Confidential
EPSON
TITLE
SHEET
REVISION
NO.
SHEET
NEXT
F
144 143
TM-T90
Specification
(STANDARD)
• After the [Header – NUL] is transmitted, the printer receives a response from the host; then it
performs the process defined by the response. (See the tables below.)
When the status (existence of the next data block) is
Hexadecimal = 41H / Decimal = 65
Response
ASCII Decimal
Process performed
ACK 6 Transmits the next data.
NAK 21 Transmits the previous data again.
CAN 24 Ends the process.
When the status (for the last data block) is
Hexadecimal = 40H / Decimal = 64
Response
ASCII Decimal
Process performed
ACK 6 Ends the process.
NAK 21 Transmits the previous data again.
CAN 24 Cancels the process.