Cause
Interface cable (downstream device side) connector disconnected or broken, PCB of downstream device defective, Controller PCB defective, Connecter disconnected, Short-circuit, Overload, Motor defective, Solenoid defective, Home position sensor defective
Solution
Check Points
1. Check the connector
| SC No. | Check Points |
|---|
| SC720-01 | Connector which is connected to CN100 to CN101 of the main board |
| SC720-03 | No need to check the connector |
| SC720-04 | No need to check the connector |
| SC720-10 | Connector between CN133 of the main board and the entrance transport motor |
| SC720-11 | Connector between CN133 of the main board and the horizontal transport motor |
| SC720-13 | Connector between CN118 of the main board and the transport motor |
| SC720-15 | Connector between CN131 of the main board and the pre-stack transport motor |
| SC720-17 | Connector between CN118 of the main board and the exit motor |
| SC720-20 | Connector between CN128 of the main board and the lower junction gate motor |
| SC720-24 | - Connector between CN128 of the main board and the paper exit guide plate motor
- Connector between CN116 of the main board and the exit guide plate HP sensor
|
| SC720-25 | - Connector between CN130/CN132 of the main board and the punch unit control board
- Connector between CN605 of the punch unit control board and the punch movement motor
- Connector between CN604 of the punch unit control board and the punch motor rotation sensor
- Connector between CN604 of the punch unit control board and the punch HP sensor
|
| SC720-27 | - Connector between CN130/CN132 of the punch unit control board and the punch unit control board
- Connector between CN606 of the punch unit control board and the punch movement motor
- Connector between CN606 of the punch unit control board and the punch unit HP sensor
|
| SC720-28 | - Connector between CN130/CN132 of the main board and the punch unit control board
- Connector between CN607 of the punch unit control board and the punch registration motor
- Connector between CN607 of the punch unit control board and the punch registration HP sensor
|
| SC720-30 | - Connector between CN127 of the main board and the jogger motor
- Connector between CN117 of the main board and the jogger fence HP sensor
|
| SC720-33 | - Connector between CN128 of the main board and the positioning roller motor
- Connector between CN116 of the main board and the positioning roller HP sensor
|
| SC720-34 | Connector between CN138 of the main board and the corner stapler movement motor |
| SC720-35 | - Connector between CN122 of the main board and the paper stacking holder motor
- Connector between CN115 of the main board and the holder HP sensor
|
| SC720-41 | - Connector between CN121 of the main board and the feed-out belt motor
- Connector between CN117 of the main board and the feed-out belt HP sensor
|
| SC720-42 | - Connector between CN121 of the main board and the corner stapler movement motor
- Connector between CN117 of the main board and the corner stapler move HP sensor
|
| SC720-44 | Connector between CN125 of the main board and the corner stapler motor |
| SC720-50 | - Connector between CN113 of the main board and the booklet jogger motor
- Connector between CN109 of the main board and the booklet jogging HP sensor
|
| SC720-51 | - Connector between CN113 of the main board and the booklet jogging pawl movement motor
- Connector between CN108 of the main board and the booklet jogging pawl HP sensor
|
| SC720-52 | - Connector between CN112 of the main board and the press fold motor
- Connector between CN118 of the main board and the fold plate HP sensor
- Connector between CN109 of the main board and the fold plate cam HP sensor
|
| SC720-53 | - Connector between CN113 of the main board and the booklet bottom fence motor
- Connector between CN109 of the main board and the booklet lower transport path paper sensor
|
| SC720-54 | Connector between CN112 of the main board and the fold transport motor |
| SC720-60 | Connector between CN111 of the main board and the booklet stapler motor |
| SC720-70 | - Connector between CN123 of the main board and the tray lift motor
- Connector between CN115 of the main board and the shift paper height sensor
|
| SC720-71 | - Connector between CN127 of the main board and the shift motor
- Connector between CN119 of the main board and the shift roller HP sensor
|
| SC720-72 | - Connector between CN102/CN137 of the main board and the output jogger unit
- Connector between CN11 of the output jogger unit and the front fence motor
- Connector between CN10 of the output jogger unit and the front fence sensor
|
| SC720-73 | - Connector between CN102/CN137 of the main board and the output jogger unit
- Connector between CN4 of the output jogger unit and the rear fence motor
- Connector between CN10 of the output jogger unit and the rear fence sensor
|
| SC720-74 | - Connector between CN102/CN137 of the main board and the output jogger unit
