Canon DADF-Q1 Service Manual

Contents

Canon DADF-Q1 Service Manual Manual pdf 7 page image

ContentsContentsChapter 1 Specifications1.1 Product Specifications ................................................................................................................................1- 11.1.1 ADF Specifications .................................................................................................................................................. 1- 11.2 Names of Parts ...........................................................................................................................................1- 21.2.1 External View........................................................................................................................................................... 1- 21.2.2 Cross Section .......................................................................................................................................................... 1- 31.3 Using the Machine ......................................................................................................................................1- 31.3.1 Original Set Indicator ............................................................................................................................................... 1- 3Chapter 2 Functions2.1 Basic Construction......................................................................................................................................2- 12.1.1 Overview of Electrical Circuit................................................................................................................................... 2- 12.1.2 Inputs to ADF Controller PCB.................................................................................................................................. 2- 22.1.3 Outputs from ADF Controller PCB........................................................................................................................... 2- 42.2 Basic Operation ..........................................................................................................................................2- 42.2.1 Outline ..................................................................................................................................................................... 2- 42.2.2 Outline ..................................................................................................................................................................... 2- 62.2.3 CW Pickup/Delivery................................................................................................................................................. 2- 72.2.4 Pre-Reversal/Reversal/Delivery .............................................................................................................................. 2- 72.2.5 Manual Feeder Pickup/Delivery............................................................................................................................... 2- 82.3 Document Detection ...................................................................................................................................2- 92.3.1 Outline ..................................................................................................................................................................... 2- 92.3.2 Detecting the Presence/Absence of an Original...................................................................................................... 2- 92.3.3 Original Size Detection 1 ....................................................................................................................................... 2- 102.3.4 Original Size Detection 2 ....................................................................................................................................... 2- 112.3.5 Detecting the Presence/Absence of an Original in the Manual Feeder................................................................. 2- 142.4 Document Pickup/Separation ...................................................................................................................2- 152.4.1 Outline ................................................................................................................................................................... 2- 152.4.2 Moving Up/Down the Pickup Roller Unit................................................................................................................ 2- 152.4.3 Switching the Separation Pressure ....................................................................................................................... 2- 172.4.4 Separation Sensor (S4) and Skew Sensor (S5) .................................................................................................... 2- 182.4.5 Controlling the Pickup Motor (M3) ......................................................................................................................... 2- 192.4.6 Controlling the Separation Motor (M4) .................................................................................................................. 2- 192.4.7 Sequence of Operations........................................................................................................................................ 2- 202.5 Document Feeding/Delivery .....................................................................................................................2- 202.5.1 Outline ................................................................................................................................................................... 2- 202.5.2 Controlling the Belt Motor (M2).............................................................................................................................. 2- 212.5.3 Controlling the Delivery Motor (M5)....................................................................................................................... 2- 222.6 Feeding Unit .............................................................................................................................................2- 222.6.1 Outline of CW Pickup/Delivery .............................................................................................................................. 2- 222.6.2 CW Pickup/Delivery Fixed Reading....................................................................................................................... 2- 232.6.3 CW Pickup/Delivery (stream reading) .................................................................................................................. 2- 272.6.4 Double-Sided Originals (fixed reading) ................................................................................................................. 2- 332.6.5 Fixed Reading (continuous; double-sided original) ............................................................................................... 2- 392.6.6 Controlling the Reversal Motor (M1)...................................................................................................................... 2- 462.6.7 Manual Feeder Pickup/Delivery Operation............................................................................................................ 2- 462.7 Detecting Jams .........................................................................................................................................2- 472.7.1 Overview ............................................................................................................................................................... 2- 472.7.2 List of Jam Code.................................................................................................................................................... 2- 48