Table Of Contents - Canon DADF-M1 Service Manual

Contents
Chapter 1 Specifications
1.1 Product Specifications....................................................................................................................................... 1- 1
1.1.1Specifications .............................................................................................................................................. 1- 1
1.2 Names of Parts................................................................................................................................................... 1- 4
1.2.1External View.............................................................................................................................................. 1- 4
1.2.2Cross Section ............................................................................................................................................... 1- 4
1.3 Using the Machine............................................................................................................................................. 1- 6
1.3.1Original Placement Indicator....................................................................................................................... 1- 6
1.3.2Warning and Action to Take ....................................................................................................................... 1- 6
Chapter 2 Functions
2.1 Basic Construction ............................................................................................................................................ 2- 1
2.1.1Overview of the Electrical Circuitry ........................................................................................................... 2- 1
2.1.2Inputs to the ADF Controller PCB .............................................................................................................. 2- 1
2.1.3Outputs from the ADF Driver PCB............................................................................................................. 2- 2
2.2 Basic Operation ................................................................................................................................................. 2- 4
2.2.1Routes of Drive ........................................................................................................................................... 2- 4
2.2.2Overview of Operation Modes .................................................................................................................... 2- 5
2.2.3Normal Rotation Pickup/Reversal Operation (single-sided original -> signal-side print) .......................... 2- 7
2.2.4Normal Rotation Pickup/Delivery Operation (double-sided original -> double-sided print) ..................... 2- 7
2.2.5Normal Rotation Pickup/Reversal Delivery (double-died original -> double-sided print)....................... 2- 13
2.2.6Idle Feed/Reversal Pickup/Delivery (single-sided original of mixed configurations -> single-sided print) . 2-
15
2.3 Document Detection........................................................................................................................................ 2- 19
2.3.1Overview ................................................................................................................................................... 2- 19
2.3.2Checking the Presence/Absence of an Original ........................................................................................ 2- 20
2.3.3Identifying the Size of the Original ........................................................................................................... 2- 21
2.4 Document Pickup/Separation .......................................................................................................................... 2- 29
2.4.1Basic Sequence of Operation .................................................................................................................... 2- 29
2.4.2Pickup Unit and the Stopper...................................................................................................................... 2- 31
2.4.3Timing of Pickup....................................................................................................................................... 2- 31
2.4.4Controlling the Pickup Motor (M1) .......................................................................................................... 2- 32
2.4.5Controlling the Lock Motor (M4) ............................................................................................................. 2- 32
2.5 Document Reversing ....................................................................................................................................... 2- 34
2.5.1Basic Sequence of Operation .................................................................................................................... 2- 34
2.5.2Sequence of Operation .............................................................................................................................. 2- 35
2.5.3Controlling the Delivery Reversal Motor (M3) ........................................................................................ 2- 36
2.6 Document Feeding/Delivery ........................................................................................................................... 2- 37
2.6.1Basic Sequence of Operation .................................................................................................................... 2- 37
2.6.2Sequence of Operation .............................................................................................................................. 2- 38
2.6.3Controlling the Feed Motor ....................................................................................................................... 2- 38
2.7 Detecting Jams ................................................................................................................................................ 2- 39
Contents