Confidential
EPSON
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11 10
TM-T88III series
Specification
(STANDARD)
B
2. CONFIGURATION
2.1 Interface
2.1.1 RS-232 serial interface
2.1.1.1 Specifications
Data transmission: Serial
Synchronization: Asynchronous
Handshaking: DTR/DSR or XON/XOFF control
Signal levels: MARK = -3 to -15 V: Logic "1"/ OFF
SPACE = +3 to +15 V: Logic "0"/ ON
Baud rate: 4800, 9600, 19200, 38400 bps
[bps: bits per second]
Data word length: 7 or 8 bits
Parity Settings: None, even, odd
Stop bits: 1 or more
Connector (printer side): Female DSUB-25 pin connector
NOTES: • The data word length, baud rate, and parity depend on the DIP switch settings. (Refer to
Section 3.3.3.)
• The stop bit for the printer side is fixed to 1.
2.1.1.2 Switching between online and offline
The printer does not have an online/offline switch.
The printer goes offline:
1) Between when the power is turned on (including reset using the interface) and when the printer is
ready to receive data.
2) During the self-test.
3) When the cover is open.
4) During paper feeding using the paper feed button.
5) When the printer stops printing due to a paper-end (in cases when an empty paper supply is
detected by either paper roll end detector or the paper roll near-end detector with a printing halt
feature by ESC c 4).
6) During macro executing standby status.
7) When a temporary abnormality occurs in the power supply voltage.
8) When an error has occurred.
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