TECHKON - GamutGear · The supplied software TECHKON SpectroConnect displays clearly all measurement values on the computer screen, which are transferred by SpectroJet via an USB

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:[email protected]•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, printing contrast and gray balance • TECHKONExPressoPC-softwarecan be operated with or without the touchscreen

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


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


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“.


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.


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.


1. Releasethetwoscrewscompletelysotheycanbetakenout.Nowtheaperturecanbeliftedfromthemeasurementhead.

2. Whendisassemblingorassemblinganaperture take care that no dust enters the opticalelements.Donotpressthescrewstootightinordertoavoiddamagingthethreads.

Exchanging apertures

Themeasurementaperturecanbereplacedforcleaningpurposes.Aspecialscrew-drivertypeTORXT6isrequiredandwhichisincludedintodelivery.

• Forthedisassemblyandassenblyoftheapertureturntheinstrumentupsidedown.Useasoftclothasprotectivelayertoavoidanyscratchesofthecase-surface.

• AftereachcleaningoftheapertureanewwhitecaIibrationhastobecarriedout.


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.


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


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:


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.


3.4 Software settings

WhenthesoftwareisstartedbyadoubleclickontheTECHKONExPressoicon,thesoftwareroutinechecksfirst,whiledisplayingtheintroicon,whetherameasurementdeviceandadongleareconnected.

Ifthesoftwaredoesnotdetectanymeasurementdevice,aninformationwindowrequestsyoutoconnectthemeasurementdevicetothePCortoselectanothermeasurementdeviceoutofthesettingsmenu.Inthemenuitem“Settings Measur-ing conditions Measurementdevices”thereisalsotheoption“SpectroDriveSimu-lator”toyourdisposal.Pleasekeepinmind,thatthesimulatorprovidesonlyvirtualmeasuringdatafortest-anddemopurposes.


1.

2.

3.

Ifyouhavenotdefinedanyprintingmachineinthemenusection“Settings Printing conditions Presses”uptonow,youwillseethefollowinginfowindow:

Youcansetupaprintingmachinewhichfitstoyourprintjob,byclickingonthe“New”buttoninthemenuitem“Presses”.Whenithasbeeninstalledandsaved,thenewprintingmachineappearsinalistingintherightsectionofthemenu,whereitisathandifyouwishtochangethepresssettingslater.


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.


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.


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”.


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.


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.


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.


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.

2.


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.


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.


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.


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.


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.


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.


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.


• 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.


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.


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.


Make ready – Press / Inks

Selectapress,whichyouhavealreadydefinedin“Settings Measuring conditions Presses”(seep.24and26)andfilltheprintingunitsvirtuallywithink(1.).

Aninkingunitcanbekeptemptyaswell(2.).Forexampleifa6-colorpressisusedonlyforCMYK-print,thelasttwoprintingunitscanremainempty.

1.

2. 3.


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.


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.


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.


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.


Measurement of a print job

Measure – Density

Thisscreenwilldisplayallrelevantinformationafterascanmeasurement.Thescanmeasurementcanbestartedbypressingthegreenmeasurementbuttononthedevice.

1.Detailedinformationforeveryinkzonebypointingonthebargraph.

2.Measurementvaluesoutoftolerancewillbemarkedwithredtop.

3.Thissectiondisplaysindetailtheaveragevaluesofthemeasurementparametersofthesingleprintingunits.

1.

2.

3.


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.


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.


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.


Measure – GrayGuide (according to Gracol G7™)

TheGrayGuidefunctionisaveryusefulfeaturewhencontrollingaprintingpress accordingtotheGracolG7™method,whichisespeciallycommonintheUSA.Itrequirestheuseofanappropriatecolorbar.

1.In“Graymodedisplay”G7™hastobeselectedin“SettingsSystem/Software”,tomaketheGrayGuidefunctionavailableinthemenubar.

Inthefollowingexampletheadjustmentrecommendation(1.)shows,thatallofthethreeinksCMYhavetobeincreasedtomatchtheGracoltargets.

1.


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.


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.


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.



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.

1.


“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.


Window:withdetailedinformation“ISOjobreport”forDEandselectedmeasure-mentno.7:

Agreendotindicates,thatthemeasurementvaluemeetsthetolerance.

Theexampleshowsareddotinthemeasurementseriesno.9(1.),whichsignalizesameasure-mentvaluewhichisoutoftolerance.Thisisalsoindicatedbythefactthatthepositionofthedotisfarabovethebaseline.

Thevariationwithinasheetisdescribedbyaverticallinewithinthedot.Theheavierthevaria-tion,thelongertheverticalline.

1.


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.


Job report

“Jobreport”isanevaluationofthewholeprintjobinregardtothetargetvaluesandtolerancesaccordingtocustomerstandards.

Youcanchoosebetweenasummary(seethepicturebelow)andthedisplayofsingleparameterse.g.dotgain40%,dotgain80%,slur/doubling,contrastandDE(ExPressoProonly),whichyouselectbyclickinginthepull-down-menuinthelowerleftcornerofthemenuwindow(1.)(seepage58forfurtherinformation).

1.


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: [email protected] • 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 calibration. 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 measured 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.).

Place Date Signature

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Documents

TECHKON - GamutGear · The supplied software TECHKON SpectroConnect displays clearly all measurement values on the computer screen, which are transferred by SpectroJet via an USB