the socket at the backofthedevice.Pleasemakesurethatyouconnectthecableproperly.Thereddots(2.)on the connector and the socket will guide you.Theconnectorhastosnapinaudibly.
Tip:Disconnecttheconnectorfromthede-vice,bygraspingtheflutedareaatthefrontoftheconnector.Thusthemovablepartoftheconnectorwillshiftbackwhenpulledandtheadjustmentoftheconnectorinthesocketwillbereleased.
• ConnecttheUSB-connector(3.)attheotherendofthecablewiththePCandthesecondbranchofthecable,whichendsinaphonesocket(4.),withthephonejackoftheACadaptercable.NowconnecttheACadaptertothegrid.
WhenthegreenLEDinthemiddleoftheLEDrowisflashing,SpectroJetisreadyforuse.
Toswitchoffthedevice,youjusthavetodis-connecttheACadapterfromthegrid.
TheACadaptercanbeuseduniversallyfor100–240Vandafrequencyof47–63Hz.Therearethreeadapterplugsfordifferentcountries.Forchanging,justpulltheplugandpushinthenewone.Make sure that the plug adapterhasatightfitanduseonlytheorigi-nalTECHKONSpectroJetACadapter.
ACadapterwithuniversalplugs
UK USA
Europe
Data cable
1.3.4.
Push-pull-connectionofSpectroJet
2.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page 13
TECHKONoffersoptionallytheguidingtrackSpectroJetTrackindifferentlengths,whichmatchestothemostcurrentprintingsheetformats.Fortheinstallationyouneedtheholder,theguidingtrackandthetwometalbars.
• Firsttaketheincludedscrewdriverandat-tachtheholdertothestoprailatthebackoftheSpectroJetdevice.
• Nowthetwoverticalmetalbars,havingself-adhesivetapeonthebackside,areat-tachedtothetableorconsole.Thedistanceofthemetalbarsfromeachotherisgivenbythelengthoftheguidingtrack.Theverticalbarsshouldatonesidepreferablyflushwiththelay-onedgeofthetable.
• Makesure,thattheverticalbarsareparal-lelandwellalignedinordertoholdtheleftandrightendoftheguidingtrack,whichwillattachmagneticallytotheverticalbars.
• FinallymountSpectroJetwiththefixedholderontotheguidingtrack.
Theresistanceofthetrackingwheelsatthebottomofthedevicecanbeadjusted.
• InsertanAllenkey(1,5)intothelittlehole(1.)whichislocatednearthedevicelabelwiththeserialnumberatthebottomofSpectroJet.Whenyouturnthescrewkeyclockwiseyouwilldecreasetheresistance.Turningthescrewkeyanticlockwisewillre-sultinahigherresistance.Thusyoucancustomizethemovementchar-acteristicsofSpectoJettoyourpreferredwayofworkingwhenusingthedeviceinscanningmode.
Guiding track SpectroJet Track (Accessory)
Adjustment of the tracking wheels
Guiding track SpectroJet Track
1.
Page14 Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet
Scan measurements
• PlaceSpectroJetonthecolorbarwiththemeasurementaperturejustaheadofthefirstsection,youwanttomeasure.Pressthegreenmeasurementbutton.AfteranacousticsignalantheilluminationofthewholeLEDrow,starttoscanthecolorbaratconstantspeed.Afterthefirstmeasurementrunyouhavecompletedthedensitometricmeasure-mentanyouwillhear,thatthepolarizationfilterisswitchedoffforthecolorimetricmeasurement.
• Nowmovethedeviceinaconstantspeedbacktothepointwhereyoustartedthemeasurement.
Ifdensitometricmeasurementswithoutpolarizationfilterarecarriedout,onlyonemeasurementrunisnecessary(whichisthestandardpracticeintheUSA).
Thefasteryoumovethemeasurementdevicealongthecolorbar,themoreofthegreenLEDswilllightupintheLEDrow.WhentheorangeLEDflashesup,thelimitrangeisreached.
IfthespeedwastoohighandSpectroJetwasnotabletoreadallmeasurementpatches,theredLEDattheendoftherowlightsuptogether with three acoustic signals and the softwaredisplaysthatthemeasurementpro-cedurehasbeenaborted.Inthatcaserepeatthemeasurementatlowerspeed.
Ifthemeasurementwascarriedoutsuccess-fullyashortdoublesignalcanbeheardandthemeasurementdataarecapturedbythesoftware.
Makesurethatthemeasurementheadisalignedexactlywiththecolorbar.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page15
Spot measurements
How to measure
Pleaseensurethatthedevicealwayshasafirmstandonasolidandflatsurface.Therubberwheelspreventthedevicefromslippingintheverticaldirection. Theremustnotbeadistancebetweenthemeasurementheadandthesamplewherelightcouldpassthrough,becausethiscaninfluencethemeasurement.Thecoloroftheback-groundmaterialunderneaththemeasurementsamplecanhaveaninfluenceonthemeasurementresult.Differenttechnicalstandardsdescribewhichbackingmaterialtouse.Intheprintingindustrythefollowingprocedureiswidelyused:Whitebackingforsingleprintedpapersandblackbackingfordoubleprintedsheetsinordertoavoidthatthebackprintedsidemightshinethroughthepaperandinfluencethemeasure-ment.
HeretheoptionalavailableguidingtrackSpectroJetTrackisahelpfultool.
• Whenusingcolorbarswithapatchheightsmallerthan4,5mm,theedgeofthemea-surementheadofthedevicehastobeplacedexactlyattheupperedgeofthecolorbar,toensurethatthemeasurementheadisposi-tionedcorrectlyonthepatches.
When using color bars with a patch height higherthan4,5mm,themeasurementheadhastobeplacedwiththemeasurementaper-tureatthebottomedgeofthecolorbar.
• Tocarryoutaspotmeasurementsjustpo-sitionthedevicewiththemeasurementheadonasinglemeasurementpatchandpressthegreenmeasurementbuttonshortly.DuringthemeasurementprocessallLEDsflashupsimultaneously.Adoublesoundcon-firms,thatthemeasurementiscompletedandthemeasurementdataaredisplayedbytheExPressosoftwareinthewindow„Spotmeasurement“.
Page16 Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet
Paper white calibration
Apaperwhitecalibrationcanbecarriedoutbykeepingthegreenbuttonpressedforafewseconds.Themeasurementaperturehastobepositionedonanon-printedareaofthesheet.
