22 2-442-44Technology > Image Formation System > Overview > SpecificationsTechnology > Image Formation System > Overview > SpecificationsImage Formation SystemOverview■ OverviewToner image is formed by the magnetic, 1-component toner projection developing method inimage formation system.To ensure high quality print, this machine introduces the following new technologies:• Small-diameter tonerHigh resolution by fine-grained toner• Belt transfer methodImproved transfer/feeding performance by the belt feeding• The shutter mechanism is added to the Primary Charging Assembly and the Pre-transferCharging Assembly.This prevents discharge products from attaching on the Drum, thus prevents image failurejust after startup.• Improved accessibility to the periodically replaced / durable parts provides increasedserviceability.Drum Cleaning Unit Primary ChargingAssemblyDevelopping AssemblyLaserETBPaperPhotosensitiveDrumPre-transferCharging AssemblyF-2-59■ Specifications● Basic SpecificationsItem Function/MethodPhotosensitive Drum Material A-SiDrum diameter 84 mm diameterCleaning Cleaning BladeProcess speed iR-ADV 6075: 350 mm/seciR-ADV 6065/6055: 290 mm/secSeparation method Curvature separation + separation clawDrum Heater Yes (42 +/- 2 deg C)Drum HP detection YesDeveloping Assembly Developing method Dry, 1-component toner projection methodDeveloping Cylinder iR-ADV 6075/6065/6055 series1 cylinder (single-developing method)24.5 mm diameterToner Magnetic negative tonerToner level detection Yes (magnetic sensor)Primary charging Charging method Corona charging (2 charging wires + grind wire)Cleaning Cleaning Pad (charging wire)Shutter YesPre-transfer charging Charging method Corona charging (1 charging wire)Cleaning Cleaning Pad (charging wire)Shutter YesTransfer method Direct transfer (ETB: Electrostatic Transfer Belt)ETB Unit Material CR rubber + urethane resinCircumferential length 298.5 mmCleaning Brush Roller + Cleaning BladeTransfer method Transfer Roller (sponge roller)Separation method Curvature separation + static eliminatorDisengagementmechanismYesWaste TonerContainerCapacity Equivalent to 1 million sheetsFull-level detection YesPresence/absencedetectionNoToner Container Method Set-on (manual)Patch Sensor NoT-2-25