Samsung SL-M2885FW - Page 52

2.Productspecandfeature
FirmwareSideismadeupof
1)NetworkInterfaceCardisthatrelaythecommunicationbetweenHostandkernelusingvariousnetworkprotocol.
2)Kernelisthatmanagestheowcontrolofemulationprocedure,receivingdatafromHostorNetworkcardandprinting
withengine&renderingjob.
3)Emulationisthatinterpretsthevariousoutputdatafromselectedemulation.
4)Engineisthatprintsrenderedbit-mapdatatopaperwithrequiredsizeandtypebyKernel.
Andthen,forJobSpoolingfunctionforMulti-User,Multi-PrintingthatisoccurredinNetworkprintingandvarious
additionalprintingfunctions,thisKernelusemax.10Queuingsystemsinamemory.
InPrinting,thetwoproceduresare
1)CaseofusingUSBPort
•AfteruserstarttoprintthewanteddocumenttoPCLstringorcompressedGDIbit-mapdata,theDrivertranslates
theallgraphicdataoftheclientPCandsenddatatohostspooler.Andthenthespoolersendsthedatastreamto
theprinterviaUSBport.
•KernelreceivesthisdatafromHost,andthenselectemulationttodataandstartselectedone.Afteremulationjob
end,Kernelsendstheoutputbit-mapdatatoEngineusingPrinterVideoController(byclocktypeforLSU).
•Engineprintthereceiveddatatorequiredpaperwiththesequentialdevelopingprocess.
2)CaseofusingNetworkInterfaceCard
•AfteruserstarttoprintthewanteddocumenttoPCLstringorcompressedGDIbit-mapdata,Drivertranslatethe
allgraphicdataofitandsenddatatohostspooler.
•Ifso,PortmonitormanagingnetworkportreceivesdatafromspoolerandsendsadatastreamtotheNetwork
InterfaceCard.
•NetworkinterfacecardreceivesitandsendtoKernelpart.
•KernelreceivesthisdatafromHost,andthenselectemulationttodataandstartselectedone.Afteremulationjob
end,Kernelsendstheoutputbit-mapdatatoEngineusingPrinterVideoController(byclocktypeforLSU).
•Engineprintthereceiveddatatorequiredpaperwiththesequentialdevelopingprocess.
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