Absolute white calibration
The absolute white calibration is carried out on the absolute white standard which is included.SpectroJetmustbeplacedonthestandard,withthemeasurementapertureontheceramictile.Makesurethattheceramicwhitestandardiscleanandnotde-fective.
AbsolutewhitestandardofSpectroJet
• ChooseintheExPressoSoftwareunder„Settings Measuring conditions Mea-surementdevices”thebutton„Settings”andpresstheninthe„Measurementsettings“windowthebutton„Absolutewhitecalibra-tion”.SpectroJetwillconfirmthecalibrationwithanacousticsignalandtheExPressosoft-waredisplaysthatthecalibrationwascarriedoutsuccessfully.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page17
3.2 Care and maintenance
SpectroJetisahighly-preciseopticalinstrument.Itisdesignedtoworkinharsh,indus-trialenvironments.However,itshouldbehandledwithcare. Avoidmechanicalshocks,heat,dustyorhumidenvironments.
Cleaning
Althoughthemeasurementheadwiththeopticalsystemissealedagainstdustanddirt,takecarethatthevisible,openmeasurementapertureisalwaysfreeofdust.Youcancleanthemeasurementaperturewithoil-free,cleancompressedairandabrushusedforcleaningphotographicequipment.
Cleanthedevicecasingonlywithasoftclothandanon-aggressiveplasticcleaner.Neverusealcoholorchemicallyaggressivesolvent-basedcleanerswhichcandestroythesurfaces.
Thesameprocedureisvalidforthewhitestandard.Asoftclothmadeofmicro-fibersisespeciallywellsuitedforcleaningthewhiteceramictile.Ifthewhitestandardshouldbedefective,ithastobereplacedcompletely.
Cleantherubberofthetrackingwheelsregularlywithacloth.Donotuseaggressivecleanersforthisprocedure.
Pleasedonotstickanylabelsatthebottomofthedevice.Thiscouldleadtofaultymeasurements,becausethedefineddistance–whichisimportantforthecorrectopticalfieldofdepth–mightnotbemaintained.
Page 18 Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet
1. Releasethetwoscrewscompletelysotheycanbetakenout.Nowtheaperturecanbeliftedfromthemeasurementhead.
2. Whendisassemblingorassemblinganaperture take care that no dust enters the opticalelements.Donotpressthescrewstootightinordertoavoiddamagingthethreads.
Exchanging apertures
Themeasurementaperturecanbereplacedforcleaningpurposes.Aspecialscrew-drivertypeTORXT6isrequiredandwhichisincludedintodelivery.
• Forthedisassemblyandassenblyoftheapertureturntheinstrumentupsidedown.Useasoftclothasprotectivelayertoavoidanyscratchesofthecase-surface.
• AftereachcleaningoftheapertureanewwhitecaIibrationhastobecarriedout.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page 19
Error handling
• ShouldSpectroJetdonotworkproperly,firstcheck,iftheExPressosoftwareisrunningcorrectly.ThestatusbarinthelowerrightcornerwilldisplayifthedevicecommunicatescorrectlywiththePC.RestartingthesoftwareExPressoisalsorecommendedwhenaproblemoccured.
• Checkthattherightmeasurementdeviceisselectedinthesoftwaresettings.
• CheckiftheACadapterisconnectedcorrectlytothemainsplugandthedevice.Whenconnectedproperly,SpectroJetshowsaflashinggreenLEDinthemiddleoftheLEDrow.
Warranty
ThewarrantyforTECHKONproductsis24monthsstartingwiththedateofpur-chase.Theinvoiceisthecertificateofwarranty.Thewarrantyisinvalidifthedamageiscausedbyinadequateuseofthedevice.
ShouldaTECHKONproductdonotworkaccordingtothespecification,pleasecontactusbeforesendingusthedevice.InmostcaseswecansolvetheproblemoverthephoneorviaE-mail.
Inspection intervals
TECHKONSpectroJetismaintenancefree.We recommend to validate the complete functionality of the devices in a 24 months time interval in the TECHKON service center.Weofferacompletedevicecheckasaservicepack-age.Pleasecontactusfordetails.
Foraflatfeethedevicewillbecleaned,checkedandrecalibrated.Incasearepairorexchangeofcomponentsshouldbenecessarywewillinformyou.Pleasesendthedevicealwayssecurelyinthecarryingcasewithcompleteaccessories.
Page 20 Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet
3.3 Software overwiew
ThesoftwareExPressoisclearlystructured. Themenubarcomprisesthethreesec-tions“Printjob”(bluebuttons),“Settings”(yellowbuttons)and“Exit”(graybutton).Theappropriatesubmenulayersfollowthiscolorsystempersistently.
Select:
*ExPressoProonly
P.40
P.41
P.47
P.56
P.41 P.42
P.43 P.45
P.47P.50(GrayGuideP.51)
P.52* P.53*
P.56* P.57*
P.59 P.60
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page 21
P.61
P.26
P.31
P.38
P.26 P.27
P.29
P.31 P.33
P.36 P.37
P.38
Settings:
Exit:
Page 22 Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet
Byclickingonthedeviceiconintherightsectionofthemenu bar(1.),onegetsadirectaccesstoimportantdevicesettings.Awindowisdisplayedwiththesubmenus“Measurementdevice/Update”,“Measurementsettings”and“Exporttootherappli-cations”(seep.33–35).
Belowthemenubartheprogram window(2.)isdisplayedwhichisactivatedbytheappropriatemenuitem.
Thefollowingexampleshowstheprogramwindow“Density”afterameasurementwascarriedout.Inthisprogramwindowaclickonthebargraphopensasecondwindowdisplayingdetailedmeasurementdataoftheinkzones.
The command line(3.)oftheactiveprogramwindowislocatedatthebottomoftheprogramwindow.
Thebottomareaofthescreenisastatus line(4.),showingtheconnectionstatusofthemeasurementdevice(SpectroDrive,SpectroDriveSimulatororSpectroJet)andoftheUSB-dongleattherightside.Whenmovingthemousepointerontheiconsofoneofthesecomponents,yougetadditionalinformation,e.g.thedensity-andcolorimetric-settingsofthedeviceorthesoftwareversion.
1.
2.
