When you establish a TELNET session with the printer, the printer operates in the same manner as a serial connection. There is no prompt, and you can send data directly to the printer's PostScript interpreter, type executive to enter PostScript executive mode, or enter control characters (see Special character processing).

Options

• Binary

• Suppress-Go-Ahead (SGA)

• Echo

• Status

Binary option

The Raw, BCP, and TBCP protocols transmit data with values in the 80H- FFH range. The Normal protocol transmits data only in the range 00H-7FH. Rather than renegotiate the Binary option each time the Protocol parameter is changed, the server attempts to move both halves of the connection permanently to the binary mode shortly after connection.

If for any reason the server cannot successfully negotiate or remain in Binary mode, then all data sent or received via TELNET will be truncated to 7 bits (the MSB of each byte is zero). It is therefore strongly recommended that clients follow these guidelines:

• Do not refuse to enter Binary mode.

• Do not attempt to exit Binary mode. If the client exits Binary mode, the TELNET server agrees to exit binary mode; however, this results in truncated data (the MSB of each byte is zero).

Echo option

• Enable local echo

• Do not enable server echo

Parameters

• DataPortNumber

• LoginPassword

DataPortNumber parameter

LoginPassword parameter

The password may be up to 32 characters in length.

To disable the password feature, set the LoginPassword parameter to the empty string.

Special character processing

• Control-T. Server replies with an engine status message.

• Control-C. Server transmits abort signal to the interpreter.

• Control-D. Server interprets this character as input EOF (End-of-File).

Signal	Description	Server action
AO	Abort Output	Forces the server to discard all output until the EOF is received. The server continues to forward input data to the interpreter, but all interpreter output is discarded up to and including the output EOF.
AYT	Are You There?	The equivalent of a control-T; results in an engine status message.
BRK	Break	Silently discarded.
EC	Erase Character	Server discards the last character inserted in the input buffer.
EL	Erase Line	Server discards the last line in the input buffer.
IP	Interrupt Process	The equivalent of a control-C; the server transmits an abort signal to the Interpreter.
NOP	No Operation	Silently discarded.