Canon iR3245, Service Manual

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Contents
9.3
Various Control Mechanisms ..................................................................................................................... 9- 3
9.3.1 Controlling the Speed of the Fixing Film ..................................................................................................................9- 3
9.3.1.1
Controlling the Fixing Film Speed in Response to Low Temperature ...................................................................................... 9- 3
9.3.1.2 Controlling the Fixing Film Speed ............................................................................................................................................ 9- 3
9.3.2
Controlling the Fixing Film Temperature..................................................................................................................9- 3
9.3.2.1 Controlling the Power Supply in Response to Low Temperature ............................................................................................ 9- 3
9.3.2.2
Controlling the Feeding in Response to Low Temperature...................................................................................................... 9- 3
9.3.2.3 Controlling the Power Supply at Start-Up ................................................................................................................................ 9- 4
9.3.2.4
Copying Temperature Control.................................................................................................................................................. 9- 4
9.3.2.5 Changing the Fixing Film Control Temperature ....................................................................................................................... 9- 4
9.3.2.6 Temperature Control in Response to Automatic Double-Sided Copy...................................................................................... 9- 4
9.3.2.7
Temperature Control in Response to Change of Paper Size................................................................................................... 9- 4
9.3.3 Cleaning...................................................................................................................................................................9- 5
9.3.3.1 Fixing Film Cleaning ................................................................................................................................................................ 9- 5
9.3.4 Detecting the Passage of Paper ..............................................................................................................................9- 5
9.3.4.1 Detecting the Passage of Paper .............................................................................................................................................. 9- 5
9.4 Protective Functions ................................................................................................................................... 9- 6
9.4.1
Protective Functions ................................................................................................................................................9- 6
9.4.2 Detecting an Error....................................................................................................................................................9- 7
9.5
Parts Replacement Procedure ................................................................................................................... 9- 8
9.5.1 Fixing Unit ................................................................................................................................................................9- 8
9.5.1.1 Before Removing the Fixing Unit ............................................................................................................................................. 9- 8
9.5.1.2
Removing the Fixing Unit......................................................................................................................................................... 9- 8
9.5.2
Pressure Roller ........................................................................................................................................................9- 8
9.5.2.1
Before Removing the Pressure Roller ..................................................................................................................................... 9- 8
9.5.2.2 Removing the Pressure Roller ................................................................................................................................................. 9- 8
9.5.3 Cleaning Roller ........................................................................................................................................................9- 9
9.5.3.1 Before Removing the Cleaning Roller...................................................................................................................................... 9- 9
9.5.3.2
Removing the Cleaning Roller ................................................................................................................................................. 9- 9
9.5.4 Fixing Film..............................................................................................................................................................9- 10
9.5.4.1 Before Removing the Fixing Film Unit ................................................................................................................................... 9- 10
9.5.4.2 Removing the Fixing Film Unit ............................................................................................................................................... 9- 10
9.5.5
Internal Delivery Sensor.........................................................................................................................................9- 12
9.5.5.1
Before Removing the Internal Delivery Sensor...................................................................................................................... 9- 12
9.5.5.2 Removing the Internal Delivery Sensor ................................................................................................................................. 9- 12
9.5.6 Fixing Film Sensor .................................................................................................................................................9- 13
9.5.6.1 Before Removing the Fixing Film Sensor .............................................................................................................................. 9- 13
9.5.6.2
Removing the Fixing Film Sensor .......................................................................................................................................... 9- 13
9.5.7
Fixing Inlet Guide ...................................................................................................................................................9- 14
9.5.7.1
Before Removing the Fixing Inlet Guide ................................................................................................................................ 9- 14
9.5.7.2 Removing the Fixing Inlet Guide............................................................................................................................................ 9- 14
Chapter 10
External and Controls
10.1 Control Panel .......................................................................................................................................... 10- 1
10.1.1 Overview ..............................................................................................................................................................10- 1
10.1.2 LCD Indication Processing...................................................................................................................................10- 1
10.1.3 Adjusting the LCD Contrast..................................................................................................................................10- 1
10.1.4
Adjusting Fax Sound Volume...............................................................................................................................10- 1
10.1.5
Functions of the Control Panel CPU ....................................................................................................................10- 2
10.2 Counters ................................................................................................................................................. 10- 3
10.2.1
Overview ..............................................................................................................................................................10- 3
10.2.2
Timing of Increasing the Count ............................................................................................................................10- 3
10.3 Fans........................................................................................................................................................ 10- 4
10.3.1 Overview ..............................................................................................................................................................10- 4
10.3.2 2-speed control ....................................................................................................................................................10- 5
10.3.3 Operation sequence.............................................................................................................................................10- 5
10.4
Power Supply System ............................................................................................................................ 10- 6