7.8.1.4 Others .................................................................................................................................................................................... 7- 17

7.9 Separation Mechanism .............................................................................................................................7- 18

7.9.1 Separation Charging Mechanism .......................................................................................................................... 7- 18

7.9.1.1 Overview ................................................................................................................................................................................ 7- 18

7.9.1.2 Correcting the Output to Suit the Environment and the Drum Surface Potential ................................................................... 7- 18

7.9.1.3 Others .................................................................................................................................................................................... 7- 19

7.10 Parts Replacement Procedure................................................................................................................7- 20

7.10.1 Process Unit ........................................................................................................................................................ 7- 20

7.10.1.1 Before Removing Process Unit ............................................................................................................................................ 7- 20

7.10.1.2 Removing Process Unit ....................................................................................................................................................... 7- 20

7.10.1.3 Mounting Process Unit ........................................................................................................................................................ 7- 20

7.10.2 Pre-Exposure Lamp............................................................................................................................................. 7- 21

7.10.2.1 Before Removing Pre-Exposure Lamp ............................................................................................................................... 7- 21

7.10.2.2 Removing Pre-Exposure Lamp ........................................................................................................................................... 7- 21

7.10.2.3 Cleaning Primary Toner Blocking Sheet ............................................................................................................................. 7- 21

7.10.3 Primary Charging Assembly ................................................................................................................................ 7- 21

7.10.3.1 Before Removing Primary Charging Assembly .................................................................................................................... 7- 21

7.10.3.2 Removing Primary Charging Assembly .............................................................................................................................. 7- 21

7.10.4 Pre-Transfer Charging Assembly ........................................................................................................................ 7- 22

7.10.4.1 Before Removing Pre-Transfer Charging Assembly ........................................................................................................... 7- 22

7.10.4.2 Removing Pre-Transfer Charging Assembly........................................................................................................................ 7- 22

7.10.5 Photosensitive Drum............................................................................................................................................ 7- 22

7.10.5.1 Points to Note When Handling Photosensitive Drum .......................................................................................................... 7- 22

7.10.5.2 Before Removing Photosensitive Drum ............................................................................................................................... 7- 22

7.10.5.3 Removing Photosensitive Drum .......................................................................................................................................... 7- 22

7.10.5.4 Cleaning Photosensitive Drum ............................................................................................................................................ 7- 23

7.10.6 Drum Motor.......................................................................................................................................................... 7- 23

7.10.6.1 Before Removing Drum Motor ............................................................................................................................................ 7- 23

7.10.6.2 Removing Drum Motor ........................................................................................................................................................ 7- 23

7.10.7 Photosensitive Drum Heater................................................................................................................................ 7- 24

7.10.7.1 Points to Note When Handling Photosensitive Drum .......................................................................................................... 7- 24

7.10.7.2 Before Removing Photosensitive Drum Heater .................................................................................................................. 7- 24

7.10.7.3 Removing Drum Heater ...................................................................................................................................................... 7- 24

7.10.7.4 Points to Note When Mounting Drum Heater ...................................................................................................................... 7- 24

7.10.8 Cleaning Blade .................................................................................................................................................... 7- 24

7.10.8.1 Configuration........................................................................................................................................................................ 7- 24

7.10.8.2 Before Removing Cleaning Blade ....................................................................................................................................... 7- 24

7.10.8.3 Removing Cleaning Blade.................................................................................................................................................... 7- 24

7.10.8.4 Mounting Cleaning Blade .................................................................................................................................................... 7- 25

7.10.9 Side Seal ............................................................................................................................................................. 7- 25

7.10.9.1 Before Removing Side Seal ................................................................................................................................................ 7- 25

7.10.9.2 Removing Side Seal ............................................................................................................................................................ 7- 26

7.10.10 Cleaner Scraper................................................................................................................................................. 7- 26

7.10.10.1 Before Cleaning Cleaner Scraper ..................................................................................................................................... 7- 26

7.10.10.2 Cleaning Cleaner Scraper .................................................................................................................................................. 7- 26

7.10.11 Hopper Assembly............................................................................................................................................... 7- 26

7.10.11.1 Before Removing Hopper Assembly ................................................................................................................................. 7- 26

7.10.11.2 Removing Hopper Assembly ............................................................................................................................................. 7- 26

7.10.12 Hopper Supply Motor ......................................................................................................................................... 7- 27

7.10.12.1 Before Removing Toner Supply Motor .............................................................................................................................. 7- 27

7.10.12.2 Removing Toner Supply Motor .......................................................................................................................................... 7- 27

7.10.13 Hopper Strring Motor ......................................................................................................................................... 7- 27

7.10.13.1 Before Removing Hopper Stirring Motor ........................................................................................................................... 7- 27

7.10.13.2 Removing Hopper Stirring Motor ....................................................................................................................................... 7- 27

7.10.14 Developing Assembly ........................................................................................................................................ 7- 28

7.10.14.1 Removing Developing Assembly ....................................................................................................................................... 7- 28

7.10.14.2 Cleaning Developing Toner Blocking Sheet ...................................................................................................................... 7- 28

7.10.15 Developing Cylinder........................................................................................................................................... 7- 29

7.10.15.1 Before Removing Developing Cylinder ............................................................................................................................. 7- 29

7.10.15.2 Removing Developing Cylinder ......................................................................................................................................... 7- 29

Contents

Table of Contents