3.4.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page 23
3.4 Software settings
WhenthesoftwareisstartedbyadoubleclickontheTECHKONExPressoicon,thesoftwareroutinechecksfirst,whiledisplayingtheintroicon,whetherameasurementdeviceandadongleareconnected.
Ifthesoftwaredoesnotdetectanymeasurementdevice,aninformationwindowrequestsyoutoconnectthemeasurementdevicetothePCortoselectanothermeasurementdeviceoutofthesettingsmenu.Inthemenuitem“Settings Measur-ing conditions Measurementdevices”thereisalsotheoption“SpectroDriveSimu-lator”toyourdisposal.Pleasekeepinmind,thatthesimulatorprovidesonlyvirtualmeasuringdatafortest-anddemopurposes.
Page24 Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet
1.
2.
3.
Ifyouhavenotdefinedanyprintingmachineinthemenusection“Settings Printing conditions Presses”uptonow,youwillseethefollowinginfowindow:
Youcansetupaprintingmachinewhichfitstoyourprintjob,byclickingonthe“New”buttoninthemenuitem“Presses”.Whenithasbeeninstalledandsaved,thenewprintingmachineappearsinalistingintherightsectionofthemenu,whereitisathandifyouwishtochangethepresssettingslater.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page25
Certainsettingsaredoneonlyonce,afterthesoftwareisinstalledorhavetobechangedonlyoccasionallywhenfundamentalparametershavealtered.Forexamplethemenulanguage,theselectionofthemeasurementdeviceorthedefinitionofanewprintingpresswillbesetonceanddonothavetobesetforeachandeveryprintjobtobecarriedoutlater.
Thiskindofsettingsismadebypushingoneoftheyellow“Settings”buttons(1.)andthenselectingonebuttonfromthesublayer(2.seep.24).Thereferringwindowopens(3.)andcanbeedited.
Allsettingswhichweremade,canlaterberecalledwhendefininga“Print job”,where the screen will appear in bluecolor.
WhenyoustartExPresso,thesublayers“Makeready”,“Measure”and“Analyze”inthesection“Printjob”areshadedancannotbeactivateduntilyouhavesetupallnecessaryinformationsconcerningyourprinting-andmeasurement-conditionsinthe“Settings”.Finallyyouhavetoclickonthe“Select”buttoninthe“Printjob”sectiontodefineorselectaprintjob.Nowallmenuitemsinthe“Printjob”sectioncanbeused.
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The following settings can be made in the “Printing conditions” section:
Printing conditions – Presses
• Name: textboxtodefineanameoftheprintingpress• Manufacturer: textbox(notmandatory)• Type: textbox(notmandatory)• Numberofprintingunits: 1–6forExPressoBasic,1–16forExPressoPro• Numberofinkzones: max.100• Inkzonewidth: inmm,max.100mm• Reversingafter iftheprintingpresshasareversingunit,thelocation printingunit: canbeset
Youcansetupnewprintingpresses(seep.24)andeditordeletetheoneswhicharealreadydefinedandlistedintherightsectionofthe“Presses”window.
Tip:Bydoubleclickingononeoftheprintingpresseswhicharelistedintherightsectionofthemainwindowyouswitchdirectlyintotheappropriate“Edit”window.Youfindthispossibilityofquickeditinginallofthe“Printjob”-and“Settings”-win-dowswhichcontainsuchlistings.Theorderofthelistedelementscanbechangedbyclickingintheheaderoftheregister.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page27
1.
2.
Settings – Inks
Thelistofinksincludedinthedatabaseisdisplayed.ThefourprocesscolorsC,M,YandK(1.)arepre-installed.TheyarestoredinthecolorbookCMYKandarealreadymarkedbyascreencolor.Thefourprocesscolorscannotbedeletedorduplicated.
Butitispossibletoeditfurtherinksandtoimport,duplicateandexportthem.
Byusingthe“Export”functionyoucanhandoverindividuallyeditedinksandcolorbookseasilytoanotherprintingmachine.
Thedefinitionofnewinksmakesitpossibletoeditandmeasurecustomaryspotcolors,forexamplethecolorsofaHKScolorbook.
• Firstclickonthe“New”button“(2.),toopenthewindow“Definenewink”.
Page 28 Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet
1.
2.
3.
4.
5.
• Nowenteraninkname(1.)forthespotcolor.Additionallythemanufacturercanbedefined.
• Youcanchooseanalreadyexistingcolorbookforthenewinkorageneratenewone.Youeditanewcolorbookbyclickingonthebutton“Editcolorbooks”(3.).Inthewindowwhichopensnowyouchoose“New”,enteranameforthenewcolorbookandconfirmtheprocesswith“OK”.
• Choose“Maximumdensity“(4.)fordensitychannelforspotcolors.
• Nowclickonthegreenarrowtoactivatethe“Measure”function(5.),afteryouhaveplacedthemeasurementheadofthedeviceonthecolorpatchyouwishtomeasure.Theprocedurewillbecarriedoutandthesoftwareaddsascreencolortothenewink.
• Completethedefinitionofthespotcolorbypressingthe“Save”button.Thenewinkappearsnowintheinklistintherightsectionofthe“Inks”menu.
Thusanycustomaryspotcolorsorindividualcolorscanbemeasuredandaddedtotheinklisting.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page 29
Printing conditions – Color bar
Inthismenusectionthelistcolorbarsincludedinthedatabaseisdisplayed.WerecommendtheuseoftheTECHKONTCSprintcontrolstrips,becausetheirdesignisbasedoninkzonesandcoversallrelevantmeasurementpatches.Otherdefinitionscanbeloadedbyusingthe“Import”function.
Butnotonlyalreadyexistingcolorbarscanbeusedandedited.YoucanalsogenerateyourownprintingdefinitionsinExPresso.
Pleasenotethattheusedcolorsareonlyplaceholdersfortheprintedcolorsintheprintjob.
Whenyouclickthe“New”buttoninthe“Colorbar”menu,thewindow“Newcolorbar”opens.
• Editthetextboxes“Name”,“Manufacturer”,“Numberofinks”,“Patchwidth”and“Inkzonewidth”.Thenclickonthe“Editpatches”button(1.).
1.
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Thewindow“Editcolorbarpatches”opens,whichisdividedintothethreesections“Settings”(1.),“Colorbarpatches”(2.)and“Information”(3.).
• Firstdefinethreepercentagevaluesforthedotpercentagepatchesandthreeforthebal-ancepatch(4.),whichbotharelistedin“Colorbarpatches”.
