Canon iR C2880 Series Service Manual page 333

Contents
9.1 Construction ...................................................................................................................................................................9-1
9.1.1 Specifications, Controls, and Functions....................................................................................................................................... 9-1
9.1.2 Major Components....................................................................................................................................................................... 9-1
9.1.3 Construction of the Control System............................................................................................................................................. 9-2
9.2 Various Control Mechanisms.........................................................................................................................................9-3
9.2.1 Controlling the Fixing Temperature ............................................................................................................................................ 9-3
9.2.1.1 Overview .........................................................................................................................................................................................................9-3
9.2.1.2 Temperature control in standby ......................................................................................................................................................................9-3
9.2.1.3 Temperature Control during Printing..............................................................................................................................................................9-4
9.2.1.4 Fixing film edge cooling control.....................................................................................................................................................................9-6
9.2.1.5 Detection of the Fixing Assembly Absence/Presence ....................................................................................................................................9-9
9.2.2 Down Sequence Control .............................................................................................................................................................. 9-9
9.2.2.1 Down Sequence Control .................................................................................................................................................................................9-9
9.3 Film Unit Pressurizing Mechanism.............................................................................................................................9-10
9.3.1 Pressure/release control ............................................................................................................................................................. 9-10
9.4 Protective Functions.....................................................................................................................................................9-11
9.4.1 Overview.................................................................................................................................................................................... 9-11
9.4.2 Fixing System Error Code ......................................................................................................................................................... 9-13
9.5 Parts Replacement Procedure.......................................................................................................................................9-14
9.5.1 Fixing Unit ................................................................................................................................................................................. 9-14
9.5.1.1 Before Removing Fixing Unit ......................................................................................................................................................................9-14
9.5.1.2 Removing Fixing Unit...................................................................................................................................................................................9-14
9.5.2 Fixing Film Unit ........................................................................................................................................................................ 9-14
9.5.2.1 Before Removing Fixing Film Unit ..............................................................................................................................................................9-14
9.5.2.2 Removing Fixing Film Unit ..........................................................................................................................................................................9-14
9.5.3 Pressure Roller ........................................................................................................................................................................... 9-16
9.5.3.1 Before Removing Pressure Rolle ..................................................................................................................................................................9-16
9.5.3.2 Removing Pressure Roller.............................................................................................................................................................................9-16
Contents