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Buffer Size in K
This option configures the amount of memory allocated for the serial port buffer. You may specify
between 1 and 16 Kbytes, in 1-Kbyte increments. The default is 16K.
NOTE: 1. If you select a baud rate that is 19200 or greater, you may want to increase the Buffer Size in K
parameter to improve performance.
2. H-Series and OpenPrint HD products have a range of 1 to 256 and a default of 64K.
Poll Character
This option is for the Series1 protocol. Whenever the printer receives this character, it sends a response
to the host indicating the current state of the printer (see Series1 protocol). It may be configured from 0
through FF hexadecimal.
Poll Response
This option is for the Series1 protocol. After receiving a poll character, the printer will wait the poll
response time in milliseconds before sending the response. It may be configured from 0 through 30.
Idle Response
This option is for the Series1 protocol.
•
Disable (factory default)
•
Enable. The printer will send a response character every two seconds while the number of valid
bytes in the buffer is less than 75 percent of the buffer size.
One Char Enquiry
The One Char Enquiry mode uses the Poll Character to detect a request from the host and sends a
response back to the host. This option also allows you to turn on and off this feature.
The Poll Character is removed from the data stream. If the Data Protocol is set to ETX/ACK, ACK/NAK, or
Series 1, One Char Enquiry is automatically disabled.
Framing Errors
Possible errors that can occur when the printer's serial interface settings do not match those of the host
computer.
•
Enable (factory default). If a framing error occurs, a fault message will display on the control panel.
•
Disable. If a framing error occurs, a fault message will not display on the control panel.
Table 9 One Char Enquiry Response Characters
Printer State
Online and Buffer Not Full
Online and Buffer Full
Offline and Buffer Not Full
Offline and Buffer Full
Response (hex)
22
23
20
21
85
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