• Inthesection“Colorbarpatches”nowsuccessivelycompileyourindividualcolorbarbyclickingonthecolorbarpatches.Thecolorbarwhichyouarecreatingisdisplayedinthelowerpartofthewindow(5.).
• Ifyouedited8in“Numberofinks”intheprevious“Newcolorbar”window,nowyouhavethefourprocesscolorsC,M,Y,Kaswellas4spotcolorsatyourdisposal.Eachofthesecolorsisgivenassolidink,dotpercentagevalueandslur/doublingpatches.Thebottomlineoffersabalancepatch(BAL),thetrappingpatches(C+M,C+YandM+Y),acalibrationpatch(CAL)andanemptypatch(NO).
• Accidentallysetcolorbarpatchescanbemarkeddirectlyinthecolorbar(byslidingoverthemwiththemousebuttonpressed)andthendeletedbyclickingonthe“Deleteselectedpatches”button.Toaddpatcheslater,youcansetwithamouseclickamarkerinthecolorbar.Totheleftofthismarkerthenewpatcheswillbefilledin.
• Finallythe“Save”-buttonwillsavethecurrentlygeneratedcolorbar(6.)anditwillbelistedautomaticallyinthefirstplaceofthealreadyexistingcolorbars
1. 2. 3.
6.
4.
5.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page 31
The following settings can be made in the “Measuring conditions” section:
Measuring conditions – Target values / Tolerances
Alistofdatasetsfortargetvaluesandtoleranceswillbedisplayed.ItisbasedonISO12467colorvaluesforCMYK.Individualtargetandtolerancesettingscanbemadeaswell–alsoforspotcolors.
• Clickonthe“New”button(1.)intherightmenusectionbelowthealreadylistedtargetvalues.Anewwindowopenswhereyoucanenterthenameofthenewtargetsetyouwanttogenerate.Confirmtheprocesswith“OK”.Thenewtargetsetwillappearinthelistofthealreadydefinedtargetsetsinthemenuwindow(2.),butitdoesnotyetcontaincolors.
1.
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1.
2.
• Nowclickonthe“New”button,whichyoufindonthelowerleftsideofthemenuwindow.Thewindow“Targetvalues/tolerancesforink”appears.
• Choosefromthepull-down-menuthe“Inkname”(1.)ofacolor,whichyouhavealreadydefinedin“Settings” Printing conditions Inks”(seep.27).
• AdditionallyyoucanchangethetargetvaluesandtolerancesofthiscolormanuallybyeditingthetextboxesortakethemeasurementdataofSpectroJetbypressingthe“Measure”button(2.).
• Confirmthecolorandeventuallysetchangeswith“OK”.Nowthecolorappearsintheleftsectionofthemenuwindowandisaddedtothenewtargetset.
• Thusproceedwithallthecolorswhichyouwanttoaddtoatargetset.
• Alreadyexistingtargetsetscanbeduplicated,renamed,importedanexportedbyusingthebuttonsinthelowerrightsectionofthe“Targetvalues/Tolerances”window(seepictureon p.31).Thetargetsetsofthefivepaperclassescannotbedeleted.
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2.
1.
Measuring conditions – Measurement devices
ThetypesofmeasurementdeviceswhichcanbeconnectedtotheExPressosoft-wareareshown.Whenyouhavechosenthetypeofdeviceyouwishtoconnect,aninformationwindowisdisplayedattheleftsideofthewindow.Hereyougetfurtherinformationabouttheactualdeviceandtheconnectionstatus.
Byclickingonthe“Settings“buttonintherightlowercorner,ofthe“Measurementdevices”menu,thewindow“TECHKONSpectroJet”opens,whichisdividedintothreesectionsandwhichoffersbasicsettingsoptions.
The“Measurementdevice/Update”windowshowsallrelevantinformationconcern-ingtheconnecteddevice(1.).
Thebutton“Startdeviceupdate“(2.)establishestheconnectiontotheharddisklevelofthePCandenablesthechoiceofthedirectory,inwhichtheupdatefileislocated.
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Youcandownloadthelatestfirmwareforyoudevicefreeofchargeintheinternet:www.techkon.comServiceSoftwareFolder:SpectroJet/TECHKONExPres-so TECHKONSpectroJetFirmware.ThefirmwareversionoftheconnectedSpectroJetcanbeseenintheinformationwindow“Measurementdevice/Update”.
In“Measurementsettings”thefundamentalsettingsfordensity-(1.)andcolorimetric-measurements(2.)aredisplayed.
Thestandardpre-settingsfordensitymeasurementare• forEurope:polarizationfilteron,whitereferenceispaperwhite,densityfilterisDIN16536• fortheUSA:nopolarizationfilter,whitereferenceisabsolutewhite,densityfilterisstatusT.
Youcanusethe“Densityadjustment/Slopecalibration”(3.)function,toadjustthemeasurementdevicetothedensitymeasurementdataofotherdevices.
• Selectthewindow”Densityadjustment/Slopecalibration”andfollowtheinstructions.Firstyouhavetocarryoutapaperwhitecalibrationonthepaperpatchofthecalibrationchart.
1. 2.
4.
3.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page35
Thenthereferencevaluesofthecalibrationcharthavetobeenteredintothetextboxes oftheprocesscolors.Nowthecolorpatches(CMYK)ofthecalibrationcharthavetobemeasured.Agreencheckmarkconfirmsthatthemeasurementwascarriedoutsuccessfully. Thenewdensityadjustmentissavedwith“OK”.Iftheprocedureiscancelledorthe“Resetslopevalues”functionactivated,thedevicewillberesetintoitsfactory-madestate.
Thepre-settingsforcolorimetricmeasurementsare:polarizationfilteroff,whiteref-erenceisabsolutewhite,illuminantisD50,observeris2°andDEformulaisCIELAB.
Onecanchooseotherstandardsbyclickingonthepull-down-menuifrequired.
Thebuttons“Paperwhitecalibration”and“Absolutewhitecalibration”(4.)startthecorrespondingcalibration.Afterthecalibrationhasbeencarriedoutproperly,itwillbeconfirmedbytheinformationwindow.
