Canon L90 Series Service Manual page 55

Contents
6.1 Overview/Configuration ................................................................................................................................................6-1
6.1.1 Overview...................................................................................................................................................................................... 6-1
6.2 Various Control Mechanisms.........................................................................................................................................6-1
6.2.1 Controlling the Temperature of the Fixing Unit .......................................................................................................................... 6-1
6.2.1.1 Heater Temperature Control ...........................................................................................................................................................................6-1
6.3 Protection Function ........................................................................................................................................................6-3
6.3.1 Protective Mechanisms ................................................................................................................................................................ 6-3
6.3.2 Detection of a Fault...................................................................................................................................................................... 6-3
6.4 Parts Replacement Procedure.........................................................................................................................................6-3
6.4.1 Fixing Unit ................................................................................................................................................................................... 6-3
6.4.1.1 Preparation for Removing the Fixing Unit......................................................................................................................................................6-3
6.4.1.2 Removing the Fixing Unit...............................................................................................................................................................................6-3
6.4.2 Fixing Film Unit .......................................................................................................................................................................... 6-3
6.4.2.1 Preparation for Removing the Fixing Film Unit .............................................................................................................................................6-3
6.4.2.2 Removing the Fixing Film Unit ......................................................................................................................................................................6-3
6.4.3 Fixing Pressure Roller.................................................................................................................................................................. 6-4
6.4.3.1 Preparation for Removing the Fixing Pressure Roller ....................................................................................................................................6-4
6.4.3.2 Removing the Fixing Pressure Roller .............................................................................................................................................................6-4
Contents