Drive Components
| No. | Description | No. | Description |
|---|---|---|---|
| 1 | Duplex Transport Shift Motor 1 | 5 | Duplex Transport Motor |
| 2 | Duplex Transport Shift Motor 2 | 6 | Duplex Inverter Motor |
| 3 | Edge Detection Sensor Shift Motor | 7 | Duplex Invert Solenoid |
| 4 | Duplex Exit Motor |
Duplex Transfer
When the inverter feed-in sensor [D] detects the leading edge of the paper, the duplex invert solenoid [A] turns ON and transports the paper towards the duplex section. The exit inverter motor [B] and the duplex inverter motor [C] drives to transport the paper to the inverter path. Then the duplex inverter motor [C] rotates in reverse and transports the paper to the duplex paper path (this is called a switchback operation).
The paper that has entered the duplex transport path is transported by the three duplex transport rollers (driven by the duplex transport motor [A]) and the two duplex transport rollers (driven by the duplex exit motor [B]), and then enters the paper transport section for the second side printing.
Duplex Interleaving
The interleave process during duplex printing is different, depending on the size of the paper as described below.
Paper Length | Interleaved Sheets |
|---|---|
| Longer than or equal to 139.7 mm (5.5 inches), shorter than or equal to 220 mm (8.66 inches) | 3 |
Longer than 220 mm (8.66 inches), shorter than or equal to 487.7 mm (19.2 inches) | 2 |
Paper location and flow in a 3-sheet interleaving pattern
The image transfer order in a 3-sheet interleaving pattern is as follows:
1st sheet (front side) -> 2nd sheet (front side) -> 3rd sheet (front side) -> 1st sheet (back side) -> 4th sheet (front side) -> 2nd sheet (back side) -> 5th sheet (front side) -> 3rd sheet (back side) -> 6th sheet (front side) -> 4th sheet (back side) -> 7th sheet (front side)...