— 33 —
a.
The ERROR and PE LED indicators are provided with a resistance of 330 W in
the circuit to keep the current value at 10 mA. To use this terminal, adopt an
LED rated with about 2V of forward voltage. If you use an LED exceeding 10
mA, the control board may be destructed.
b. For the power supply for driving mechanism (pins 7 through 12) at the power
terminals and GND (pins 13 through 18), supply power to all the pins to keep
the capacity.
*GND of pins 4 through 6 shall be used for grounding the interface or the
like. If unnecessary, common use of GND for pins 13 through 18 is
recommended.
c.
The serial interface is equipped with RS-232C driver and receiver. Be sure to
use it at RS-232C level.
d. The RESET terminal (pin 39) is pulled up with 3.3 kW. If this terminal is not
used, set it to NC.
e.
Either serial interface or parallel interface is usable.
* You can use either one of the interfaces and cannot use both at the same
time.
f.
The attached cable is about 300 mm in length. Adjust the length as necessary.
However, avoid excessive extension of wiring. Otherwise, printer malfunction
may result due to noise, etc.
*In consideration of the effect by noise, etc., unused wiring requires some
treatment such as cutting from the root.
g. As pin 19 is used inside of the printer, Never connect it to the opposite
equipment.
CAUTION!
■
Wrong wiring may cause trouble not only on the printer but also on the opposite
equipment connected.
5.5 Specifications of Connector for USB Interface
USB miniB type
1
2
3
4
5
Pin No.
1
2
3
4
5
VBus
（
+5V
）
-Data
（
D-
）
+Data
（
D+
）
NC
GND
Name
NC:FNone Connect
CAUTION!
■
The USB interface is a factory-set option. It is not installed in the standard printer.
■
Purchase your USB cable by confirming the connector type.
