Canon imageRUNNER iR2270 Service Manual page 164

Contents
3.1 External Covers..........................................................................................3-1
3.1.1 Front Cover .........................................................................................3-1
3.1.1.1 Removing the Front Cover...........................................................3-1
3.1.2 Upper Cover ........................................................................................3-3
3.1.2.1 Removing the Upper Cover .........................................................3-3
3.2 Drive System..............................................................................................3-6
3.2.1 Punch Motor........................................................................................3-6
3.2.1.1 Removing the Upper Cover .........................................................3-6
3.2.1.2 Removing the Punch Motor .........................................................3-7
3.3 Electrical System......................................................................................3-10
3.3.1 Photosensor PCB...............................................................................3-10
3.3.1.1 Removing the Upper Cover .......................................................3-10
3.3.1.2 Removing the Photosensor PCB ................................................3-11
3.3.2 Punch Controller PCB.......................................................................3-13
3.3.2.1 Removing the Upper Cover .......................................................3-13
3.3.2.2 Removing the Punch Controller PCB ........................................3-15
Contents