6-2
Chapter 6: Operation
About Using the Operator Controls
Scan Windows
The NCR 7870 contains a vertical and horizontal scan window. The
vertical scan window is mounted in a Tower Cabinet that rises above
the checkstand surface. The horizontal scan window is flush-mounted
in the Top Plate.
Status Indicators
Status Indicator
Function
Occurs
Red
(Steady)
Indicates unit is in standby
mode to read next label.
Between scanning.
Green
Flashes once to indicate a
successful bar code read.
After scanning.
Yellow
Indicates scale has been
reset/zeroed.
Signals a scale error code may
be on display.
When Scale Zero
button is pressed.
Primarily during
Power Up.
Red
(Slow
Flash)
Indicates unit is off-line. Host
terminal may be off or
interface cable is not
connected.
When IBM 468x
communication is
used.
Red-Green
Flashing
Indicates Failure Mode. A
scanner error code will be
repeated.
During Power Up.
Red-Red-
Red
Three red flashes indicate an
item is not on record in price
lookup file.
After scanning an
item.
Red-Green
Alternate
Sleep Mode
During operator
inactivity.
Summary of Contents for 7870
Page 1: ...NCR 7870 Scanner Scale Release 1 0 User s Guide BST0 2121 90 Issue G...
Page 42: ...2 18 Chapter 2 Features Functions and Kits...
Page 86: ...4 12 Chapter 4 Installation...
Page 104: ...5 18 Chapter 5 Calibration...
Page 116: ...6 12 Chapter 6 Operation...
Page 194: ...7 78 Chapter 7 Programming...
Page 199: ...8 6 Chapter 8 Troubleshooting...
Page 221: ...A 22 Appendix A Programming Worksheets...
Page 228: ...BST0 2121 90 Nov 1999 Printed on recycled paper...