Canon iR3570 Service Manual page 18

Contents
8.8.25 Delivery Assembly 1.............................................................................................................................................8- 94
8.8.25.1 Removing the Right Cover (rear) ......................................................................................................................................... 8- 94
8.8.25.2 Removing the Front Cover Unit............................................................................................................................................ 8- 95
8.8.25.3 Removing the Delivery Tray................................................................................................................................................. 8- 95
8.8.25.4 Removing the Right Door..................................................................................................................................................... 8- 95
8.8.25.5 Removing the Right Door..................................................................................................................................................... 8- 96
8.8.25.6 Removing the Extension Delivery Kit ................................................................................................................................... 8- 96
8.8.25.7 Removing the Delivery Assembly 1 ..................................................................................................................................... 8- 97
8.8.26 Fixing/ Delivery Drive Assembly...........................................................................................................................8- 97
8.8.26.1 Removing the Right Cover (rear) ......................................................................................................................................... 8- 97
8.8.26.2 Removing the Front Cover Unit............................................................................................................................................ 8- 97
8.8.26.3 Removing the Delivery Tray................................................................................................................................................. 8- 98
8.8.26.4 Removing the Right Door..................................................................................................................................................... 8- 98
8.8.26.5 Removing the Right Door..................................................................................................................................................... 8- 99
8.8.26.6 Removing the Delivery Assembly 1 ..................................................................................................................................... 8- 99
8.8.26.7 Removing the Fixing Unit ..................................................................................................................................................... 8- 99
8.8.26.8 Removing the Fixing/Delivery Drive Assembly .................................................................................................................. 8- 100
8.8.27 Separation Roller ...............................................................................................................................................8- 100
8.8.27.1 Removing the Pickup Roller/Feed Roller/Separation Roller .............................................................................................. 8- 100
Chapter 9 Fixing System
9.1 Construction ............................................................................................................................................... 9- 1
9.1.1 Specifications, Control Mechanisms, and Functions ...............................................................................................9- 1
9.1.2 Major Components...................................................................................................................................................9- 1
9.2 Basic Sequence ......................................................................................................................................... 9- 1
9.2.1 Power-On Sequence................................................................................................................................................9- 1
9.2.2 Down Sequence.......................................................................................................................................................9- 2
9.3 Various Control Mechanisms ..................................................................................................................... 9- 2
9.3.1 Controlling the Speed of the Fixing Film ..................................................................................................................9- 2
9.3.1.1 Controlling the Fixing Film Speed in Response to Low Temperature...................................................................................... 9- 2
9.3.1.2 Controlling the Fixing Film Speed ............................................................................................................................................ 9- 2
9.3.2 Controlling the Fixing Film Temperature..................................................................................................................9- 2
9.3.2.1 Controlling the Power Supply in Response to Low Temperature ............................................................................................ 9- 2
9.3.2.2 Controlling the Feeding in Response to Low Temperature...................................................................................................... 9- 2
9.3.2.3 Controlling the Power Supply at Start-Up ................................................................................................................................ 9- 2
9.3.2.4 Copying Temperature Control.................................................................................................................................................. 9- 3
9.3.2.5 Changing the Fixing Film Control Temperature ....................................................................................................................... 9- 3
9.3.2.6 Temperature Control in Response to Automatic Double-Sided Copy...................................................................................... 9- 3
9.3.2.7 Temperature Control in Response to Change of Paper Size................................................................................................... 9- 3
9.3.3 Cleaning...................................................................................................................................................................9- 3
9.3.3.1 Fixing Film Cleaning ................................................................................................................................................................ 9- 3
9.3.4 Detecting the Passage of Paper ..............................................................................................................................9- 4
9.3.4.1 Detecting the Passage of Paper .............................................................................................................................................. 9- 4
9.4 Protective Functions ................................................................................................................................... 9- 4
9.4.1 Protective Functions ................................................................................................................................................9- 4
9.4.2 Detecting an Error....................................................................................................................................................9- 5
9.5 Parts Replacement Procedure ................................................................................................................... 9- 5
9.5.1 Fixing Unit ................................................................................................................................................................9- 5
9.5.1.1 Removing the Right Cover (rear) ............................................................................................................................................. 9- 5
9.5.1.2 Removing the Right Door......................................................................................................................................................... 9- 5
9.5.1.3 Removing the Right Door......................................................................................................................................................... 9- 6
9.5.1.4 Removing the Fixing Unit......................................................................................................................................................... 9- 6
9.5.2 Pressure Roller ........................................................................................................................................................9- 7
9.5.2.1 Removing the inside delivery cover unit (old) .......................................................................................................................... 9- 7
9.5.2.2 Removing the inside delivery cover unit (new) ........................................................................................................................ 9- 9
9.5.2.3 Removing the Grounding Plate................................................................................................................................................ 9- 9
9.5.2.4 Removing the Fixing Film Cover.............................................................................................................................................. 9- 9
9.5.2.5 Removing the Left Side Plate ................................................................................................................................................ 9- 10