Canon iR C6800 Series Service Manual page 13

8.10 Delivery .......................................................................................................................................................... 8 49
8.10.1 Overview ................................................................................................................................................. 8 49
8.10.2 Face Up Delivery .................................................................................................................................... 8 49
8.10.3 Face Down Delivery ............................................................................................................................... 8 50
8.11 Parts Replacement Procedure ......................................................................................................................... 8 53
8.11.1 Cassette Pickup Unit ................................................................................................................................ 8 53
8.11.2 Cassette Pickup Motor ............................................................................................................................. 8 53
8.11.3 Cassette Lifter Motor ............................................................................................................................... 8 54
8.11.4 Left Deck Lifter Motor ............................................................................................................................ 8 55
8.11.5 Right Deck Lifter Motor .......................................................................................................................... 8 56
8.11.6 Left Deck Pickup Motor .......................................................................................................................... 8 58
8.11.7 Right Deck Pickup Motor ........................................................................................................................ 8 59
8.11.8 Vertical Path Motor.................................................................................................................................. 8 60
8.11.9 Right Deck Pull Off Motor ...................................................................................................................... 8 61
8.11.10 Cassette Paper Level Sensor (A/B)........................................................................................................ 8 62
8.11.11 Left Deck Paper Level Sensor ............................................................................................................... 8 64
8.11.12 Right Deck Pickup Assembly ................................................................................................................ 8 66
8.11.13 Left Deck Pickup Assembly .................................................................................................................. 8 67
8.11.14 Right Deck Pickup/Feed/Separation Roller ........................................................................................... 8 68
8.11.15 Left Deck Pickup/Feed/Separation Roller ............................................................................................. 8 69
8.11.16 Cassette Pickup/Feed/Separation Roller ................................................................................................ 8 70
8.11.17 Manual Feed Unit .................................................................................................................................. 8 71
8.11.18 Manual Feed Roller................................................................................................................................ 8 71
8.11.19 Manual Feed Separation Roller ............................................................................................................. 8 72
8.11.20 Manual Feed Pre Regustration Motor ................................................................................................... 8 73
8.11.21 Horizontal Registration Assembly ......................................................................................................... 8 77
8.11.22 Registration Motor ................................................................................................................................. 8 79
8.11.23 Horizontal Registration Motor ............................................................................................................... 8 81
8.11.24 Duplex Reversal Motor.......................................................................................................................... 8 84
8.11.25 Duplex Left Motor ................................................................................................................................. 8 84
8.11.26 Duplex Middle Motor ............................................................................................................................ 8 86
8.11.27 Duplex Right Motor ............................................................................................................................... 8 87
8.11.28 Outside Delivery Motor ......................................................................................................................... 8 88
Chapter 9 Fixing System
9.1 Construction ....................................................................................................................................................... 9 1
9.1.1 Specifications, Control Mechanisms, and Functions .................................................................................. 9 1
9.1.2 Major Components ...................................................................................................................................... 9 2
9.1.3 Construction of the Control System ............................................................................................................ 9 5
9.2 Basic Sequence................................................................................................................................................... 9 6
9.2.1 Sequence of Operation at Power On ........................................................................................................... 9 6
9.2.2 Basic Sequence of Operation (printing) ...................................................................................................... 9 7
9.3 Various Control Mechanisms............................................................................................................................. 9 9
9.3.1 Controlling the Speed of the Fixing Roller.................................................................................................. 9 9
9.3.2 Controlling the Fixing Roller Temperature ............................................................................................... 9 12
9.3.3 External Heat Roller Drive Control ........................................................................................................... 9 17
9.4 Fixing Cleaning Web Mechanisms .................................................................................................................. 9 19
9.4.1 Overview ................................................................................................................................................... 9 19
9.4.2 Web Retaining Mechanism ....................................................................................................................... 9 20
9.5 Protective Functions ......................................................................................................................................... 9 22
9.5.1 Detecting Overheating Using Thermistors................................................................................................ 9 22
9.5.2 Cutting Off the Power Using Thermal Switches....................................................................................... 9 22
9.5.3 Errors ......................................................................................................................................................... 9 22
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