HPScitexFB7500WeeklyMaintenance
CleaningthePrintingBridge
Afteracertainperiodorafteracertainnumberofprints,youcanseebuild-upofdust,driedink,and
dirtonthenozzlesplateoftheprintheadsandsurroundingpartsofthebridge.Thismaynegatively
affectsprintqualityaswellasfunctioningofdifferentsystemsonthebridge.Cleaningtheprinting
bridgeonaweeklybasiswillhelpyoutomaintaingoodprintqualityandpreventtheprintheadsand
bridgecomponentsfromdamage.
Dirtinessoftheprintingbridgemaybecausedbythefollowing:
?Dirtysubstrates,residuesoffibers
?Dirtyanddustyenvironment
?Inkspraying
?Inkdrippingsbetweentheinkbarswhileliftingthebridgeforthemaintenanceprocedures
?Dysfunctionofthevacuumknife
?Dirtfromtheprintingtable
Thepreventivemaintenanceoftheprintingbridgeshouldbeperformedonceaweek.
Tocleantheprintingbridge:
1.Movethetabletoitshomeposition.
2.Shutdownthemachine.
3.Closethetapsonthesecondaryinktanks.
4.Opentheupperhoodsoftheprintingbridge.
5.DisconnecttheextractionductfromthetopoftheUVhousing.
Extractionduct
6.Liftthebridge.
7.Visuallyinspectthebridgecomponentstoidentifythedirtyareas.
8.Cleanthedirtycomponentsasdescribesinthefollowingsections.
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9.If,aftercleaningiscomplete,theHeadSignatureshowsalargenumberofmissingnozzles,
manuallywipetheseprintheadsasdescribedin“ManuallyWipingthePrintHead”intheFB7500
OperatorManual.
CleaningtheGuards
Removethe
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