Chapter 4 HOST INTERFACE
Serial Submenu
IMPORTANT The serial parameters in the printer must be set the same as the serial interface in the host computer. Otherwise, the printer might not work online, and data characters from the computer might not print or might print as “garbled” text.
* = Factory Default
Serial
(from page 103)
Interface Type
Data Protocol
XON/XOFF*
ETX/ACK
ACK/NAK DTR
Baud Rate
600
1200
2400
4800
9600*
19200
38400
57600
115200
Word Length
8*
7
Stop Bits
1*
2
Parity
None*
Odd
Even
Mark
Sense
Data Term
Ready
Request To
Send
Buffer Size in
K
True* | True* | 8* |
Online and BNF | Online and BNF | |
Offline or BF | Offline or BF |
|
False | False |
|
The serial submenu allows you to choose the configuration of the Serial host interface type, as shown above. Several other serial parameters are included on this menu, as shown below and described in the following pages.
Interface Type
Allows you to select either the
Data Protocol
You can select one of the following serial interface protocols to meet the host interface requirements.
•XON / XOFF. The default. The printer controls the flow of communication from the host by turning the transmission on and off.
In some situations, such as when the buffer is full or the timing of signals is too slow or too fast, the printer will tell the host to stop transmission by sending an XOFF character.
An XOFF character is sent when the number of empty bytes in the buffer is less than or equal to 25 percent of the buffer size.
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