NCR RealPOS User Manual - Not–On–File

Chapter 2: Product Information 

2-7 

Not–On–File 

The 7893 has a Not-On-File feature that locks the scanner and causes the LED Status Indicator 

to flash when a bar code is read that is not on file in the store system. This feature prevents the 

checker from moving beyond a product not recognized by the system. The Not-On-File feature 

is enabled and disabled through programming. 

Note:

The in-store processor and host terminal must have the host terminal software capable 

of supporting Not-On-File determination. 

The 7893 is disabled from reading additional tags until the error is cleared. To clear, select the 

host terminal’s CLEAR key and manually enter the item and price. 

Power Supply 

23756

Power Cord (U.S.)

Power Supply

The Power Supply provides the required DC voltage of the NCR 7893 The Power Cord plugs 

into an electrical outlet and connects to the Power Supply. A low voltage Power Cable 

connects the Power Supply to the 7893. Several power cords are available depending on the 

country of installation. The scanner shall operate with a 12 VDC supply with a peak current 

draw of less than 1 A. The power supply input can be 90-264 VAC at 50-60 Hz. 

In addition, some host terminal interface types can power the 7893 without the use of this 

power supply. Please contact your NCR sales representative for details.