Conditions for Bidirectional Communication

To support bidirectional communication, the following conditions must be met:

When connected with parallel cables

The computer must support bidirectional communication.
The interface cable must support bidirectional communication.
The machine must be connected to the computer using the standard parallel cables and parallel connectors.
[Enable bidirectional support] must be selected, and [Enable printer pooling] must not be selected on the [Ports] tab with the printer driver.

When connected with the network

The Standard TCP/IP port must be used.
[Enable bidirectional support] must be selected, and [Enable printer pooling] must not be selected on the [Ports] tab with the printer driver.
If the Standard TCP/IP port is not used, the following conditions must be met:
- The TCP/IP protocol or the IPP protocol is used. (When using the IPP protocol, the IPP port name must include the IP address.)
- [Enable bidirectional support] must be selected, and [Enable printer pooling] must not be selected on the [Ports] tab with the printer driver.

When connected with USB

The machine must be connected to the computer's USB port using the USB interface cable.
The computer must support bidirectional communication.

The PCL 6 printer driver supports bidirectional communication and updates the machine status automatically.
The PCL 5c printer driver supports bidirectional communication. You can update the machine status manually.