- Connector between CN7 of the output jogger unit and the fence lift motor
- Connector between CN5 of the output jogger unit and the lift sensor 2
|
| SC720-75 | - Connector between CN122 of the main board and the return roller motor
- Connector between CN115 of the main board and the return roller HP sensor
|
| SC720-80 | Connector between CN102/CN137 of the main board and the output jogger unit |
| SC720-81 | Connector between CN110 of the main board and the dynamic roller transport motor |
| SC720-82 | - Connector between CN127 of the main board and the leading edge guide motor
- Connector between CN115 of the main board and the leading edge guide HP sensor
|
| SC720-83 | - Connector between CN182 of the main board and the paper guide motor
- Connector between CN139 of the main board and the paper guide HP sensor
|
| SC720-84 | No need to check the connector |
2. Check the harness
| SC No. | Check Points |
|---|
| SC720-01 | All the harnesses |
| SC720-03 | All the harnesses |
| SC720-04 | The harness which is connected to CN105 of the main board. |
| SC720-10 | Harness between CN133 of the main board and the entrance transport motor |
| SC720-11 | Harness between CN133 of the main board and the horizontal transport motor |
| SC720-13 | Harness between CN118 of the main board and the transport motor |
| SC720-15 | Harness between CN131 of the main board and the pre-stack transport motor |
| SC720-17 | Harness between CN131 of the main board and the pre-stack transport motor |
| SC720-20 | Harness between CN128 of the main board and the lower junction gate motor |
| SC720-24 | - Harness between CN128 of the main board and the paper exit guide plate motor
- Harness between CN116 of the main board and the exit guide plate HP sensor
|
| SC720-25 | - Harness between CN130/CN132 of the main board and the punch unit control board
- Harness between CN605 of the punch unit control board and the punch movement motor
- Harness between CN604 of the punch unit control board and the punch motor rotation sensor
- Harness between CN604 of the punch unit control board and the punch HP sensor
|
| SC720-27 | - Harness between CN130/CN132 of the punch unit control board and the punch unit control board
- Harness between CN606 of the punch unit control board and the punch movement motor
- Harness between CN606 of the punch unit control board and the punch unit HP sensor
|
| SC720-28 | - Harness between CN130/CN132 of the main board and the punch unit control board
- Harness between CN607 of the punch unit control board and the punch registration motor
- Harness between CN607 of the punch unit control board and the punch registration HP sensor
|
| SC720-30 | - Harness between CN127 of the main board and the jogger motor
- Harness between CN117 of the main board and the jogger fence HP sensor
|
| SC720-33 | - Harness between CN128 of the main board and the positioning roller motor
- Harness between CN116 of the main board and the positioning roller HP sensor
|
| SC720-34 | Harness between CN138 of the main board and the corner stapler movement motor |
| SC720-35 | - Harness between CN122 of the main board and the paper stacking holder motor
- Harness between CN115 of the main board and the holder HP sensor
|
| SC720-41 | - Harness between CN121 of the main board and the feed-out belt motor
- Harness between CN117 of the main board and the feed-out belt HP sensor
|
| SC720-42 | - Harness between CN121 of the main board and the corner stapler movement motor
- Harness between CN117 of the main board and the corner stapler move HP sensor
|
| SC720-44 | Harness between CN125 of the main board and the corner stapler motor |
| SC720-50 | - Harness between CN113 of the main board and the booklet jogger motor
- Harness between CN109 of the main board and the booklet jogging HP sensor
|
| SC720-51 | - Harness between CN113 of the main board and the booklet jogging pawl movement motor
- Harness between CN108 of the main board and the booklet jogging pawl HP sensor
|
| SC720-52 | - Harness between CN112 of the main board and the press fold motor
- Harness between CN118 of the main board and the fold plate HP sensor
- Harness between CN109 of the main board and the fold plate cam HP sensor
|
| SC720-53 | - Harness between CN127 of the main board and the jogger motor
- Harness between CN117 of the main board and the jogger fence HP sensor
|
| SC720-54 | Harness between CN112 of the main board and the fold transport motor |
| SC720-60 | Harness between CN111 of the main board and the booklet stapler motor |
| SC720-70 | - Harness between CN123 of the main board and the tray lift motor
- Harness between CN115 of the main board and the shift paper height sensor
|
| SC720-71 | - Harness between CN127 of the main board and the shift motor
- Harness between CN119 of the main board and the shift roller HP sensor
|
| SC720-72 | - Harness between CN102/CN137 of the main board and the output jogger unit
