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— 3. Setup options —
Setting procedures
Input buffer size
Function
#81
This function specifies the size of the input buffer. The
buffer sizes shown below are provided.
81 BUFFER SIZE
B.SIZE: 512 KB
B.SIZE: 8 KB
Buffer size of512KB selected.
Buffer size of 8KB selected.
B.SIZE: 128 B
Buffer size of 128 bytes selected.
The buffer sizes shown below are provided.
CIN :
The printer enters the busy state when the
available space in the buffer is reduced below the
CIN value.
CRN :
The printer enters the ready state when the
available space in the buffer exceeds the CRN
value.
When the serial interface is used, processing differs
according to the protocol as shown below when the available
space in the buffer is inadequate.
Protocol
DTR
(Ready/Busy)
CIN processing
CRN processing
X-ON/X-OFF(I)
X-ON/X-OFF(II)
ETX/ACK
BUSY
READY
Sends X-OFF Sends X-ON
Stops sending ACK Begins sending ACK
Supplementary notes
BUFFER
SIZE
Parallel I/F Serial I/F
512K byte
1K byte 2K byte
CIN CRN
1K byte 2K byte
CIN CRN
8K byte
128 byte
32 byte 64 byte32byte 64 byte
When the printer enters the CIN processing in the parallel
interface, data is input at 0.5 seconds intervals.
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