Kyocera RA-1 Service Manual

RA-1

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

3CP

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

1-1-1 Part names

3CP

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

1-1-3 Drive system

3CP

Figure 1-1-3

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

1-1-3

1-2-1 Unpacking

3CP

Figure 1-2-1 Unpacking

1 Switchback unit
2 Front cover
3 Spacer
4 Binding screws M3 × 08
5 Binding screws M4 × 06
6 TP screws M4 × 12
7 TP screws M4 × 16

8 Front bottom pad
9 Rear bottom pad
0 Upper pad
! Outer case
@ Plastic bag
# Plastic bag
$ Bar-code labels

1-2-1