Diagnostics and Print Tests
3–18 3255 4073–002
RS-232C Switch Settings
Switch
1 Switch
2 Switch
3 Switch
4 Switch
5 Switch
6 Switch
7 Switch
8 Setting
ON ON ON N/A OFF N/A N/A N/A DTR/DSR
control
ON ON ON N/A ON N/A N/A N/A XON/XOFF
control
ON ON ON N/A N/A OFF N/A N/A Without
parity
ON ON ON N/A N/A ON N/A N/A Odd parity
ON ON ON N/A N/A N/A OFF OFF 19,200
Baud rate
ON ON ON N/A N/A N/A ON OFF 9,600
Baud rate
ON ON ON N/A N/A N/A OFF ON 4,800
Baud rate
ON ON ON N/A N/A N/A ON ON 1,200
Baud rate
Parallel Switch Settings
Switch
1 Switch
2 Switch
3 Switch
4 Switch
5 Switch
6 Switch
7 Switch
8 Setting
ON ON ON N/A N/A N/A N/A N/A Parallel
Printers
Only
Note: When switches 1, 2, and 3 are all turned on during power up, the
printer enters the flash download mode. The other switches determine
the communication parameters.
4. Turn the printer back on.
The printer is now in flash download mode.