CHAPTER 3 INTERFACE
B-EP Series
3-52
3.6 USB INTERFACE
(1) Supported standard : Complying with USB Standard Rev. 2.0
(2) Supported transfer type : Control transfer and bulk transfer
(3) Transfer rate : Full-speed (12 Mbps)
(4) Transfer control method : A status with the receive buffer remaining capacity data shown
below is returned against the lead request just after [ESC] WB [LF]
[NUL].
The host uses it to transfer data without making the receive buffer
full.
• Receive Buffer Free Space Status
Commonly used in all modes (TPCL, TPCL1, LABEL, RECEIPT, RECEIPT1, or ESC/POS)
Status after [ESC] WB [LF] [NUL] (23 bytes)
SOH 01H
Header of the status block
STX 02H
Status
3XH
Printer status
* Details are described later.
3XH
Status type
33H This indicates a status with free space of the
receive buffer included.
Remaining count
3XH
Remaining print count
“0000” (0 label/tag) to “9999”(9999 labels/tags)
3XH
3XH
3XH
Length
32H
Total number of bytes of this status block
"23" (23 bytes)
33H
Free space of
receive buffer
3XH
Free space of the receive buffer
“00000” (0K byte) to “00512” (512K bytes)
However, the maximum value should be equal
to the receive buffer capacity.
3XH
3XH
3XH
3XH
Receive buffer
capacity
30H
Receive buffer capacity
“00512”(512K bytes)
30H
35H
31H
32H
CR 0DH
Footer of the status block
LF 0AH
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