Epson TM-T90 Specification page 39

Confidential
• AC characteristics:
Minimum reset pulse width: TRS 1 ms (minimum)
•
When using pin 6 (DSR) (Msw 1-7: ON):
SPACE
MARK
•
When using pin 25 (INIT) (Msw 1-8: ON):
SPACE (H)
MARK (L)
NOTES: • When a signal that does not satisfy the requirements above is input, printer operation is
not guaranteed. When a signal is input to pin 25 (INIT) at the TTL level, the
requirements above must also be satisfied. Although a signal is input to pin 6 (DSR) at
the TTL level, according to the DC characteristics described above, the operation is not
guaranteed and pin 6 cannot be controlled.
• When pin 6 (DSR) and pin 25 (INIT) are open, the printer is operating.
EPSON
TRS
TRS
H
L
Figure 2.1.1 Minimum Reset Pulse Width (pin 6)
TRS
TRS
H
L
Figure 2.1.2 Minimum Reset Pulse Width (pin 25)
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TM-T90
Specification
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