Data can’t enter
The signal line ‘2’send out the
X-OFF
code ‘13H’
2.1.4Lack of paper selecting bit
SW5
说
明
ON
When the printer is lack of paper, it will stop printing, and online
the
indicator light glows green and will be continuous glint
to alert the lack
of paper.
OFF
When it is OFF, the printer will not respond for the lack of paper.
2.1.5Data transmission method of
serial interface
The receiving buffer of the printer is 16K
(1) When the number of sending data once is less than 16K, the data can be directly sent.
And the sending method is as follows:
(2)
If large amounts of data once is sent, need to judge the mark ‘CTS’ when sending the data.
When the mark is ‘1’, the data can’t be sent. When the mark is ‘0’, the data can be sent. Data
can be sent in the form of packets or byte. When the data is sent in the form of packets, each
data packet can’t exceed 256 bytes, and the sending flowchart is as follows:
Use the data wire
to connect the
upper computer
to the printer
Configure
the
communication
methods
of
the
upper computer
Power on the
printer and load
the
printing
paper
Send data +enter
Summary of Contents for RD-FH8C7
Page 41: ...B character set 1 and 2 C International standard ASCII ...
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