Zebra KR403 Especificaciones descargar pdf (Pagina 57)

Operation

Connecting the Printer to the Host

12/23/2009 KR403 Integrators Guide P1016701-001

Serial Communications

The required cable must have a nine-pin “D” type (DB-9P) male connector on one end, which

is plugged into the mating (DB-9S) serial port located on the back of the printer. The other end

of this signal interface cable connects to a serial port at the host computer. Depending on the

specific interface requirements, this will most likely be a Null Modem (cross-over) cable.

The serial port communication settings between the printer and host (typically a PC) must

match for reliable communication. The Bits per second (data or Baud rate) and Flow control

are the most common settings that get changed. The host (typically a Windows PC) needs to

have the data rate and data Flow control changed to match the printer’s default communication

method:

• Bits per second - 115K is the printer’s default Baud Rate (Bits per second). The

printer and host can not communicate unless these match.

• Flow control - Software and is noted by the printer’s Host Handshake setting of

Xon/Xoff. The printer may communicate if these do not match, but it may not be

reliable.

• Data bits: 8 — Default (Windows and printer)

• Parity: None — Default (Windows and printer)

• Stop bits: Doesn’t care

Serial communications between the printer and the host computer can be set by:

• Autobaud synchronization

• ZPL programming ^SC command

• Resetting the printer to its default printer configuration.

Autobaud

Autobaud synchronization allows the printer to automatically match the communication

parameters of the host computer. To Autobaud:

1. Press and hold the feed button until the green status LED flashes once, twice, and then

three times.

2. While the status LED flashes, send the ^XA^XZ command sequence to the printer.

3. When the printer and host are synchronized, the LED changes to solid green. (No

receipts will print during Autobaud synchronization.)

ZPL ^SC Command

Use the Set Communications (^SC) command to change the communications settings on the

printer.

1. With the host computer set at the same communications settings as the printer, send the

^SC command to change the printer to the desired settings.

2. Change the host computer settings to match the new printer settings.

Refer to the ZPL Programming Guide for more information about this command.

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Zebra KR403 Especificaciones Pagina 57