Image Formation System ------------------------------------------------- 2-13Overview/Configuration ---------------------------------------------------------2-13Overview -------------------------------------------------------------------------------------2-13Print Process--------------------------------------------------------------------------------2-13Static Latent Image Formation Block -------------------------------------------------2-14Development Block------------------------------------------------------------------------2-14Transfer Block ------------------------------------------------------------------------------2-15Fixing Block ---------------------------------------------------------------------------------2-15Drum Cleaning Block ---------------------------------------------------------------------2-15High-Voltage Control -------------------------------------------------------------2-16Overview -------------------------------------------------------------------------------------2-16Generating Primary Charging Bias ----------------------------------------------------2-16Generating Developing Bias ------------------------------------------------------------2-16Generating Transfer Bias ----------------------------------------------------------------2-16Toner Cartridge --------------------------------------------------------------------2-17Toner Level Detection --------------------------------------------------------------------2-17Toner Cartridge Absence/Presence Detection -------------------------------------2-17Service Works ---------------------------------------------------------------------2-18At parts replacement ----------------------------------------------------------------------2-18Maintenance --------------------------------------------------------------------------------2-18Notes on service works ------------------------------------------------------------------2-18Fixing System ---------------------------------------------------------------- 2-19Overview/Configuration ---------------------------------------------------------2-19Overview -------------------------------------------------------------------------------------2-19Main Parts of Fixing assembly ---------------------------------------------------------2-19Various Control Mechanisms --------------------------------------------------2-20Fixing Temperature Control -------------------------------------------------------------2-20Protective Functions ----------------------------------------------------------------------2-20Other Functions -------------------------------------------------------------------2-22Throughput Down Control ---------------------------------------------------------------2-22Service Works ---------------------------------------------------------------------2-23At parts replacement ----------------------------------------------------------------------2-23Maintenance --------------------------------------------------------------------------------2-23Notes on service works ------------------------------------------------------------------2-23Pickup Feed System ------------------------------------------------------- 2-24Overview ----------------------------------------------------------------------------2-24Overview -------------------------------------------------------------------------------------2-24Detecting Jams --------------------------------------------------------------------2-25Jam Detection Outline --------------------------------------------------------------------2-25Delay Jam -----------------------------------------------------------------------------------2-25Stationary Jam -----------------------------------------------------------------------------2-27Other Jams ----------------------------------------------------------------------------------2-27Service Works ---------------------------------------------------------------------2-28At parts replacement ----------------------------------------------------------------------2-28Maintenance --------------------------------------------------------------------------------2-28Notes on service works ------------------------------------------------------------------2-28External And Controls System ------------------------------------------- 2-29Power Supply ----------------------------------------------------------------------2-29Power Supply -------------------------------------------------------------------------------2-29Protective Functions ----------------------------------------------------------------------2-29Service Works ---------------------------------------------------------------------2-30At parts replacement ----------------------------------------------------------------------2-30Maintenance --------------------------------------------------------------------------------2-30Notes on service works ------------------------------------------------------------------2-303 Periodical ServicesPeriodically Replaced Parts ------------------------------------------------3-2Periodically Replaced Parts ----------------------------------------------------- 3-2Consumables ------------------------------------------------------------------3-2Consumables ----------------------------------------------------------------------- 3-2Periodical Service -------------------------------------------------------------3-3Scheduled Servicing -------------------------------------------------------------- 3-3Cleaning -------------------------------------------------------------------------3-34 Disassembly/AssemblyOutline ---------------------------------------------------------------------------4-2List Of Parts --------------------------------------------------------------------4-3External View ----------------------------------------------------------------------- 4-3Front Side------------------------------------------------------------------------------------- 4-3Rear Side ------------------------------------------------------------------------------------- 4-3List of Main Unit -------------------------------------------------------------------- 4-4Reader Unit ---------------------------------------------------------------------------------- 4-4Printer Unit ----------------------------------------------------------------------------------- 4-4Electrical Components------------------------------------------------------------ 4-5Reader Unit ---------------------------------------------------------------------------------- 4-5