CHAPTER 3 INTERFACE
B-EP Series
3-15
• Initialize command (normal transmission)
*1: Explanation of a command packet (when the length is designated in 1 byte.)
To send [ESC] WR [LF] [NUL].
[02H]
[00H][00H] [05H] [1BH]WR[0AH][00H] [44H][2DH]
Printer
A link request is detected.
A link is established.
Within 40 msec.
Host
PAD
NAK
Normal reception (CRC OK)
ACK for the command process end is
transmitted.
Command packet (*1)
Start of command process
End of data storage
CK
EOT
CK
A link request is transmitted
every 50 msec. if the printer
sends no NAK.
Within 1 sec.
Within 1 sec.
Within 200 msec.
CRC
Command
Length
Printer ID
STX
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