Epson TM-T90 Specification page 38

Confidential
2.1.1.6 Notes on resetting the printer using the interface
The printer can be reset using interface pins 6 and 25 by changing the memory switch setting.
Signal Line
Pin 6 (DSR)
Pin 25 (INIT)
To reset the printer, the following requirements must be satisfied.
• DC characteristics:
Reset active voltage
Reset negative voltage
Reset active current
Reset negative current
Input impedance
EPSON
Table 2.1.3 Reset Switching
Memory Switch
Msw 1-7: ON
Msw 1-8: ON
Table 2.1.4 Reset DC Characteristics
Pin 6 (DSR)
V -15 to -3 V
A
V +3 to +15 V
N
I -5.3 mA (maximum)
A
I -5.0 mA (maximum)
N
R
3 kΩ (minimum)
IN
TITLE
TM-T90
Specification
(STANDARD)
Reset Condition
MARK level input
SPACE or TTL-HIGH level input
Pin 25 (INIT)
+2 to +15 V
-15 to + 0.8 V
1 mA (maximum)
-2 mA (maximum)
SHEET
REVISION
F
NO.
NEXT SHEET
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