Delivery Sensor)............................................................................................................................................................................. 7- 7

7.2.3 Other Jams ..............................................................................................................................................................7- 7

7.2.3.1 Door Open Jam........................................................................................................................................................................ 7- 7

7.3 Cassette Pick-Up Unit ................................................................................................................................ 7- 7

7.3.1 Overview ..................................................................................................................................................................7- 7

7.3.2 Cassette Pickup Operation ......................................................................................................................................7- 8

7.3.3 Cassette Paper Size Detection ................................................................................................................................7- 9

7.4 Manual Feed Pickup Unit ......................................................................................................................... 7- 10

7.4.1 Overview ................................................................................................................................................................7- 10

7.4.2 Post-pickup Control after Multi Manual Feed Pickup .............................................................................................7- 10

7.5 Parts Replacement Procedure ................................................................................................................. 7- 11

7.5.1 Pickup Roller..........................................................................................................................................................7- 11

7.5.1.1 Removing the Cassette Paper Pickup Roller......................................................................................................................... 7- 11

7.5.2 Cassette.................................................................................................................................................................7- 11

7.5.2.1 Removing the Cassette Unit .................................................................................................................................................. 7- 11

7.5.3 Cassette Pickup Assembly ....................................................................................................................................7- 12

7.5.3.1 Removing the Cassette Pickup Assembly ............................................................................................................................. 7- 12

7.5.4 Cassette Size Sensor ............................................................................................................................................7- 12

7.5.4.1 Removing the Paper Size Detection Switches....................................................................................................................... 7- 12

7.5.5 Cassette Retry Paper Sensor ................................................................................................................................7- 12

7.5.5.1 Removing the Retry Sensor................................................................................................................................................... 7- 12

7.5.6 Cassette Paper Sensor..........................................................................................................................................7- 12

7.5.6.1 Removing the Cassette Paper Presence/Absence Sensor ................................................................................................... 7- 12

7.5.7 Cassette Pickup Solenoid ......................................................................................................................................7- 13

7.5.7.1 Removing the Cassette Pickup Solenoid............................................................................................................................... 7- 13

7.5.8 Manual Pickup Roller .............................................................................................................................................7- 13

7.5.8.1 Removing the Multifeeder Pickup Roller................................................................................................................................ 7- 13

7.5.9 Manual Feed Tray paper sensor............................................................................................................................7- 13

7.5.9.1 Removing the Multifeeder Paper Presence/Absence Sensor................................................................................................ 7- 13

7.5.10 Manual Feed Pickup Solenoid .............................................................................................................................7- 14

7.5.10.1 Removing the Multifeeder Pickup Solenoid ......................................................................................................................... 7- 14

7.5.11 Registration Roller................................................................................................................................................7- 15

7.5.11.1 Removing the Registration Roller ........................................................................................................................................ 7- 15

7.5.12 Registration Clutch...............................................................................................................................................7- 15

7.5.12.1 Removing the Registration Clutch........................................................................................................................................ 7- 15

7.5.13 Separation Roller .................................................................................................................................................7- 15

7.5.13.1 Removing the Feed and Separation Rollers ........................................................................................................................ 7- 15

7.5.14 Separation Pad ....................................................................................................................................................7- 16

7.5.14.1 Removing the Separation Pad ............................................................................................................................................. 7- 16

Chapter 8 Fixing System

8.1 Construction ............................................................................................................................................... 8- 1

8.1.1 Specifications, Control Mechanisms and Functions ................................................................................................8- 1

8.1.2 Major Components...................................................................................................................................................8- 1

8.2 Various Control Mechanisms ..................................................................................................................... 8- 2

8.2.1 Controlling the Speed of the Fixing Film ..................................................................................................................8- 2

8.2.1.1 Controlling the Fixing Film Speed ............................................................................................................................................ 8- 2

8.2.2 Controlling the Fixing Film Temperature..................................................................................................................8- 2

8.2.2.1 Outline...................................................................................................................................................................................... 8- 2

8.2.2.2 Controlling the Fixing Film Temperature.................................................................................................................................. 8- 3

8.2.2.3 Target Temperatures by Mode (iR2030/iR2030i) .................................................................................................................... 8- 3

8.2.2.4 Target Temperatures by Mode (iR2025/iR2025i) .................................................................................................................... 8- 3

8.2.2.5 Target Temperatures by Mode (iR2022/iR2022i/iR2022K/iR2022N)....................................................................................... 8- 4

8.2.2.6 Target Temperatures by Mode (iR2018/iR2018i/iR2018N) ..................................................................................................... 8- 5

8.2.3 Detecting the Passage of Paper ..............................................................................................................................8- 5

8.2.3.1 Detecting the Passage of Paper .............................................................................................................................................. 8- 5

8.3 Protective Functions ................................................................................................................................... 8- 5

Table of Contents