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Basic laser cartridge

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Basic laser cartridge Basic laser cartridge Document Transcript

  • Basic Laser Cartridge Agitator Imaging Waste Section Toner Toner DoctorSupply Hopper PCR Blade Laser Beam Hopper Wiper Developing Heating Blade Section Element Stationary Magnet OPC “Drum” Magnetic Roller Sleeve Recovery Blade Transfer Direction Paper Upper and Lower Static charge Charge Fuser Rollers Eliminator Roller The Laser cartridge is a two part shell; Imaging Section (Waste Toner Hopper) and the Developing Section (Toner Supply Hopper). The Imaging Section has : Photosensitive Drum, Wiper Blade, Recovery Blade Primary Charge Roller, Waste Toner Hopper & Electrical Contacts The Developing Section has : Magnetic Roller, Doctor Blade, Toner Agitator Bar, Low Toner Bar (some), Toner Supply Hopper & Electrical ContactsA negative charge is applied to the O.P.C. by the P.C.R. Laser then writes to O.P.C. leaving apositive image. Negative toner from MRS is attracted to the positive image on the drum.The thickness of toner on M.R.S. is controlled by the doctor blade. Paper passes under theO.P.C. with a positive charge from transfer roller. The image from the O.C.P. jumps from thepage, then passes across a fuser/static charge eliminator baking the image on the page as itremoves the positive charge.About 95% of the toner is transferred to the page and the remaining toner on the O.C.P. isremoved by the wiper blade, caught by the recovery blade then falls into the waste tonerhopper. This leaves the O.P.C clean and ready to take the next image.