Chapter 22-8F-2-122.3.1.2 Image Formation Process 0007-4977An image formation process is the basic procedures of operations for image formation.The process can be divided into 5 blocks and 12 steps. By performing steps in each block, a toner image is formed on paper.The following are the blocks and steps of the image formation process.F-2-131) Electrostatic latent image formation blockForms an electrostatic latent image on the photosensitive drum.Step 1: Primary charging - A uniform negative charge is applied onto the surface of the drum.Step 2: Laser beam exposure - An electrostatic latent image is formed on the drum.2) Developing blockTurns an electrostatic latent image on the drum to a visible image by applying the toner onto it.Step 3: Auxiliary developmentStep 4: Development3) Transfer blockTransfers a toner image on the drum on paper.Step 5: Primary transfer - Toner on the drum is transferred to the ITB.Step 6: Secondary transfer - Toner on the ITB is transferred to paper.Step 7: Separation - Paper separates from the ITB.4) Fixing blockFuses a toner image onto paper.Step 8: FixingPhotosensitivedrumITBFixing unitDevelopingrotaryBladeMemory tagPrimary transferrollerSecondary transferrollerImage cartridgeToner cartridge Primary charging rollerVDOMemory tagDCNT boardSCNT boardH.V.TPrint commandVIDEOsignalSUB-H.V.TITBcleaningrollerAuxiliaryITB cleaningrollerDevelopingcylinder4. Fixing block 3. Transfer block1. Electrostatic latent image formation block2. DevelopingblockDelivery8. Fixing12. Drum cleaningRegistration9. Auxiliary ITB cleaning roller chargingMulti-purpose tray pick-upPaper pathDirections of rotationITBPhotosensitivedrum5. Primary transfer6. Secondary transfer5. ITB cleaning block10. ITB cleaning roller charging11. ITB cleaning7. Separation1. Primary charging2. Laser beam exposure4. Development3. Auxiliary development
