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Confidential
Printer Reset
The UB-U09 can reset the TM printer through the serial interface by applying a signal to pin 6 or
pin 9 of the interface.
The reset signal logic can be selected by jumper JP2 on the UB-U09 for resetting using pin 6
(DSR).
To use pin 9 (INIT), the reset signal logic is fixed at Space level.
Table 4-3 Reset Signal Logic Selection
Reset by pin 6 (DSR)
Reset by pin 9 (INIT)
To reset the printer, the reset signal must conform to the electrical characteristics specified in the
UB-U09 Specifications.
Rev. B
Jumper JP2 Setting
Reset Condition
1-2 shorted
Reset upon Mark level (reset occurs when this pin is open circuit)
2-3 shorted
Reset upon Space level input
–
Reset upon Space level input
UB-U09 Developer's Guide
Function Description 4-3
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