Canon iR4570 Series Service Manual page 20

Contents
9.5.5 Internal Delivery Sensor............................................................................................................................ 9- 26
9.5.5.1 Removing the Inside Delivery Cover Unit ........................................................................................ 9- 26
9.5.5.2 Removing the Grounding Plate.......................................................................................................... 9- 26
9.5.5.3 Removing the Fixing Film Cover ...................................................................................................... 9- 27
9.5.5.4 Removing the Left Side Plate ............................................................................................................ 9- 27
9.5.5.5 Releasing the Locking Plate .............................................................................................................. 9- 28
9.5.5.6 Removing the Fixing Film Unit......................................................................................................... 9- 29
9.5.5.7 Removing the Inside Delivery Sensor ............................................................................................... 9- 30
9.5.6 Fixing Film Sensor .................................................................................................................................... 9- 31
9.5.6.1 Removing the Inside Delivery Cover Unit ........................................................................................ 9- 31
9.5.6.2 Removing the Grounding Plate.......................................................................................................... 9- 31
9.5.6.3 Removing the Fixing Film Sensor ..................................................................................................... 9- 31
Chapter 10 External and Controls
10.1 Control Panel ................................................................................................................................................. 10- 1
10.1.1Overview.................................................................................................................................................. 10- 1
10.1.2LCD Indication Processing...................................................................................................................... 10- 1
10.1.3Adjustment of the LCD Contact .............................................................................................................. 10- 2
10.1.4Functions of the Control Panel CPU ....................................................................................................... 10- 2
10.2 Counters......................................................................................................................................................... 10- 3
10.2.1Overview.................................................................................................................................................. 10- 3
10.2.2Timing of Increasing the Count ............................................................................................................... 10- 4
10.3 Fans................................................................................................................................................................ 10- 6
10.3.1Overview.................................................................................................................................................. 10- 6
10.3.22-Speed Control ....................................................................................................................................... 10- 6
10.3.3Sequence of Operation............................................................................................................................. 10- 7
10.4 Power Supply System .................................................................................................................................... 10- 8
10.4.1 Power Supply .......................................................................................................................................... 10- 8
10.4.1.1 Route of Power Inside the Printer Unit .......................................................................................... 10- 8
10.4.1.2 Power Supply Route in the Reader Unit.......................................................................................... 10- 9
10.4.1.3 Timing of Supply to the Reader Unit............................................................................................. 10- 10
10.4.1.4 Connections to Various Accessories.............................................................................................. 10- 10
10.4.2 Rated Output of the DC Power Supply PCB......................................................................................... 10- 11
10.4.2.1 Rated Output of the Printer Unit Power Supply PCB.................................................................... 10- 11
10.4.2.2 Rated Output of the Controller Power Supply PCB ...................................................................... 10- 12
10.4.2.3 Rated Output of the Accessories Power Supply PCB.................................................................... 10- 12
10.4.2.4 Rated Output of the All-Night Power Supply PCB ....................................................................... 10- 13
10.4.3 Protection Function ............................................................................................................................... 10- 13
10.4.3.1 Protective Mechanisms .................................................................................................................. 10- 13
10.4.4 Backup Battery ...................................................................................................................................... 10- 13
10.4.4.1 Backup Battery .............................................................................................................................. 10- 13
10.4.5 Energy-Saving Function........................................................................................................................ 10- 14
10.4.5.1 Overview........................................................................................................................................ 10- 14
10.4.5.2 Machine as Supplied with Power................................................................................................... 10- 15
10.5 Parts Replacement Procedure ...................................................................................................................... 10- 17
10.5.1 Main Drive Assembly ........................................................................................................................... 10- 17
10.5.1.1 Removing the Rear Cover.............................................................................................................. 10- 17
10.5.1.2 Removing the Main Drive Assembly ............................................................................................ 10- 17
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