KYOCERA FS-1020D 用户手册

RS-232C Protocol

B-10

The factory setting is 0.

This is a percentage from 0 to 99. The factory setting is 90.

This is a percentage from 0 to 99. The factory setting is 70.
The factory settings of the buffer nearly-full and nearly-empty thresholds 

(H6 and H7) are subject to change without notification.
The gap between the nearly-full and nearly-empty thresholds allows the 

computer to send a fairly large amount of data in a continuous stream.

This is the size of the input buffer, specified in units of 10 Kbytes. The 

factory-set value is 6, meaning 60 Kbytes.

B.4.1 PRESCRIBE FRPO D0 Command

The PRESCRIBE FRPO D0 command provides control over XON/XOFF 

operation when an error occurs on the serial interface. The following table 

summarizes the error status corresponding to different D0 values.

0

Combination of 1 and 3 below

1

DTR/DSR,  positive  logic

2

DTR/DSR, negative logic

3

XON/XOFF

4

ETX/ACK

5

XON/XOFF recognized only as protocol

Timing of XON 
transfer to host 
while Ready or 
Waiting

XON sent every 
3-5 seconds

D0=0 (default)

D0=1

XON not sent

D0=10

D0=11