5 - 4
When the bottom metal plate is removed by a qualified
technician, you can see the control board from the bottom as
shown in the above picture. Please be reminded that such
operation, if not done by a qualified technician, voids the
warranty. There are 3 jumpers and 1 DIP switch as circled in
white determine the characteristics of the printer besides some
difference in components. Their functions are explained below:
Jumpers vs. interfaces
JP11
JP10
JP9
Serial RS232 interface
1-2 short
2-3 short
Open
Serial RS422 interface
2-3 short
2-3 short
Open
Parallel interface
Open
1-2 short
Short
The 4 position DIP switch works as following:
Switch
position
ON
OFF
1
2
Determined by factory setting for printer mechanism
used
3
Flash ROM exists
Without flash ROM
4
Paper cutting at self test
No paper cutting at self test
The U11 is the font style memory for two byte characters. It
is different to each other of different language character set.
