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64
MO9740 Manual
2. Since this printer uses band buffer technology, if you just
print texts or barcodes the maximum length can be more
than 30 inches, whereas if you print many graphics the
maximum length can only be few inches under standard
onboard RAM.(The extension RAM, font board and flash
modules use the same connector, they cannot function at
the same time.)
65
MO9740 Manual
Interface Specifications
USB Interface Requirement
Pin Signal Name
1 VBUS
2 D -
3 D+
4 GND
Serial
The RS232 connector on the printer side is a female, DB-9.
Pin Direction Definition
1 In DSR
2 In RxData
3 Out TxData
5 - Ground
6 Out DTR
7 Out RTS
8 In CTS
9 Out +5V
Note :
Pin 9 are reserved for KDU(keyboard device unit), therefore
do not connect these pins if you are using a general host like
a PC.
12
3 4
12
3 4
USB series “B” Receptacle Interface
Connector Terminal Pin Assignment