Withthismoduleyoucanmeasurewedgesandothermeasurementpatchesasidefromthecurrentlyselectedcolorbarandtransmitthevaluesintootherapplica-tionssuchasMicrosoftExcel™.Justswitchtoyourtargetapplicationandstartthemeasurementatthedevice.Thevaluesarecopiedtothetargetapplicationusingtheclipboard.
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Measuring conditions – Measurement export
Aftereachmeasurement,thevaluescanbeexportedtootherapplications.Themostpopularexportformatse.g.CSV(MicrosoftExcel™)arealreadypre-installed(1.).
Intheleftsectionofthewindowfurtherinformationaboutthetargetfileandthetargetfolderaredisplayed(2.).
Thebutton“Settings”(3.)opensawindowheadedbythenameoftheselectedexportformat.Hereyoucaneditformatspecificsettings.Forexamplein“DigitalInformationExport”youcanchoosebetweentext-andtheJDFformat.
Forallexportformatstheoption“Automaticexport”(4.)canbeactivated.
1.
2.
3.
4.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page37
GrayGuide targets
Ifin“SettingsSystem/Software”theoptionGracolG7™wasselectedtobethepreferredGraymodedisplay(seepicturep.38),“Settings Measuring conditions GrayGuidetargets”opensnowamenuwindow,whichallowstoadjustthetargetvaluesmanually.Graypatchesaswellastheautomaticpaperwhitecanbeedited.IfrequiredallvaluescanberesettotheG7™defaults.
Tip: Thereisnoaccesstothesettingswindowsdescribedonpage33–35,whenin“Settings Measuring conditions Measurementdevices”SpectroDriveSimulatorisselected.Thesimulatorisavirtualmeasurementdevicewhichcanbeusedfortestsanddemonstrationswhennorealhardwaredeviceisconnected.The“SpectroDriveSimulator”willalsobeusedwhennosoftwareprotectionkey(dongle)isconnectedandthesoftwarerunsindemomode.
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The following settings can be made in the “System / Software” section:
Themenuitemisdividedintothetwosections“Information”(1.)and“Settings”(2.).
Information:Displaysthetypeofsoftware(ExPressoBasicorPro),thesoftwareversion,thedongle-IDandifextensionmodulesareinstalled.
Settings:• Touchscreensupport:Mustbeactive,whenatouch-sensitivescreenisconnected,toprovideavirtualkeyboardforthetextinput.
1. 2.
3.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page 39
• Graymodedisplay:Thisselectiondefines,whethertheanalysisofthegraybalance shallbecarriedoutdensitometricallyoraccordingtoGracolG7™.• Printer:Definestheconnectedprinterforprintingthereport.• Language:Setsthelanguage.
Thebutton“Databasemaintenance”(3.inpicturep.38)opensanewwindow,whereonecandecide,afterwhichperiodoftimetheprintjobswillbearchived(4.).
Theoption“ArchivewhenexitingExPresso”canalsobeselected(5.).
Furthermoreolderprintjobscanbearchivedinstantlybyapushofabuttonandinthesamewayalreadyarchivedprintjobscanberestored(6.).
ThedatabaseislocatedontheharddiskofthePCintheExPressodirectory.When“Generatedatabasesafetybackup”(7.)isselected,theexistingdatabasewillbesavedunderagivenname.Ifrequiredthestoreddatabasecanberestoredusingtheincludedrestoretool(8.).YouhavetoquitExPressoforthisprocedureandstartitagainafterthedatabasehasbeenrestored.RestoringofthedatabaseleadstoanoverwritingoftherecentlysaveddatainExPresso.
4.
5.
6.
7. 8.
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3.5 Defining and running a print job
Beforerunningaprintjob,certainselectionshavetobemade.Everythingrelatedwitha“Printjob”isindicatedbythebluescreencolor.
ExPressohasan“autosave”function.Every“Printjob”willbesavedautomatically.Thisappliesalsofor“Printjobs”whicharenotcompletedandwillberesumedlater.
Print job – Select
Thelist(1.)contains“Printjobs”whichhavebeenalreadymade.A“Printjob”canbestoppedatanytimeandresumedlater.Aninformationbox(2.)ontheleftsideofthemenuwindowshowsataglancethemostrelevantinformations:customername,dateandtimestampofthefirstandlastmeasurement,press,numberofthemeasurementsandtheselectedcolorbars(forthetopsideaswellasforthereverseside).
1.2.
3.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page41
The“Searchfor”functionsupportsthefastresearchforalreadyexisting“Printjobs”.
Clickinginthe“Settings”button(3.inpicturep.40)providesadirectaccesstothesubmenu“PrintjobMakereadyPrintjobinfo”.
Tip:Newprintjobssimilartooldprintjobs,canbesetupbyduplicating.Thustimeissaved,becausesettingscanbetakenover.
ByusingtheduplicationfunctionalsoOK-sheetscanbetakenoverforrepeatedprintjobs.
Print job – Make ready
Certainselectionshavetobemade,beforethemeasurementscanbestarted.
Make ready – Print job info
Textualinformationabouttheprintjobcanbeeditedin“Printjobinfo”.
Thetextenteredin“Printjobname”willbethetitleofthedataset,whichwillbeau-tomaticallysavedbyExPresso.Itcanbeselectedfromthe“PrintjobSelect”menu.Duringmeasurementsitwillbeshowninthelowerleftsectionofthestatusbar.
Thesection“Customername”andatextboxfordetailed“Remarks”concerningtheprintjobcanbeusedoptionally.
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Make ready – Press / Inks
Selectapress,whichyouhavealreadydefinedin“Settings Measuring conditions Presses”(seep.24and26)andfilltheprintingunitsvirtuallywithink(1.).
Aninkingunitcanbekeptemptyaswell(2.).Forexampleifa6-colorpressisusedonlyforCMYK-print,thelasttwoprintingunitscanremainempty.
1.
2. 3.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page43
Thepictureonpage42showsan8-colorpress,withtwoemptyprintingunits.Print-ingunitno.7containsthespotcolorHKS17K(3.),whatcanbeseenataglancebythescreencolorandthecolornameontheprintingunit.
Tip:Thevirtualfillingofthepresswithinkisnotnecessary,whenanalreadyexistingprintjobwiththesamepressconfigurationisselectedin“PrintjobSelect”andduplicated.
Make ready – Sheet / color bar
Assoonasthepressisfilledwithinkchoosing“PrintjobMakereadyPress/Inks”,themenuitem“Sheet/Color”isunlockedandselectable.
