Contents8.11.15.1 Before Removing Cassette Size Sensor PCB........................................................................8- 498.11.15.2 Removing Cassette Size Sensor PCB.....................................................................................8- 498.11.16 Manual Feed Pickup Clutch ..............................................................................................................8- 498.11.16.1 Before Removing Manual Feed Pickup Clutch.......................................................................8- 498.11.16.2 Removing Manual Feed Pickup Clutch ...................................................................................8- 498.11.17 Manual Feed Tray Unit.......................................................................................................................8- 508.11.17.1 Before Removing Manual Feed Tray Unit ..............................................................................8- 508.11.17.2 Removing Manual Feed Tray Unit ............................................................................................8- 508.11.18 Manual Feed Unit................................................................................................................................8- 508.11.18.1 Before Removing Manual Feed Unit .......................................................................................8- 508.11.18.2 Removing Manual Feed Unit .....................................................................................................8- 508.11.19 Manual Pickup Roller .........................................................................................................................8- 518.11.19.1 Before Removing Manual Feed Pickup Roller........................................................................8- 518.11.19.2 Removing Manual Feed Pickup Roller.....................................................................................8- 518.11.20 Manual Feed Separation Pad ...........................................................................................................8- 528.11.20.1 Before Removing Manual Feed Separation Pad ...................................................................8- 528.11.20.2 Removing Manual Feed Pickup Separation Pad ...................................................................8- 528.11.21 Registration Motor...............................................................................................................................8- 528.11.21.1 Before Removing Registration Motor ......................................................................................8- 528.11.21.2 Removing Registration Motor ....................................................................................................8- 528.11.22 Duplex Unit...........................................................................................................................................8- 528.11.22.1 Before Removing Duplexing Feed frame ...............................................................................8- 528.11.22.2 Removing Duplexing Feed frame ............................................................................................8- 528.11.23 Duplex Feed Sensor...........................................................................................................................8- 538.11.23.1 Before Removing Duplexing Feed Sensor .............................................................................8- 538.11.23.2 Removing Duplexing Feed Sensor...........................................................................................8- 53Chapter 9 Fixing System9.1 Construction .....................................................................................................................................................9- 19.1.1 Specifications, Controls, and Functions................................................................................................9- 19.1.2 Major Components...................................................................................................................................9- 19.1.3 Construction of the Control System.......................................................................................................9- 29.2 Various Control Mechanisms.........................................................................................................................9- 39.2.1 Controlling the Fixing Temperature........................................................................................................9- 39.2.1.1 Overview .............................................................................................................................................9- 39.2.1.2 Temperature control in standby ......................................................................................................9- 39.2.1.3 Temperature Control during Printing ..............................................................................................9- 49.2.1.4 Fixing film edge cooling control.......................................................................................................9- 69.2.1.5 Detection of the Fixing Assembly Absence/Presence.................................................................9- 99.2.2 Down Sequence Control........................................................................................................................9- 109.2.2.1 Down Sequence Control ................................................................................................................9- 109.3 Film Unit Pressurizing Mechanism ............................................................................................................9- 119.3.1 Pressure/release control .......................................................................................................................9- 119.4 Protective Functions .....................................................................................................................................9- 119.4.1 Overview ..................................................................................................................................................9- 119.4.2 Fixing System Error Code .....................................................................................................................9- 139.5 Parts Replacement Procedure ....................................................................................................................9- 149.5.1 Fixing Unit ................................................................................................................................................9- 14