ContentsContents7.1 Construction ...................................................................................................................................................................7-17.1.1 Specifications of the Image Formation System ........................................................................................................................... 7-17.1.2 Major Components of the Image Formation System ................................................................................................................... 7-17.2 Image Formation Process...............................................................................................................................................7-27.2.1 Image Formation Process (outline) .............................................................................................................................................. 7-27.2.2 Image Formation Process (image formation) .............................................................................................................................. 7-37.3 Basic Sequence ..............................................................................................................................................................7-37.3.1 Sequence of Operation (initial rotation) ...................................................................................................................................... 7-37.3.2 Sequence of Operation (initial rotation) ...................................................................................................................................... 7-47.3.3 Sequence of Operation (copying) ................................................................................................................................................ 7-47.3.4 Sequence of Operation (copying) ................................................................................................................................................ 7-57.3.5 Sequence of Operation (last rotation) .......................................................................................................................................... 7-57.3.6 Sequence of Operation (last rotation) .......................................................................................................................................... 7-57.4 Image Stabilization Control ...........................................................................................................................................7-67.4.1 Overview...................................................................................................................................................................................... 7-67.4.2 APVC Control.............................................................................................................................................................................. 7-67.4.3 ATVC Control ............................................................................................................................................................................. 7-67.5 Drum Unit ......................................................................................................................................................................7-67.5.1 Charging Mechanism ................................................................................................................................................................... 7-67.5.1.1 Controlling the Primary Charging Bias...........................................................................................................................................................7-67.5.1.2 Primary Charging Roller Cleaning Mechanism..............................................................................................................................................7-77.6 Drum Cleaner Unit.........................................................................................................................................................7-77.6.1 Photosensitive Drum Cleaning .................................................................................................................................................... 7-77.7 Developing Unit.............................................................................................................................................................7-77.7.1 Controlling the Developing Bias ................................................................................................................................................. 7-77.8 Toner Container .............................................................................................................................................................7-87.8.1 Overview...................................................................................................................................................................................... 7-87.8.2 Route of Toner Supply................................................................................................................................................................. 7-87.8.3 Controlling the Drive of the Toner Cartridge .............................................................................................................................. 7-97.8.4 Toner Supply Control .................................................................................................................................................................. 7-97.8.5 Recovery Sequence .................................................................................................................................................................... 7-107.8.6 Toner Level Detection ............................................................................................................................................................... 7-107.9 Transfer Unit ................................................................................................................................................................7-107.9.1 Outline of the Transfer Unit....................................................................................................................................................... 7-107.9.1.1 Outline...........................................................................................................................................................................................................7-107.9.2 Controlling the Transfer Bias..................................................................................................................................................... 7-107.9.2.1 Transfer Roller Bias Control .........................................................................................................................................................................7-107.9.3 Cleaning ..................................................................................................................................................................................... 7-117.9.3.1 Transfer Roller Cleaning Mechanism ...........................................................................................................................................................7-117.9.4 Separation Mechanism............................................................................................................................................................... 7-117.9.4.1 Controlling the Static Eliminator Bias ..........................................................................................................................................................7-117.10 Transfer Mechanism ..................................................................................................................................................7-117.10.1 Transfer Guide Bias ................................................................................................................................................................. 7-117.10.1.1 Transfer Guide Bias Control .......................................................................................................................................................................7-117.11 Photosensitive Drum Cleaning...................................................................................................................................7-117.11.1 Outline...................................................................................................................................................................................... 7-117.11.2 Collection of Waste Toner ....................................................................................................................................................... 7-117.11.3 Checking the Waste Toner Box ............................................................................................................................................... 7-117.12 Parts Replacement Procedure.....................................................................................................................................7-127.12.1 Pre-Exposure Lamp ................................................................................................................................................................. 7-12
