Setting Data Error And Data Buffer Options (Rs-232C Models Only) - NCR 7156 Service Manual

7156 Service Guide

Setting Data Error and Data Buffer Options (RS-232C Models Only)

This function allows you to select the handling of data reception errors and to select the
size of the data buffer.
Caution: The DIP switches are pre-set at the factory and should generally not be changed.
If you must change them, do so carefully to avoid changing other functions. Run the print
test to print the settings for this function. See "Print Test" in this chapter.
Note: The operator panel may differ depending on the model. To put the printer on- or
off-line, use a paper clip or other pointed object to depress the plunger (in place of the On
Line button) on models with that item.
1.
2.
Switch 7 is always Off. Switch 8: On = knife, Off = non-knife
Switch 1
On
On
On
On
1 Default
3.
4.
5.
Open the front cover and note what the current DIP switch settings are.
Set the DIP switches for data reception errors and the data buffer.
Switch 2 Switch 3
Off On
Off On
Off On
Off On
Close the front cover and press the On Line button (or plunger).
The green LED flashes when the printer cycles. The settings are entered into EEROM.
Set the DIP switches back to the settings for normal operation (on-line mode).
See "Appendix B: Communication Information" for the switch settings.
Close the front cover and press the On Line button (or plunger).
The green LED flashes when the printer cycles. The settings are entered into EEROM.
Switch 4 Switch 5 Switch 6
Off Off Off
Off Off On
Off On Off
Off On On
September 1998
Chapter 3: Diagnostics
Option
Print "?" for Data Errors 1
Ignore Data Errors
Set Data Buffer = 4K Bytes 1
Set Data Buffer = One Line
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