1.Ontheleftsideofthewindowa“Colorbar”canbeselected,afterhavingbeendefinedorpre-installedin“Settings Printing conditions Colorbar”(seep.29f.).
1.
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Ifacolorbarisselected,whoseinkzonewidthdiffersfromtheinkzonewidthoftheselectedpress,awarningisdisplayed.
Iftheselectedcolorbardoesnotcontainapaperwhitepatch,apaperwhitecalibra-tionhastobecarriedoutmanually,beforethefunction“Scancolorbarlength”canbeused.
Thegreenarrowlocatedleftfrom“Scancolorbarlength”indicatesthatthecolorbarhastobemeasured.NowscanthecolorbarusingSpectroJet.Asadefault,thecolorbarwillbecentrallyaligned.
Additionallytheinkzoneforthefirstmeasurementcanbedefined.Usethearrowbuttonsofthe“Startsininkzone”functiontodefinewhichinkzoneofthepresswillcorrespondwiththefirstzoneofthecolorbar(1.). Theselectedconnectionbetweenthecolorbarandtheinkzonesoftheprintingpressisalsoshowngraphically(2.).
Usingthebuttons“totopside”and“toreverseside”(3.)youcanswitchbetweenthemeasurementofthecolorbarlengthfortop-andreverse-printing.Thisrequiresthatapresswithareversingunithasbeendefined.
Thegreenarrowdisappears,ifacolorbarlengthhasbeenscannedandcapturedsuc-cessfully,
3. 1.
2. 4.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page45
1.
Thebutton“Changeplateassignment”(4.)opensanewwindow,wheretheassign-mentofaprintingplateinregardtoaprintingunitcanbedefinedindividually.
Achangeoftheplateassignmentisalwaysnecessary,whentheorderoftheinkshasbeenchangedorifspotcolorsareused.
InthefollowingexampleithasbeennecessarytoassigntheinkMagenta(1.)tothespotcolorHKS17Kinprintingunitno.7.Thusthecolorbarwillfeatureameasure-mentpatchattherightposition,whichguaranteesapropermeasurementandanalyzeofthecolorbar.
Make ready – Target values / Tolerances
Astheprintingunitshavebeenfilledwithink,nowtheyareassignedwithtargetandtolerancevalues;preferablytolerancesetsaccordingtotheprintingstandardISO12647forthepaperclasses1–5,whicharealreadypre-installed.
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Besidesthealreadypre-installedtargetsetsforthefivepaperclasses(1.),thelistcanalsocontainindividualtargetsets(2.),whichhavebeenalreadyeditedusing“Settings Measuring conditions Targetvalues/Tolerances”(seep.31f.).Theinformationboxontheleftsideofthemenuwindowshowsallcolorswhichbelongtoatargetsetandtheirtargetvalues.
Individual targetvaluesandadmissibletolerancescanbeeditedandmeasuredforeachprintingunit.Whenatargetsethasbeenconfirmed,justclickonthebuttonabovetheprintingunit(3.). Itchangesintoan“Edit”button,whichopensthefollow-ingwindow:
1.
3.
2.
Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page47
Measurement of a print job
Measure – Density
Thisscreenwilldisplayallrelevantinformationafterascanmeasurement.Thescanmeasurementcanbestartedbypressingthegreenmeasurementbuttononthedevice.
1.Detailedinformationforeveryinkzonebypointingonthebargraph.
2.Measurementvaluesoutoftolerancewillbemarkedwithredtop.
3.Thissectiondisplaysindetailtheaveragevaluesofthemeasurementparametersofthesingleprintingunits.
1.
2.
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Structure of the command line
Onthebasisofthecommandlineofthemenusection“Printjob Measure Density”allcommandoptionswillbeexplained.Theorderandtheavailabilityoftheparticularcommandoptionscanvaryinthedifferentmeasurementmenus,buttheyhavealwaysthesameeffect.
1.Thewhitepatchshowsaftereachmeasurementwhichwascarriedout,thenumberofthismeasurementautomatically.Usingthearrowbuttonsonecannavigatethroughthealreadymademeasurementsofaprintjob.
2.Clickingonthebuttonwiththeprintericonopenstheconnectiontotheprinter,whichhasbeenalreadydefinedin“SettingsSystem/Software”.Theprinteroptionallowstoprintoutthedisplayedwindow.
1.2.3.4.5.6.7.
1.2.3.4.5.
Theinfosectionofthemenuitemdensitymeasurementshowsindetailthefollowingparameters:
1.Soliddensity2.Printingcontrast3.Dotarea80%4.Dotarea40%5.Slur/doublingfactor
Inthemeasurementmenus”Colorimetric”and“InkCheck”therelevantparametersforthesemeasurementsaredisplayed.
Red,yellowandgreendots,locatedaheadoftheaveragevalues,showfundamentalproblems.Greendotsindicatevalueswithinthetolerance.Reddotsshowvaluesoutoftolerance.Valuesclosetothetolerancelimit(75%)aremarkedbyyellowdots.
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3.Thesebuttonscanoptionallydeletethecurrentmeasurementorallmeasurementsofaprintjob.
4.Thebutton“Maskinkzones”opensawindow,whereoptionallysingleinkswithintheinkzonesorcompleteinkzonescanbemasked.Pleasenotethatthemaskedinkzoneswillnotbetakenintoaccountforthecalculationofthereportstatistics.
5.“Exportmeasurement”startstheexportintoanotherapplication(seep.36).
6.“SetOK-sheet”,definestheOK-sheet,whichissetinsteadofthetargetset.WhensettingtheOK-sheet,itwillbenumberedtothecorrespondingmeasurementandwillbedisplayedinthelowerstatusline.Nowthebuttonswitchesto“DeleteOK-Sheet”andservesforthisfunction.
7.“Totopside”respectively“toreverseside”switchesbetweentop-andreverse-printing,ifapresswithareversingafteraprintingunithasbeenselected.
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Measure – Gray balance (densitometric)
Whenmakingameasurementonagraybalancepatch,thereferringdensityvaluesfortheprocesscolors(withoutK)areshowninabargraph.ThevaluesforCyan,MagentaandYellowshouldbeincloserangetoeachothertoensureaneutralgraybalancewithoutacolorhue.Itisimportantthatthegraybalancepatch,onwhichthemeasurementistaken,comprisestheright%-valuestoachieveaneutralgraywhenprintedcorrectly.TheprocessstandardISO12647foroffsetprintdefinesthevaluesas:C=50%,M=40%andY=40%.
