Seiko SLP240 Bedienungsanleitung PDF herunterladen (Seite 4)

used. In case of the USB interface, the Smart Label Printer returns a status byte on receipt

of a BULK-IN command from the Host.

The status byte is initialized when the printer is reset (by power-up or command). The

printer sends the status byte, followed by an XON character, and then sets the RTS signal

high. In case of the USB interface, the Smart Label Printer returns a status byte on receipt

of a BULK-IN command from the Host.

4. Printer Buffer Size

The Smart Label Printer’s input buffer has a capacity of 256 bytes.

5. RS-232 Handshaking

When the input buffer is almost full (less than 32 bytes free), the printer will indicate a

“buffer full” condition by sending an XOFF character (13h) to the host and setting the

RTS signal low.

After the “buffer full” condition has occurred and the input buffer has been emptied to the

point where there are only 100 bytes of data remaining in the buffer, the printer will

indicate a “buffer empty” condition by sending an XON character (11h) to the host and

setting the RTS signal high.

The buffer full and buffer empty thresholds may be changed with the

CMD_XOFF_THRESH and CMD_XON_THRESH commands, respectively.

6. Serial Interface Cable

The Smart Label Printer may be connected to the host computer using the interface cable

included with the printer. The RS-232 interface cable is wired as follows:

Smart Label Printer Wire PC Host

Signal RJ-11 Color Direction Signal DB-9F

--- 1 Blue

---

--- ---

RD 2 Yellow

TD 3

TD 3 Green

RD 2

GND 4 Red, shield

GND 5, shell

--- 5 Black

---

--- ---

RTS 6 White

DSR, CTS 6, 8

- 4 -

1 2 3 4 5 6 7 8 9 ... 31 32

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Seiko SLP240 Bedienungsanleitung Seite 4