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RA-1
3CP

CONTENTS

1-1 Specifications
1-1-1 Part names ........................................................................................................................................... 1-1-1
1-1-2 Machine cross section .......................................................................................................................... 1-1-2
1-1-3 Drive system ........................................................................................................................................ 1-1-3

1-2 Installation
1-2-1 Unpacking ............................................................................................................................................ 1-2-1

1-3 Troubleshooting
1-3-1 Paper misfeed detection ...................................................................................................................... 1-3-1
(1) Paper misfeed indication ............................................................................................................... 1-3-1
(2) Paper misfeed detection conditions .............................................................................................. 1-3-2
(3) Paper misfeeds ............................................................................................................................. 1-3-3
1-3-2 Electrical problems ............................................................................................................................... 1-3-4
(1) The switchback conveying motor does not operate. ..................................................................... 1-3-4
(2) The switchback eject motor does not operate. ............................................................................. 1-3-4
(3) The feedshift solenoid does not operate. ...................................................................................... 1-3-4
(4) The press solenoide does not operate. ........................................................................................ 1-3-4
1-3-3 Mechanical problems ........................................................................................................................... 1-3-5
(1) Paper jams. ................................................................................................................................... 1-3-5
(2) Abnormal noise is heard. .............................................................................................................. 1-3-5

2-1 Mechanical construction
2-1-1 Construction of each section ................................................................................................................ 2-1-1
(1) Paper switchback operation .......................................................................................................... 2-1-2

2-2 Electrical Parts Layout
2-2-1 Electrical parts layout ........................................................................................................................... 2-2-1
(1) PCBs ............................................................................................................................................. 2-2-1
(2) Switches and solenoids ................................................................................................................ 2-2-2
(3) Motors ........................................................................................................................................... 2-2-3

2-3 Operation of the PCBs
2-3-1 Main PCB ............................................................................................................................................. 2-3-1

2-4 Appendixes
Timing chart No. 1 .......................................................................................................................................... 2-4-1
Wiring diagram ............................................................................................................................................... 2-4-2




1-1-1
3CP

1-1-1 Part names




Switchback unit




Switchback unit open/close lever


Figure 1-1-1




1-1-1
3CP

1-1-2 Machine cross section




Switchback
unit




Paper path




Figure 1-1-2




1-1-2
3CP

1-1-3 Drive system




Figure 1-1-3
1 Switchback motor gear
2 Eject motor gear
3 Gear 23/31
4 Gear 21




1-1-3
3CP

1-2-1 Unpacking




Figure 1-2-1 Unpacking


1 Switchback unit 8 Front bottom pad
2 Front cover 9 Rear bottom pad
3 Spacer 0 Upper pad
4 Binding screws M3