1. Transport path
  2. Transport rollers driven by right transport motor
  3. Right transport motor
  4. Transport rollers driven by right transport motor
  5. Transport rollers driven by left transport motor
  6. Left transport motor
  7. Transport rollers driven by left transport motor

Paper coming from the main machine passes through the entrance of the buffer pass unit.

In response to the print start signal from the engine, the right transport motor starts up and rotates the six transport rollers on the right side of the path to transport paper to the left side.

1.05 seconds after the right transport motor starts, the left transport motor starts up to rotate the six transport rollers on the left side to send paper to the exit.

The buffer pass unit has eight sensors to detect jams; operation stops when a jam is detected.