- Harness between CN11 of the output jogger unit and the front fence motor
- Harness between CN10 of the output jogger unit and the front fence sensor
|
| SC720-73 | - Harness between CN102/CN137 of the main board and the output jogger unit
- Harness between CN4 of the output jogger unit and the rear fence motor
- Harness between CN10 of the output jogger unit and the rear fence sensor
|
| SC720-74 | - Harness between CN102/CN137 of the main board and the output jogger unit
- Harness between CN7 of the output jogger unit and the fence lift motor
- Harness between CN5 of the output jogger unit and the lift sensor 2
|
| SC720-75 | - Harness between CN122 of the main board and the return roller motor
- Harness between CN115 of the main board and the return roller HP sensor
|
| SC720-80 | - Harness between CN102/CN137 of the main board and the output jogger unit
- All the harnesses in the output jogger unit
|
| SC720-81 | Harness between CN110 of the main board and the dynamic roller transport motor |
| SC720-82 | - Harness between CN127 of the main board and the leading edge guide motor
- Harness between CN115 of the main board and the leading edge guide HP sensor
|
| SC720-83 | - Harness between CN182 of the main board and the paper guide motor
- Harness between CN139 of the main board and the paper guide HP sensor
|
| SC720-84 | Harness which is connected to CN105 of the main board |
3. Check the motor/sensor
| SC No. | Check Points |
|---|
| SC720-01 | No need to check the motors or sensors. |
| SC720-03 | No need to check the motors or sensors. |
| SC720-04 | No need to check the motors or sensors. |
| SC720-10 | Entrance transport motor |
| SC720-11 | Horizontal transport motor |
| SC720-13 | Transport motor |
| SC720-15 | Pre-stack transport motor |
| SC720-17 | Pre-stack transport motor |
| SC720-20 | Lower junction gate motor |
| SC720-24 | Paper exit guide plate motor, Exit guide plate HP sensor |
| SC720-25 | Punch unit control board, Punch movement motor, Punch motor rotation sensor, Punch HP sensor |
| SC720-27 | Punch unit control board, Punch movement motor, Punch unit HP sensor |
| SC720-28 | Punch unit control board, Punch registration motor, Punch registration HP sensor |
| SC720-30 | Jogger motor, Jogger fence HP sensor |
| SC720-33 | Positioning roller motor, Positioning roller HP sensor |
| SC720-34 | Corner stapler movement motor |
| SC720-35 | Paper stacking holder motor, Holder HP sensor |
| SC720-41 | Feed-out belt motor, Feed-out belt HP sensor |
| SC720-42 | Corner stapler movement motor, Corner stapler move HP sensor |
| SC720-44 | Corner stapler motor |
| SC720-50 | Booklet jogger motor, Booklet jogging HP sensor |
| SC720-51 | Booklet jogging pawl movement motor, Booklet jogging pawl HP sensor |
| SC720-52 | Press fold motor, Fold plate HP sensor, Fold plate cam HP sensor |
| SC720-53 | Jogger motor, Jogger fence HP sensor |
| SC720-54 | Fold transport motor |
| SC720-60 | Booklet stapler motor |
| SC720-70 | Tray lift motor, Shift paper height sensor |
| SC720-71 | Shift motor, Shift roller HP sensor |
| SC720-72 | Front fence motor and front fence sensor of the output jogger unit |
| SC720-73 | Rear fence motor and rear fence sensor of the output jogger unit |
| SC720-74 | Fence lift motor and lift sensor 2 of the output jogger unit |
| SC720-75 | Return roller motor, Return roller HP sensor |
| SC720-80 | No need to check the motors or sensors. |
| SC720-81 | Harness between CN110 of the main board and the dynamic roller transport motor |
| SC720-82 | Leading edge guide motor, Leading edge guide HP sensor |
| SC720-83 | Paper guide motor, Paper guide HP sensor |
| SC720-84 | No need to check the motors or sensors. |
4. Check the board
| SC No. | Check Points | SC No. | Check Points |
|---|
| SC720-01 | All the boards | SC720-44 | Main board |
| SC720-03 | All the boards | SC720-50 | Main board |
| SC720-04 | Main board | SC720-51 | Main board |
| SC720-10 | Main board | SC720-52 | Main board |
| SC720-11 | Main board | SC720-53 | Main board |
| SC720-13 | Main board | SC720-54 | Main board |
| SC720-15 | Main board | SC720-60 | Main board |
| SC720-17 | Main board | SC720-70 | Main board |
| SC720-20 | Main board | SC720-71 | Main board |
| SC720-24 | Main board | SC720-72 | Main board, Main board of the output jogger unit |
| SC720-25 | Main board, Punch unit control board | SC720-73 | Main board, Main board of the output jogger unit |
| SC720-27 | Main board, Punch unit control board | SC720-74 | Main board, Main board of the output jogger unit |
| SC720-28 | Main board, Punch unit control board | SC720-75 | Main board |
| SC720-30 | Main board | SC720-80 | Main board of the output jogger unit |
| SC720-33 | Main board | SC720-81 | Main board |
| SC720-34 | Main board | SC720-82 | Main board |
| SC720-35 | Main board | SC720-83 | Main board |
| SC720-41 | Main board | SC720-84 | Main board |
| SC720-42 | Main board | | |