Note
All interface conditions are based on TTL level. Both the rise and fall of each signal must be less than 0.2 microseconds.
Data transfer must be carried out by observing the ACKNLG or BUSY signal. (Data transfer to this printer can be carried out only after the receipt of the ACKNLG signal or when the level of the BUSY signal is LOW.)
The column heading “Direction” refers to the direction of the signal flow as viewed from the printer.
“Return” denotes the
Serial interface
The
Data format: | 1 start bit |
| Data word length: 8 bits |
| Odd, even, or no parity |
| 1 or more stop bit |
Signal level: | Mark logical “1” |
| Space logical “0” (+3 V to +27 V) |
Handshaking: | Handshaking by DTR signal or Xon/Xoff. |
Bit rate: | 300, 12OO, 9600, 19200 bps |
Connector plug: | EIA |