ContentsChapter9 Fixing System9.1 Construction ...................................................................................................................................................................9-19.1.1 Specifications/Control/Function .................................................................................................................................................. 9-19.1.2 Major Components (Section) ....................................................................................................................................................... 9-29.1.3 Major Components (Thermistor / Thermal switch) ..................................................................................................................... 9-39.1.4 Major Components (Sensor/Solenoid)......................................................................................................................................... 9-49.1.5 Control System Configuration ..................................................................................................................................................... 9-59.1.6 Fixing Roller/Belt Drive Control ................................................................................................................................................. 9-89.2 Basic Sequence ............................................................................................................................................................9-109.2.1 At Power-On .............................................................................................................................................................................. 9-109.2.2 Print (Constant Speed) ............................................................................................................................................................... 9-119.2.3 Print (1/3-Speed) ........................................................................................................................................................................ 9-129.3 Various Control Mechanisms.......................................................................................................................................9-139.3.1 Controlling the Fixing Roller Temperature ............................................................................................................................... 9-139.3.1.1 Down Sequence.............................................................................................................................................................................................9-139.3.1.2 Power Save Mode .........................................................................................................................................................................................9-149.3.2 Detecting the Passage of Paper .................................................................................................................................................. 9-149.3.2.1 Detection for Paper Wrapping ......................................................................................................................................................................9-149.3.3 External Heat Roller Drive Control ........................................................................................................................................... 9-179.3.3.1 Detached/Attached Mechanism of the External Heat Roller ........................................................................................................................9-179.3.4 Belting inclined Control............................................................................................................................................................. 9-199.3.4.1 Control for adjusting Fixing Belt Displacement ...........................................................................................................................................9-199.4 Belt Pressurizing Mechanism......................................................................................................................................9-229.4.1 Locking Mechanism of the Fixing Belt ..................................................................................................................................... 9-229.5 Fixing Cleaning Web Mechanisms ..............................................................................................................................9-249.5.1 Controll of the Fixing Cleaning Web Drive .............................................................................................................................. 9-249.5.2 Control of the Fixing Cleaning Web Length Detection............................................................................................................. 9-259.5.3 Detached/Attached Mechanism of the Cleaning Web (Web Roller)......................................................................................... 9-269.5.4 Refresh Roller Attach/Detach Mechanism ................................................................................................................................ 9-289.6 Protective Functions.....................................................................................................................................................9-299.6.1 Protective Circuit ....................................................................................................................................................................... 9-299.6.2 Related Error Code ................................................................................................................................................................... 9-319.7 Parts Replacement Procedure.......................................................................................................................................9-349.7.1 Fixing Drive Unit ....................................................................................................................................................................... 9-349.7.1.1 Preparation for Removing the Fixing Drive Second Gear ............................................................................................................................9-349.7.1.2 Removing the Fixing Drive Second Gear .....................................................................................................................................................9-349.7.2 Fixing Unit ................................................................................................................................................................................. 9-359.7.2.1 Preparation for Removing the Fixing Assembly Unit...................................................................................................................................9-359.7.2.2 Removing the Fixing Assembly Unit............................................................................................................................................................9-359.7.2.3 Removing the Fixing Assembly Unit............................................................................................................................................................9-369.7.3 Fixing Belt Unit ......................................................................................................................................................................... 9-389.7.3.1 Preparation for Removing the Fixing Belt Unit ............................................................................................................................................9-389.7.3.2 Removing the Fixing Belt Unit .....................................................................................................................................................................9-389.7.3.3 Preparation for Removing the Fixing Separation Roller Ball Bearing .........................................................................................................9-409.7.3.4 Removing the Fixing Separation Roller Ball Bearing ..................................................................................................................................9-409.7.4 Fixing Roller .............................................................................................................................................................................. 9-409.7.4.1 Preparation for Removing the Fixing Roller.................................................................................................................................................9-409.7.4.2 Removing the Fixing Roller..........................................................................................................................................................................9-409.7.4.3 After Replacing the Fixing Roller.................................................................................................................................................................9-409.7.5 Fixing Belt ................................................................................................................................................................................. 9-429.7.5.1 Preparation for Removing the Fixing Belt ....................................................................................................................................................9-429.7.5.2 Removing the Fixing Belt .............................................................................................................................................................................9-429.7.5.3 After Replacing the Fixing Belt ....................................................................................................................................................................9-43
