7.2.1 Jam Detection Outline................................................................................................................................. 7- 3

7.2.2 Delivery Jams.............................................................................................................................................. 7- 3

7.2.3 Stationary Jams ........................................................................................................................................... 7- 3

7.2.4 Other Jams .................................................................................................................................................. 7- 4

7.3 Cassette Pick-Up Unit ....................................................................................................................................... 7- 5

7.3.1Outline ......................................................................................................................................................... 7- 5

7.3.2Retry Pickup ................................................................................................................................................ 7- 5

7.3.3Detecting the Size of Paper ......................................................................................................................... 7- 6

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

7.4.1Outline ......................................................................................................................................................... 7- 7

7.4.2Retry Pickup ................................................................................................................................................ 7- 7

7.4.3Detecting the Size of Paper ......................................................................................................................... 7- 8

7.5 Delivery ............................................................................................................................................................. 7- 9

7.5.1Outline ......................................................................................................................................................... 7- 9

7.5.2Auto Delivery Control................................................................................................................................. 7- 9

7.5.3Reducing the Copying Speed .................................................................................................................... 7- 10

7.6 Parts Replacement Procedure.......................................................................................................................... 7- 11

7.6.1 Pickup Roller ............................................................................................................................................ 7- 11

7.6.2 Separation Pad .......................................................................................................................................... 7- 12

7.6.3 Cassette Pickup Solenoid .......................................................................................................................... 7- 12

7.6.4 Manual Feed (Upper) ................................................................................................................................ 7- 14

7.6.5 Manual Feed (Lower)................................................................................................................................ 7- 15

7.6.6 Manual Pickup Roller ............................................................................................................................... 7- 15

7.6.7 Manual Feed Tray sensor.......................................................................................................................... 7- 16

7.6.8 Manual Feed Pickup Solenoid .................................................................................................................. 7- 21

7.6.9 Registration Roller Unit ............................................................................................................................ 7- 27

7.6.10 Vertical Path Roller................................................................................................................................. 7- 28

Chapter 8　Fixing System

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

8.1.1Outline ......................................................................................................................................................... 8- 1

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

8.2.1 Controlling the Fixing Roller Temperature ................................................................................................ 8- 2

8.2.2 Controlling the Fixing File Bias Temperature ............................................................................................ 8- 3

8.3 Protective Functions .......................................................................................................................................... 8- 4

8.3.1Outline ......................................................................................................................................................... 8- 4

8.3.2Detecting a Fault in the Fixing Assembly ................................................................................................... 8- 4

8.4 Parts Replacement Procedure............................................................................................................................ 8- 6

8.4.1 Fixing Unit .................................................................................................................................................. 8- 6

8.4.2 Pressure Roller ............................................................................................................................................ 8- 8

8.4.3 Fixing Film................................................................................................................................................ 8- 12

8.4.4 Fixing Delivery Sensor ............................................................................................................................. 8- 15

Chapter 9　External and Controls

9.1 Fans ................................................................................................................................................................... 9- 1

9.1.1Outline ......................................................................................................................................................... 9- 1

9.2 Power Supply System........................................................................................................................................ 9- 2

Contents

Table of Contents