DPU-30-0B-E Seiko Instruments, DPU-30-0B-E Datasheet - Page 26
DPU-30-0B-E
Manufacturer Part Number
DPU-30-0B-E
Description
Printers PNL MNT 58MM EZ-OP
Manufacturer
Seiko Instruments
Datasheet
1.DPU-30-0B-E.pdf
(84 pages)
Specifications of DPU-30-0B-E
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Data timing for hardware control
2. Xon/Xoff control
Data timing for Xon/Xoff control
The data transmission from a host computer is controlled through the exchange of Xon(11
command and Xoff(13
When the data stored in the input buffer of the printer exceeds 4,046 bytes, the printer sends the
Xoff command to the host computer.
Upon the reception of the Xoff command, the host computer stops to send the data.
If the data stored in the input buffer of the printer falls below 3,995 bytes, the printer sends the
Xon command to the host computer.
Upon the reception of the Xon command, the host computer resumes sending the rest of the
data.
∗ When the printer fails (for example, paper-out), the printer sends the Xoff command to the
host computer.
And then, after the printer gets back to normal, the printer sends the Xon command to the
host computer.
ON -L I NE
OF F- L IN E
OFF-LINE
Paper out
OFF-LINE
ON-LINE
OFF-LINE
Paper out
ON-LINE
ON-LINE
紙 無 し
フ ゚ リン ト
紙 無 し
プリント
RT S
R x D
RxD
RTS
TxD
Print
RTS
RxD
Print
RTS
RxD
RxD
Power ON
電 源 ON
Power ON
電 源 ON
16
) command between the printer and the host computer.
Xon
Xon
40 46 バ イ ト 以 上
4046バイト 以 上
Buffer
4,046 bytes
or more
Buffer
4,046 bytes
or more
バッファ
バ ッ ファ
4-4
Xoff
Xoff
バッファ
3 995 バイト 以 下
Buffer
3,995 bytes or less
ハ ゙ ッフ ァ
Buffer
3,995 bytes or less
3 99 5 バ イ ト 以 下
Xon
Xon
Xoff
Xoff
Xon
Xon
16
)
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