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7-4. Connectors and Signals
Signal
Pin No.
Name
1
GND
2
GND
3
tXD
4
RXD
5
RtS
6
FaUlt
7
GND
8
DtR
*1 Error Condition Alarm Mode
If an error condition is detected during operation, the printer will stop
printing and cause the FaUlt signal to go MaRk. all solenoides &
motors will be de-energized. It is necessary to turn the printer power
off and on again in order to recover from the alarm mode.
This printer can detect the following error coditions:
a. Motor lock
b. Defective timing detector
c. Micro-proccessor out of program sequence
Direction
—
Shield Ground
—
Frame Ground
This pin carries data from the printer.
OUt
(Return channel)
IN
This pin carries data to the printer.
OUt
This is SPaCe when the printer power is ON.
This is MaRk when the printer is abnormal.
OUt
(Refer to error Condition alarm Mode *1.)
Or there is a paper error.
—
Signal ground.
OUt
This printer turns this pin SPaCe when
it is ready to receive data.
Figure 7-3. Modular Jack Connector
– 21 –
Function
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