Samsung ProXpress M387 Series - Image Creation

2.ProductSpecications
2.2.4.2.ImageCreation
1)Printingprocessoverview
ThismonoprintingsystemincludestheLSUwithalaserbeam,atonercartridgeandtransferroller.
Thismachineusestonercartridgeandlaserbeamformonoprinting.
M337x/M387x/M407xserieshas2typesoftonercartridge.M3370/M3870/M4070/M4072FDserieshastheintegrated
tonersystemandM3375/M3875/M4075serieshasseparatedtonersystem.Theseparatedtonersystemconsistsoftoner
cartridgeandimagingunit.TheimagingunithasanOPCdrum,cleaningbladeetc.
TheOPCdrumischargedwithanegativevoltagebythechargerollerandisexposedbythelightfromtheLSU(Laser
Scanningunit).ThelightproducedbyalasercreatesalatentimagebydischargingonthesurfaceoftheOPCdrum.The
negativelychargedtonersareattractedtothelatentimageduetoandelectriceld.Thetoners(realimage)ontheOPCdrum
aremovedtothetransfermediabythepositivebiasappliedtothetransferroller.
1)ChargingtheOPCdrum:Thechargerollergivesthedrumnegativecharges.
2)Laserexposure:LightproducedbyalaserdiodeirradiatesthechargedOPCthroughthelensandmirrors.
3)Development:Thismachineusesadual-componentdevelopmentsystem.Themagneticrollercarriesnegatively
chargedtonertothelatentimageonthedrumsurface.
4)Transfer:ThetransferrollersoppositetheOPCdrumstransfertonerfromthedrumstothetransfermedia(e.g.paper,
OHPlm,etc).
5)CleaningforOPCdrum:Thecleaningbladeremovesremainingtonersonthedrumsurfaceafterimagetransfer
tothepaper.
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