Canon iR3570 Service Manual page 283

Contents
8.1 Construction ...................................................................................................................................................................8-1
8.1.1 Specifications, Controls, and Functions....................................................................................................................................... 8-1
8.1.2 Specifications, Controls, and Functions....................................................................................................................................... 8-1
8.1.3 Division into Blocks .................................................................................................................................................................... 8-2
8.1.4 Division into Blocks .................................................................................................................................................................... 8-2
8.1.5 Arrangement of Rollers................................................................................................................................................................ 8-3
8.1.6 Arrangement of Rollers................................................................................................................................................................ 8-4
8.1.7 Diagram of Paper Paths (printer on its own) ............................................................................................................................... 8-5
8.1.8 Paper Path (printer unit on its own) ............................................................................................................................................. 8-6
8.1.9 Diagram of Paper Paths (w/ copy tray )....................................................................................................................................... 8-7
8.1.10 Diagram of Paper Paths (w/ 3 Way Unit-A1 /copy tray)........................................................................................................... 8-7
8.1.11 Paper path (w/ expansion output kit, output tray)...................................................................................................................... 8-8
8.1.12 Diagram of Paper Paths (w/ Finisher-S1/copy tray) .................................................................................................................. 8-9
8.1.13 Paper Path (w/ Finer-S1, output tray) ........................................................................................................................................ 8-9
8.1.14 Diagram of Paper Paths (w/ Finisher-Q3/Saddle Finisher-Q4) ............................................................................................... 8-10
8.1.15 Arrangement of Sensors........................................................................................................................................................... 8-11
8.1.16 Arrangement of Sensors........................................................................................................................................................... 8-11
8.1.17 Route of Drive.......................................................................................................................................................................... 8-12
8.1.18 Route of Drive.......................................................................................................................................................................... 8-13
8.2 Basic Sequence ............................................................................................................................................................8-14
8.2.1 Basic Sequence ......................................................................................................................................................................... 8-14
8.2.2 Increase in Speed ....................................................................................................................................................................... 8-14
8.2.3 Acceleration Intervals ................................................................................................................................................................ 8-16
8.2.4 Increase in Speed ....................................................................................................................................................................... 8-18
8.3 Detecting Jams .............................................................................................................................................................8-19
8.3.1 Delay Jams ................................................................................................................................................................................. 8-19
8.3.1.1 Delay Jam Outside the Cassette Pickup Assembly .......................................................................................................................................8-19
8.3.1.2 Delay Jam in the Cassette Pickup Assembly ................................................................................................................................................8-19
8.3.2 Stationary Jams .......................................................................................................................................................................... 8-19
8.3.2.1 Common Stationary Jam ...............................................................................................................................................................................8-19
8.3.2.2 Stationary Jam at Power-On..........................................................................................................................................................................8-20
8.3.3 Other Jams ................................................................................................................................................................................. 8-20
8.3.3.1 Door Open Jam .............................................................................................................................................................................................8-20
8.4 Cassette Pick-Up Unit ..................................................................................................................................................8-20
8.4.1 Overview.................................................................................................................................................................................... 8-20
8.4.2 Basic Sequence ......................................................................................................................................................................... 8-21
8.4.3 Identifying the Paper Size .......................................................................................................................................................... 8-21
8.4.4 Setting Up the Universal Cassette.............................................................................................................................................. 8-23
8.4.5 Paper Level Sensor .................................................................................................................................................................... 8-23
8.5 Manual Feed Pickup Unit ............................................................................................................................................8-25
8.5.1 Overview.................................................................................................................................................................................... 8-25
8.5.2 Basic Sequence of Operation ..................................................................................................................................................... 8-26
8.5.3 Identifying the Paper Size .......................................................................................................................................................... 8-26
8.5.4 Paper Retaining Mechanism ...................................................................................................................................................... 8-27
8.6 Registration Unit ..........................................................................................................................................................8-28
8.6.1 Overview.................................................................................................................................................................................... 8-28
8.6.2 Checking Horizontal Registration.............................................................................................................................................. 8-29
8.7 Duplex Feeding Unit ....................................................................................................................................................8-29
8.7.1 Overview.................................................................................................................................................................................... 8-29
8.7.2 Overview.................................................................................................................................................................................... 8-31
Contents