Epson T88III specifications Reset DC Characteristics, Minimum Reset Pulse Width pin

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To reset the printer, the following requirements must be satisfied.

•DC characteristics:

Table 2.1.4 Reset DC Characteristics

		Pin 6 (DSR)	Pin 25 (INIT)
Reset active voltage	VA	-15 to -3 V	+2 to +15 V
Reset negative voltage	VN	+3 to +15 V	-15 to + 0.8 V
Reset active current	IA	-5.3 mA (maximum)	1 mA (maximum)
Reset negative current	IN	-5.0 mA (maximum)	-2 mA (maximum)
Input impedance	RIN	3 kΩ (minimum)

•AC characteristics:

Minimum reset pulse width: TRS 1 ms (minimum)

•When using pin 6 (DSR) (DIP switch 2-7 is ON):

H

SPACE

L

MARK

TRS

Figure 2.1.1 Minimum Reset Pulse Width (pin 6)

•When using pin 25 (INIT) (DIP switch 2-8 is ON):

TRS TRS

SPACE (H)

MARK (L)L

Figure 2.1.2 Minimum Reset Pulse Width (pin 25)

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.

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TM-T88IIIseries

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