NCR 7448 Hardware User's Manual page 114

4-42 Chapter 4: Setup
Slip/ Validation test
7. Press 3 to start the SLIP test or
Press 4 to start the VALIDATION test
8. Insert paper into the slip (validation) slot of the printer and press any key to
start printing
9. Press 0 to stop the test
The NCR 7448 Workstation exits the PRINTER test and returns to
PRINTER Menu