ThecolorbarsTECHKONTCSDigitalincludeagraybalancepatchcompliantwithISO12647ineveryinkzone.ThegraybalancedisplaywillshowdensitometricgraybalancevaluesforCMYinabargraph.
Ataglancetherecanbediagnosed,iftheoverprintofCMYisaneutralgrayorifithasacolorcast(1.).
1.
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Measure – GrayGuide (according to Gracol G7™)
TheGrayGuidefunctionisaveryusefulfeaturewhencontrollingaprintingpress accordingtotheGracolG7™method,whichisespeciallycommonintheUSA.Itrequirestheuseofanappropriatecolorbar.
1.In“Graymodedisplay”G7™hastobeselectedin“SettingsSystem/Software”,tomaketheGrayGuidefunctionavailableinthemenubar.
Inthefollowingexampletheadjustmentrecommendation(1.)shows,thatallofthethreeinksCMYhavetobeincreasedtomatchtheGracoltargets.
1.
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1.2.
3.
Measure – Colorimetric (ExPresso Pro)
ThankstothespectralperformanceofSpectroJetitispossibletocalculateanddisplaycolorimetricvaluesaswell.Measurementsincolorimetrymodeshavetheadvantageofanabsolutedescriptionofcolorbasedoncharacteristicvalues.Soitispossibletomeasurespotcolorsaswell.
Colorimetricmeasurementsreferinmostcasestothemostpopularcolorsystemintheprintingindustry:theCIEL*a*b*colorspace.ThecolordistanceDE describes howclosetwocolorsmatch.Avalueof0meansthattwocolorsareidentical.Itcanbedefinedinthe“Measurementsettings”(seep.34)accordingtowhichDE formulathecolordistanceiscalculatedbyExPresso.
1.Detailedinformationforeveryinkzonebypointingonthebargraph.
2.Averagevaluesforallinkzones.
3.Measurementvaluesoutoftolerancewillbemarkedwithredtop.
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Measure – InkCheck (ExPresso Pro)
Densitometricvaluesareadirectmeasurefortheinkappliedonthepaper.Theyareveryprocess-related,althoughtheyarerelativevaluesonly.ColorimetricvaluesasrecommendedinprintstandardISO12647areabsolutevalues,buttheyarenotsuitedtousethemforhandlingtheprintingprocess.Thankstothespectralmeasure-menttechnologyofSpectroJet,theveryuseful“InkCheck”functioncombinesthebestofbothworlds:SpectrallybasedrecommendationshowtosettheinkkeysasusedfromdensityinordertomeetcolorimetrictargetsrequiredforprintingwithinISOstandards.
Inthiscasethereistoomuchyellowinkappliedininkzone7.Inordertoachievealower DE,thedensityhastobereducedby0,10fromD=1,42toD=1,32.ThatreducesDEfrom3,8to1,78.
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Spot measurement
Tocarryoutaspotmeasurementsjustpositionthedevicewiththemeasurementheadonasinglemeasurementpatchandpressthegreenmeasurementbuttonshortly.DuringthemeasurementprocessallLEDsflashupsimultaneously.Adoublesoundconfirms,thatthemeasurementiscompletedandthemeasurementdataaredisplayedbytheExPressosoftwareinthewindow“Spotmeasurement”inthesub-menu“Sample”.
Allrelevantdensity-andcolorimetric-valuesareshownhereveryclearyandcanthereforebeinterpretedataglance.Themaximumdensityaccordingtothewavelengthisdisplayedaswell.
Inthemenu“SpotmeasurementReference”(seep.55)areferencecanbeselect-edforthemeasuredcolor.Thiscanbeasecondmeasurementoranalreadydefinedink(seep.27).
Thewindow“SpotmeasurementDeviationD”(seep.55)displaysthedeviationofthemeasurementvaluesofthesampletotheselectedreference.Thedensitometricandcolorimetricnumericalvaluesaresupplementedbyagraph.
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Analyze
Thefunctionsinthe“Analyze”menuservetoanalyzesinglemeasurementsorcom-pleteseriesofmeasurements(printjobs).“Singlemeasurementreport”and“Jobreport”areusedinregardtoindividuallydefinedtargetsetsandtolerances.“ISO-reportsinglemeasurement”and“ISOjobreport”includeadditionallythecompliancewithtargetsetsandtolerancesaccordingtotheinternationalstandardfortheprintingprocesscontrolISO12647.Theresultingevaluationsofthedifferentanalysescanalsobeprintedoutinsocalledreports.
ISO-report single measurement (ExPresso Pro)
3.
2.
4. 7.5. 6.
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Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet Page57
“ISO-reportsinglemeasurement”includestwosections:DE*a*b*-soliddensityanddotgain.Thedotgainisdocumentedfor40%and80%andthemidtonespreadisvisualizedgraphically.
1.Greendotsindicatethatthevaluesarewithintolerance2.Displayofthecolorgamut3.Tonal%curves4.Selectionofmeasurementtobeanalyzed5.Function“Maskinkzone”(seep.49)6.Switchbetweentopsideandreverseside(ifavailable)7.Printsreports
ISO job report (ExPresso Pro)
ThejobreportaccordingtotheISOstandardallowsthedocumentationofthewholeprintingprocessduringtheentireprintjob.Youcanchoosebetweenasummary(1.)andthedisplayofdetailedreportsofsingleparameters,whichyoucanselectfromthepull-down-windowinthelowerleftcornerofthemenuwindow.
1.
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Window:withdetailedinformation“ISOjobreport”forDEandselectedmeasure-mentno.7:
Agreendotindicates,thatthemeasurementvaluemeetsthetolerance.
Theexampleshowsareddotinthemeasurementseriesno.9(1.),whichsignalizesameasure-mentvaluewhichisoutoftolerance.Thisisalsoindicatedbythefactthatthepositionofthedotisfarabovethebaseline.
Thevariationwithinasheetisdescribedbyaverticallinewithinthedot.Theheavierthevaria-tion,thelongertheverticalline.
1.
