the factory settings for the interface type are: shared, 8 kbyte buffer, 8 bit word length, even parity bit, 9600 baud, dtr protocol, and autostatus = no.

    1 buffer

    buffer size in kbyte. the maximum size is 30 kbyte.

    optional with ram extension up to 160 kb possible.

    2 word length

    length of the data to be transferred; values are 7 or 8 bit.

    3 i/f type (interface type)

    the following types are available:

    1 parallel

    2 serial

    3 shared

    in case the shared interface type is selected the printer switches automatically between the parallel and serial interface. the first data received at the port determine which interface port becomes active. the other interface port will be closed so that only one interface is active at a time (for detailed information see appendix a interface description).

    4 baud rate (only indicated if the serial interface is selected) controls the speed of data transfer. the possible transfer rates are: 600, 1200, 2400, 4800, 9600 or 19200 bps.

    5 parity bit (only indicated if the serial interface is selected)

    the data transfer will be checked by an even or odd parity bit. the values are: even, odd, none or ignore.

    6 protocol (only indicated if the serial interface is selected) selectable are: dtr, xon/xoff, ack/nak, or enq/etx/ack.

    s auto status (only indicated if the serial interface is selected)

    if the auto status is set to yes the host is able to check the status of the printer (for example no paper or printer is in the stop mode).