List of Fan---------------------------------------------------------------------------4-35List of Sensor ----------------------------------------------------------------------4-39Lamp / Heater, others ------------------------------------------------------------4-47List of Switch -----------------------------------------------------------------------4-51List of PCB--------------------------------------------------------------------------4-54Connector List ---------------------------------------------------------------------4-65Main Controller -------------------------------------------------------------- 4-92Removing the HDD ---------------------------------------------------------------4-92Removing the Main Controller PCB 1 ---------------------------------------4-94Removing the Main Controller PCB 2 ---------------------------------------4-97Opening the Controller Box ----------------------------------------------------4-99Laser Exposure System ------------------------------------------------- 4-101Cleaning the Dust-proof Glass ---------------------------------------------- 4-101Removing the Laser Scanner Unit------------------------------------------ 4-104When replacing the Laser Scanner Unit ---------------------------------- 4-121Image Formation System ----------------------------------------------- 4-122Removing the Developing Assembly (Y) / (M) / (C) and the Drum Unit (Y)/ (M) / (C) -------------------------------------------------------------------------- 4-122Cleaning the Toner Catch Sheet (Y) / (M) / (C)-------------------------- 4-130When Replacing the Drum Unit (Y) / (M) / (C) --------------------------- 4-131Removing the Developing Assembly (Bk) -------------------------------- 4-132When Replacing the Developing Assembly ------------------------------ 4-139Cleaning the Toner Blocking Plastic Film in the Developing Assembly ---4-140Removing the Primary Charging Assembly ------------------------------ 4-141When replacing the Primary Charging Assembly ----------------------- 4-143Removing the Grid Plate ------------------------------------------------------ 4-146When replacing the Grid Plate----------------------------------------------- 4-147Removing the Grid Cleaning Pad ------------------------------------------- 4-148Removing the Primary Charging Wire Cleaning Pad Holder -------- 4-150Removing the Primary Charging Wire Cleaning Pad Slider---------- 4-151Replacing the Primary Charging Wire ------------------------------------- 4-152Cleaning the Primary Charging Assembly -------------------------------- 4-155When Replacing the Primary Charging Wire ---------------------------- 4-156Replacing the Primary Charging Wire Unit ------------------------------- 4-157When Replacing the Primary Charging Wire Unit ---------------------- 4-159Removing the Pre-Transfer Charging Assembly ------------------------ 4-160When replacing the Pre-Primary Transfer Charging Assembly ----- 4-161Removing the Pre-Transfer Charging Wire Cleaning Pad Holder and thePre-Transfer Charging Wire Cleaning Pad Slider ---------------------- 4-162Replacing the Pre-Transfer Charging Wire ------------------------------- 4-164Cleaning the Pre-transfer Charging Assembly -------------------------- 4-166When Replacing the Pre-Primary Transfer Charging Wire ----------- 4-167Caution When Handling Photosensitive Drum Unit -------------------- 4-168Removing the Drum Unit (Bk) ----------------------------------------------- 4-169Removing the Drum Cleaning Unit ----------------------------------------- 4-173Removing the Drum Cleaning Blade (Bk), Edge Seals (front) / (rear) -----4-174Removing the Drum (Bk)------------------------------------------------------ 4-175Cleaning the Toner Catch Tray (Bk) ---------------------------------------- 4-177Measures in the Drum (Bk) replacement --------------------------------- 4-178Removing the Drum Cleaning Scoop-up Sheet ------------------------- 4-179Removing Edge Scraper 1 (Bk) and Edge Scraper 2 (Bk) ----------- 4-181Removing the Drum Fur Brush ---------------------------------------------- 4-182Adjustment When Installing/Removing the ITB Unit ------------------- 4-185Removing the ITB Unit -------------------------------------------------------- 4-186Removing the ITB Cleaning Blade ----------------------------------------- 4-191Checking When Replacing the ITB Cleaning Blade-------------------- 4-192Removing the ITB Cleaning Unit -------------------------------------------- 4-193Removing the ITB--------------------------------------------------------------- 4-194Cleaning in the ITB replacement -------------------------------------------- 4-200When Replacing the ITB ------------------------------------------------------ 4-202Removing the Primary Transfer Roller ------------------------------------ 4-203When Replacing the Primary Transfer Roller ---------------------------- 4-206Removing the Secondary Transfer Inner Roller ------------------------- 4-207Removing the ITB Internal Scraper Holder ------------------------------- 4-210Cleaning the ITB Inner Scraper --------------------------------------------- 4-211Removing the Drum Heater Unit -------------------------------------------- 4-212Removing the ITB Motor ------------------------------------------------------ 4-213Removing the Patch Sensor Unit ------------------------------------------- 4-214When Replacing the Patch Sensor Unit----------------------------------- 4-216Cleaning the Patch Sensor Unit --------------------------------------------- 4-217