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Usingthebutton“Maskinkzones”inthelowerpartofthemenuwindow(seep.57)youwillswitchtothe“Maskinkzones”function.HereyoucandefinewhichOK-sheetwillbethestartingpointfortheevaluationoftheprintjob.Optionallyameasurementcanbeselectedtoserveasstartingpoint.Thisfunctionisavailableforthetopsideaswellasforthereverseside.
Single report measurement
“Singlemeasurementreport”canbecomparedwith“ISO-reportsinglemeasure-ment”,buttheevaluationitdoesnotrefertotheISOstandard.Thereforetheinfor-mationsections“Soliddensity”and“Dotgain”referonlytoindividuallydefinedtargetsetsandtolerances.Uptoeightcolorcanbedisplayed,e.g.CMYKandfourspotcolors.
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Job report
“Jobreport”isanevaluationofthewholeprintjobinregardtothetargetvaluesandtolerancesaccordingtocustomerstandards.
Youcanchoosebetweenasummary(seethepicturebelow)andthedisplayofsingleparameterse.g.dotgain40%,dotgain80%,slur/doubling,contrastandDE(ExPressoProonly),whichyouselectbyclickinginthepull-down-menuinthelowerleftcornerofthemenuwindow(1.)(seepage58forfurtherinformation).
1.
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Exit
Justpressthe“Exit”buttontoquittheExPressoapplication.
Awindowforconfirmationwillappear:
Thereisnoneedtoactivelysavea“Printjob”orsettingsmade.SinceExPressohasan“autosave”functionality,alldataissecurelystoredalready.
TECHKON
Specifications can be subject to change without notice. All mentioned trademarks and copyrights are recognized. SpectroPlate, SpectroDens, SpectroJet, SpectroDrive, SpectroCheck, InkCheck and TECHKON are registered trademarks of TECHKON GmbH.
Measurement technologySpectral remission measurement and color density determination to ISO 5-3/4
Measurement geometry0/45° optics to DIN 5033
Spectral range400 to 700 nm in 10 nm steps
Measurement aperture1,5 mm, appropriate for measuring patches with at least 3 mm height and 3 mm width.UV cut filter optional
Light sourceGas-filled lamp, type A illumination
Polarization filterTwice linear crossed, switched on and off per software command
Measurement timeApproximately 160 mm/s for 4 mm patches (equals approximately 3 seconds for 520 mm sheet length), approximately 400 mm/s for 8 mm patches; single measurement approx. 1 second
Scanlengthmax. 2000 mm
White referenceAbsolute and relative
Illumination types / Standard ObserverA, C, D50, D65, F 2/7/11 / 2°, 10°
Density filterDIN 16536, DIN 16536 NB, ISO/ANSI T, ISO/ANSI I, ISO E, spectral density Dmax
Density measurement range0,00 D – 2,50 D
Repeatability0,01 D0,03 CIE ∆E*a*b*
Production spread0,01 D0,3 CIE ∆E*a*b*
Data transmissionUSB-connection
Power supplyAC adapter, 100 – 240 V, 47 – 63 Hz
WeightMeasurement device: 360 grams
Dimensions:see page 8
Contents of delivery:see page 9
Software TECHKON ExPresso Delivery on CD with software protection key (USB-dongle) and CD with print control strip TECHKON TCS DigitalSystem requirements: Windows XP, VistaRecomm. touchscreen: Elotouch 1727L 17"
Manufacturer certificate
applicable for ISO 9000 documentation
Device: Scan-Measurement device TECHKON SpectroJet
Serial Number:
Manufacturer: TECHKON GmbH • Wiesbadener Str. 27 • D-61462 Königstein Telephone: +49 (0)6174 92 44 50 • Telefax: +49 (0)6174 92 44 99 E-mail: info@techkon.com • http://www.techkon.com
Certification: The device is compliant with R&TTE directive 1999/5/EC concerning the electromagnetic compatibility EMC and is provided with the CE label. The device is RoHS compliant (class 9). Standards: • German Standard (DIN EN): DIN EN 61000-4-6:2008-04 • European Standard: EN 61000-4-6:2007 + Corrigendum August 2007 • IEC/CISPR-Standard: IEC 61000-4-6 + A1:2004 + A2:2006 • EN61000-4-2 and 4-4 • EN 55022:2006 + A1:2007 2008-05 • EN 55024:1998+ A1:2001 + A2:2003 in parts 2003-01 • 47CFR15 2008-07 • ICES-003, Issue 4 2004-02
The supplied AC adapter is according to regulations UL, IP 40, IEC 950 and VDE EN-EC10. The device ist to be used only with original TECHKON SpectroJet AC Adapter, 7,5 V DC, Part no.: FRIWO FW 75550/08.
Maintenance: The device is maintenance free. The measurement aperture has to be kept clean from dust. It can be cleaned with clean, compressed air and an optics brush.
We recommend a functionality check-up every 24 months at the TECHKON service center, which includes the issue of a new Manufacturer certificate.
Warranty: The warranty for TECHKON products is 24 months starting with the date of purchase. The warranty is invalid if the damage is caused by improper use of the device. Only original TECHKON spare parts and accessories are to be used.
Recycling: The device is according to §14 ElektoG registered under the EAP no.: DE 98280049. Devices for disposal can be sent directly to the manufacturer.
Calibration: The integrated spectral sensor is calibrated by a white calibra- tion. After performing a white calibration with the supplied absolute white standard integrated in the charging console, the device is long term stable. We recommend to make a white calibration before every measurement series, to ensure the device is calibrated correctly.
The remission values documented on back of the charging console are derived from a ceramic white standard, which is referenced to measurements taken and certified by the German Institute for Material Testing (Bundesanstalt für Materialprüfung, BAM).
Standards: The measurement device is manufactured according to the recommendations of the technical standards DIN 5033 part1-9, CIE, DIN ISO 16 536 part 1+2 and ISO 5-3.
The accuracy of the device is checked during the manufacturing by spectral measurements on color samples which were measu- red and certified by the German Institute for Material Testing (Bundesanstalt für Materialprüfung, BAM).
The calculation of colorimetric values is according to the for- mulas and tables of DIN 6174, DIN 5033 part 1-9 and CIE.
The calculation of densitometric values is according to the for- mulas and tables of DIN 16527 part 3, ISO 5-3 and the hand- book of standardization of the German Printing and Media Industries Federation (Bundesverband Druck und Medien e.V.) and fogra (Forschungsgemeinschaft Druck e.V.).
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D-61462 Königstein
TEC
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