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4039-1XX
Switch 8 – Buffer Size: Switch 8 allows the adapter buffer size to
be limited, to minimize the amount of data in the buffer at any time.
8
Buffer Size
Off
Normal
On
Minimum
Switch 9 – Protocol: Switch 9 selects the type of protocol.
9
Protocol
Off
DTR pacing (RS232 only)
On
XON/XOFF
Switch 10 - Print Test: Switch 10 selects the print test for the serial
interface card. This tests the connection between the serial interface
unit and the printer. The printout contains the serial interface unit
code level and switch settings, and the printer character set.
Note: For the serial print test to work [Advanced Status] (found
under the [PARALLEL SETUP] menu) must be set to [Off].
To run the serial interface test print:
1. Turn the printer power off.
2. Set serial interface Switch 10 [On].
3. Turn the printer power on.
If the printer does not generate a printout, there is a problem with the
serial interface card or its connection to the printer. Check the switch
settings and ensure that the serial interface unit is correctly installed.
When the test is complete, reset Switch 10 to [Off].
10
Print Test
Off
Normal Mode
On
Test mode
Diagnostic Aids
49
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