Canon Color imageCLASS MF9170c Service Manual page 185

Contents
9.1 Overview/Configuration ................................................................................................................................................ 9-1
9.1.1 Overview ...................................................................................................................................................................................... 9-1
9.2 Various Control Mechanisms ........................................................................................................................................ 9-2
9.2.1 Controlling the Temperature of the Fixing Unit .......................................................................................................................... 9-2
9.2.1.1 Fixing Temperature Control............................................................................................................................................................................9-2
9.2.1.2 Throughput Down Control..............................................................................................................................................................................9-3
9.2.2 Fixing Pressurizing/Release Control............................................................................................................................................ 9-4
9.2.2.1 Fixing Sleeve Pressuring/releasing Control....................................................................................................................................................9-4
9.3 Protection Function........................................................................................................................................................ 9-5
9.3.1 Overview ...................................................................................................................................................................................... 9-5
9.3.2 Failure Detection .......................................................................................................................................................................... 9-5
9.4 Parts Replacement Procedure ........................................................................................................................................ 9-6
9.4.1 Fixing Unit ................................................................................................................................................................................... 9-6
9.4.1.1 Removing the Fixing Assembly......................................................................................................................................................................9-6
9.4.2 Fixing Sleeve Unit........................................................................................................................................................................ 9-6
9.4.2.1 Before Removing the Fixing Sleeve Unit .......................................................................................................................................................9-6
9.4.2.2 Removing the Fixing Sleeve Unit...................................................................................................................................................................9-6
9.4.3 Fixing Drive Unit ......................................................................................................................................................................... 9-9
9.4.3.1 Before Removing the Fixing Drive Unit.........................................................................................................................................................9-9
9.4.3.2 Removing the Fixing Drive Unit ....................................................................................................................................................................9-9
9.4.4 Fixing Motor .............................................................................................................................................................................. 9-12
9.4.4.1 Before Removing the Fixing Motor.............................................................................................................................................................. 9-12
9.4.4.2 Removing the Fixing Motor.......................................................................................................................................................................... 9-12
Contents