Canon ImageRUNNER 1022iF, Service Manual, Page: 77 / 270

Contents
Contents
4.1 Construction ...................................................................................................................................................................4-1
4.1.1 Specifications, Control Methods, and Functions ......................................................................................................................... 4-1
4.1.2 Major Components....................................................................................................................................................................... 4-1
4.2 Basic Sequence ..............................................................................................................................................................4-2
4.2.1 Basic Sequence at Power-on........................................................................................................................................................ 4-2
4.2.2 Basic Sequence after Depression of Start Key (Book mode, One Sheet of original) .................................................................. 4-2
4.2.3 Basic Sequence after Depression of Start Key (ADF Mode, One Sheet of Original) ................................................................. 4-3
4.3 Various Control..............................................................................................................................................................4-3
4.3.1 Enlargement/Reduction................................................................................................................................................................ 4-3
4.3.1.1 Magnification Change in Vertical Scan Direction ..........................................................................................................................................4-3
4.3.1.2 Magnification Change in Horizontal Scan Direction......................................................................................................................................4-3
4.3.2 Dirt Sensor Control ...................................................................................................................................................................... 4-4
4.3.2.1 Outline.............................................................................................................................................................................................................4-4
4.4 Parts Replacement Procedure.........................................................................................................................................4-6
4.4.1 Copyboard glass........................................................................................................................................................................... 4-6
4.4.1.1 Removing the Copyboard Glass......................................................................................................................................................................4-6
4.4.1.2 Procedure after Replacing the Copyboard Glass (equipped with SEND functions).......................................................................................4-6
4.4.2 Reader Controller PCB ................................................................................................................................................................ 4-6
4.4.2.1 Removing the Analog Processor PCB ............................................................................................................................................................4-6
4.4.3 Scanner Motor.............................................................................................................................................................................. 4-6
4.4.3.1 Removing the Reader Motor...........................................................................................................................................................................4-6
4.4.4 Contact sensor.............................................................................................................................................................................. 4-6
4.4.4.1 Removing the Contact Sensor.........................................................................................................................................................................4-6
4.4.4.2 Procedure after Replacing the CS ...................................................................................................................................................................4-7
4.4.5 Contact Sensor HP Sensor ........................................................................................................................................................... 4-7
4.4.5.1 Removing the Contact Sensor Home Position Sensor ....................................................................................................................................4-7