Printronix P7000 H-Series Cartridge Ribbon Printer - Manual (Page 72)

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Chapter 4 HOST INTERFACE
Request To Send
This configuration is part of hardware flow control and determines when the
Request to Send (RTS) signal is generated. This signal indicates whether or
not the printer is ready to receive data.
• On Line and BNF (default). Asserts the RTS signal when the printer is
online and the internal serial buffer is not full.
• Off Line or BF . Asserts the RTS signal when the printer is offline or the
internal serial buffer is full.
• On Line . Asserts the RTS signal when the printer is online.
• False . Never asserts the RTS signal.
• True . Continuously asserts the RTS signal.
Buffer Size in K
This option configures the amount of memory allocated for the serial port
buffer. You may specify between 1, 2, 4, 8, 16, 32, 64, 128, and 256.
NOTE: If you select a baud rate that is 19200 or greater, you may need to
increase the Buffer Size in K to improve performance.
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 (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.