CHAPTER 3 INTERFACE
B-EP
Series
3-20
• When several packets are sent (for storing a form or graphics, or printing data).
(For storing a form by sending packets, each of them is including a command.)
*1: Explanation of command packets (when the length is designated in 1 byte.)
Command packet 1
[02H] [00H][00H] [0AH] [1BH]X0;01,1[0AH][00H] [E7H][24H]
Command packet 2
[02H][00H][00H][12H][1BH]D0630,0480,0600[0AH][00H][7BH][D1H]
Command packet 3
[02H][00H][00H][0DH][1BH]AY;+00,1,1[0AH][00H][6DH][67H]
Command packet 4
[02H][00H][00H][0AH][1BH]AX;+000[0AH][00H][AAH][44H]
Command packet 5
[02H][00H][00H][29H][1BH]PV01;0050,0250,0030,0030,A,00,B,00,1,0[0AH][00H][BBH][EEH]
Command packet 2 (*1)
Command packet 11 (*1)
Command packets 3 to 10
CRC
Command
Length
Printer ID
STX
Printer
A link request is detected.
A link is established.
Within 40 msec.
Host
PAD
NAK
ACK for the command process end is
transmitted.
Command packet 1 (*1)
Start of command process
End of data storage/issue
ACK
EOT
ACK
ACK
ACK
A link request is transmitted
every 50 msec. if the printer
sends no NAK.
Within 1 sec.
Within 1 sec.
Within 1 sec.
Within 1 sec.
Normal reception (CRC OK)
Within 200 msec.
Normal reception (CRC OK)
Within 200 msec.
Normal reception (CRC OK)
Within 200 msec.